Head-to-head comparison

Claude Fable 5.1 vs. Mistral Large 3

Compare published benchmark results from matching versions and cohorts, API pricing, and technical specifications. Any documented test setup differences remain visible.

shared result series: 81
distinct benchmarks: 11
latest retrieval: 2026-10-15

First modelSecond model

Specifications

General specifications

Release date, availability, context window, architecture, and published parameter counts at a glance. Undisclosed details remain marked as unavailable.

Specifications for Claude Fable 5.1 and Mistral Large 3
Attribute	Claude Fable 5.1	Mistral Large 3
Provider	Anthropic	Mistral AI
Released	Sep 1, 2026	Dec 2, 2025
Availability	Active	Active
Model type	Proprietary	Open Weights
Parameters	Not published	675B, 41B active
Architecture	Not published	Mixture of Experts
Context window	1,000,000 tokens	262,144 tokens
Knowledge cutoff	June 2026	Not published
Technical sources	Model	Model, Context

Pricing

API pricing compared

The table compares official standard API rates per 1M tokens, including published cache pricing. Batch, fast, priority, regional surcharges, tool calls, and cloud platform pricing are excluded.

API pricing for Claude Fable 5.1 and Mistral Large 3
Price type	Claude Fable 5.1	Mistral Large 3
API input	$10	$0.5
API output	$50	$1.5
Cache read	$0.25	Not listed
Cache write (5 min.)	$12.5	Not listed
Cache write (1 hr.)	$20	Not listed
Price verified	09/22/2026 Source	09/22/2026 Source

Claude Fable 5.1Mistral Large 3

API inputUSD per 1M tokens, base tier

Claude Fable 5.1$10

Mistral Large 3$0.5

API outputUSD per 1M tokens, base tier

Claude Fable 5.1$50

Mistral Large 3$1.5

Key to the marks:better valuebetter, but not conclusivetie

Pricing by provider

Direct developer pricing and provider endpoint tariffs routed through OpenRouter are listed separately. Prices are in USD per 1M tokens. Context-dependent direct tiers plus regional, Flex, Priority, and other OpenRouter tariffs remain individually identifiable.

Provider pricing for Claude Fable 5.1 and Mistral Large 3
Model	Provider	Purchase route and tariff	Input per 1M tokens	Output per 1M tokens	Source
Claude Fable 5.1	Anthropic	Direct from developerStandard API	Lowest listed price: $10	Lowest listed price: $50	Source09/22/2026
	Amazon Bedrock	Via OpenRouteramazon-bedrock	Lowest listed price: $10	Lowest listed price: $50	Source10/18/2026
	Anthropic	Via OpenRouteranthropic	Lowest listed price: $10	Lowest listed price: $50	Source10/18/2026
	Azure	Via OpenRouterazure	Lowest listed price: $10	Lowest listed price: $50	Source10/18/2026
	Google	Via OpenRoutergoogle-vertex/global	Lowest listed price: $10	Lowest listed price: $50	Source10/18/2026
Mistral Large 3	Mistral AI	Direct from developerStandard API	Lowest listed price: $0.5	Lowest listed price: $1.5	Source09/22/2026
	Mistral	Via OpenRoutermistral/eu	$0.55	$1.65	Source10/18/2026
	Mistral	Via OpenRoutermistral/zdr	Lowest listed price: $0.5	Lowest listed price: $1.5	Source10/18/2026

Performance

Shared benchmarks

Only published results with the same benchmark version, task, metric, and comparison cohort are paired. Different reasoning levels, agents, harnesses, or output limits appear directly in the table.

Capability profile from matched benchmarks

Each axis averages directly matched benchmark families. A value of 100 means the stronger value within this pair, not a universal quality score.

Not enough directly matched categories for a reliable radar

Only 0 of at least 5 categories have comparable, direct model measurements. The benchmark tables below show the available evidence without filling missing axes.

Claude Fable 5.1Mistral Large 3

GPQA DiamondOverall. Higher is better. Test setup not documented as identical

Claude Fable 5.193.434 %

Mistral Large 368.434 %

LegalBenchOverall. Higher is better. Test setup not documented as identical

Claude Fable 5.188.511 %

Mistral Large 379.138 %

LiveCodeBench v6Overall. Higher is better. Test setup not documented as identical

Claude Fable 5.190.515 %

Mistral Large 355.337 %

LMArena Code Arena WebDevOverall. Higher is better. Test setup not documented as identical

Claude Fable 5.11,742.652

Mistral Large 31,230.205

LMArena Text, Style ControlOverall. Higher is better. Test setup not documented as identical

Claude Fable 5.11,500.568

Mistral Large 31,414.136

LMArena Vision, Style ControlOverall. Higher is better. Test setup not documented as identical

Claude Fable 5.11,286.407

Mistral Large 31,199.757

MMLU-ProOverall. Higher is better. Test setup not documented as identical

Claude Fable 5.192.375 %

Mistral Large 379.823 %

MMMU-ProOverall. Higher is better. Test setup not documented as identical

Claude Fable 5.190.636 %

Mistral Large 366.185 %

MortgageTaxOverall. Higher is better. Test setup not documented as identical

Claude Fable 5.170.786 %

Mistral Large 352.106 %

SAGEOverall. Higher is better. Test setup not documented as identical

Claude Fable 5.148.526 %

Mistral Large 324.595 %

TaxEval v2Overall. Higher is better. Test setup not documented as identical

Claude Fable 5.175.961 %

Mistral Large 373.058 %

GPQA DiamondFew-Shot CoT. Higher is better. Test setup not documented as identical

Claude Fable 5.192.929 %

Mistral Large 364.141 %

Key to the marks:better valuebetter, but not conclusivetie

Benchmark scores for Claude Fable 5.1 and Mistral Large 3
Benchmark and task	Claude Fable 5.1	Mistral Large 3	Source
GPQA DiamondOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value93.434 %	68.434 %	Vals AI Source details Data as of: 09/01/2026
LegalBenchOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value88.511 %	79.138 %	Vals AI Source details Data as of: 10/13/2026
LiveCodeBench v6Overall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value90.515 %	55.337 %	Vals AI Source details Data as of: 09/01/2026
LMArena Code Arena WebDevOverall Test details Test setup not documented as identicalNo direct winnerVersion: webdevMetric: WebDev Arena Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Code Arena WebDev Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Code Arena WebDevClaude Fable 5.1: Arena rating from 7,230 published pairwise votes.Mistral Large 3: Arena rating from 839 published pairwise votes.	Higher measured value1,742.652 95% confidence interval: ±9.147The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,230.205 95% confidence interval: ±25.485The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
LMArena Text, Style ControlOverall Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Text, style controlClaude Fable 5.1: Arena rating from 14,121 published pairwise votes.Mistral Large 3: Arena rating from 83,498 published pairwise votes.	Higher measured value1,500.568 95% confidence interval: ±6.106The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,414.136 95% confidence interval: ±2.865The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
LMArena Vision, Style ControlOverall Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Vision, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Vision, style controlClaude Fable 5.1: Arena rating from 4,648 published pairwise votes.Mistral Large 3: Arena rating from 8,643 published pairwise votes.	Higher measured value1,286.407 95% confidence interval: ±9.66The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,199.757 95% confidence interval: ±7.981The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/09/2026
MMLU-ProOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value92.375 %	79.823 %	Vals AI Source details Data as of: 09/01/2026
MMMU-ProOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value90.636 %	66.185 %	Vals AI Source details Data as of: 09/01/2026
MortgageTaxOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value70.786 %	52.106 %	Vals AI Source details Data as of: 09/01/2026
SAGEOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 30,000 tokens Mistral Large 3: Temperature: 1, Output limit: 30,000 tokens	Higher measured value48.526 %	24.595 %	Vals AI Source details Data as of: 10/08/2026
TaxEval v2Overall Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value75.961 %	73.058 %	Vals AI Source details Data as of: 09/01/2026
GPQA DiamondFew-Shot CoT Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value92.929 %	64.141 %	Vals AI Source details Data as of: 09/01/2026
LegalBenchConclusion Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value92.511 %	81.032 %	Vals AI Source details Data as of: 10/13/2026
LiveCodeBench v6Easy Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value99.068 %	95.342 %	Vals AI Source details Data as of: 09/01/2026
LMArena Code Arena WebDevImage to webdev Test details Test setup not documented as identicalNo direct winnerVersion: webdevMetric: WebDev Arena Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Code Arena WebDev Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Code Arena WebDevClaude Fable 5.1: Arena rating from 2,470 published pairwise votes.Mistral Large 3: Arena rating from 1,413 published pairwise votes.	Higher measured value1,719.751 95% confidence interval: ±13.642The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,361.78 95% confidence interval: ±17.387The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/09/2026
LMArena Text, Style ControlBusiness, management and finance Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Text, style controlClaude Fable 5.1: Arena rating from 2,589 published pairwise votes.Mistral Large 3: Arena rating from 15,540 published pairwise votes.	Higher measured value1,485.231 95% confidence interval: ±11.847The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,409.853 95% confidence interval: ±5.362The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
LMArena Vision, Style ControlChinese Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Vision, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Vision, style controlClaude Fable 5.1: Arena rating from 260 published pairwise votes.Mistral Large 3: Arena rating from 540 published pairwise votes.	Higher measured value1,340.8 95% confidence interval: ±36.169The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,211.728 95% confidence interval: ±27.072The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/09/2026
MMLU-ProBiology Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value96.095 %	88.563 %	Vals AI Source details Data as of: 09/01/2026
MortgageTaxNumerical Extraction Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value77.583 %	50 %	Vals AI Source details Data as of: 09/01/2026
SAGEAutomata Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 30,000 tokens Mistral Large 3: Temperature: 1, Output limit: 30,000 tokens	Higher measured value34.524 %	11.905 %	Vals AI Source details Data as of: 10/08/2026
TaxEval v2Correctness Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value64.105 %	61.57 %	Vals AI Source details Data as of: 09/01/2026
GPQA DiamondZero-Shot CoT Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value93.939 %	72.727 %	Vals AI Source details Data as of: 09/01/2026
LegalBenchInterpretation Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value86.902 %	76.594 %	Vals AI Source details Data as of: 10/13/2026
LiveCodeBench v6Hard Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value80.571 %	17.143 %	Vals AI Source details Data as of: 09/01/2026
LMArena Code Arena WebDevWebdev Test details Test setup not documented as identicalNo direct winnerVersion: webdevMetric: WebDev Arena Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Code Arena WebDev Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Code Arena WebDevClaude Fable 5.1: Arena rating from 7,230 published pairwise votes.Mistral Large 3: Arena rating from 839 published pairwise votes.	Higher measured value1,742.652 95% confidence interval: ±9.147The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,230.205 95% confidence interval: ±25.485The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
LMArena Text, Style ControlChinese Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Text, style controlClaude Fable 5.1: Arena rating from 1,069 published pairwise votes.Mistral Large 3: Arena rating from 6,341 published pairwise votes.	Higher measured value1,567.304 95% confidence interval: ±18.995The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,432.609 95% confidence interval: ±7.919The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
LMArena Vision, Style ControlCreative writing vision Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Vision, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Vision, style controlClaude Fable 5.1: Arena rating from 476 published pairwise votes.Mistral Large 3: Arena rating from 807 published pairwise votes.	Higher measured value1,289.586 95% confidence interval: ±29.623The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,196.146 95% confidence interval: ±22.467The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/09/2026
MMLU-ProBusiness Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value95.184 %	84.664 %	Vals AI Source details Data as of: 09/01/2026
MortgageTaxSemantic Extraction Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value63.99 %	54.213 %	Vals AI Source details Data as of: 09/01/2026
SAGECalculus Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 30,000 tokens Mistral Large 3: Temperature: 1, Output limit: 30,000 tokens	Higher measured value83.642 %	0 %	Vals AI Source details Data as of: 10/08/2026
TaxEval v2Stepwise Reasoning Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value87.817 %	84.546 %	Vals AI Source details Data as of: 09/01/2026
LegalBenchIssue Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value92.72 %	81.006 %	Vals AI Source details Data as of: 10/13/2026
LiveCodeBench v6Medium Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value91.906 %	53.525 %	Vals AI Source details Data as of: 09/01/2026
LMArena Code Arena WebDevWebdev-html Test details Test setup not documented as identicalNo direct winnerVersion: webdevMetric: WebDev Arena Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Code Arena WebDev Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Code Arena WebDevClaude Fable 5.1: Arena rating from 855 published pairwise votes.Mistral Large 3: Arena rating from 839 published pairwise votes.	Higher measured value1,690.402 95% confidence interval: ±23.795The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,238.427 95% confidence interval: ±26.132The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
LMArena Text, Style ControlCoding Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Text, style controlClaude Fable 5.1: Arena rating from 2,816 published pairwise votes.Mistral Large 3: Arena rating from 21,009 published pairwise votes.	Higher measured value1,535.255 95% confidence interval: ±11.537The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,470.833 95% confidence interval: ±4.783The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
LMArena Vision, Style ControlDiagram Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Vision, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Vision, style controlClaude Fable 5.1: Arena rating from 1,100 published pairwise votes.Mistral Large 3: Arena rating from 2,169 published pairwise votes.	Higher measured value1,326.379 95% confidence interval: ±18.282The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,235.106 95% confidence interval: ±13.517The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/09/2026
MMLU-ProChemistry Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value93.816 %	84.982 %	Vals AI Source details Data as of: 09/01/2026
SAGELinear Algebra Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 30,000 tokens Mistral Large 3: Temperature: 1, Output limit: 30,000 tokens	Higher measured value71.371 %	44.419 %	Vals AI Source details Data as of: 10/08/2026
LegalBenchRhetoric Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value82.295 %	77.926 %	Vals AI Source details Data as of: 10/13/2026
LMArena Text, Style ControlCreative writing Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Text, style controlClaude Fable 5.1: Arena rating from 3,200 published pairwise votes.Mistral Large 3: Arena rating from 14,972 published pairwise votes.	Higher measured value1,483.901 95% confidence interval: ±11.553The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,373.958 95% confidence interval: ±5.611The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
LMArena Vision, Style ControlEnglish Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Vision, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Vision, style controlClaude Fable 5.1: Arena rating from 1,686 published pairwise votes.Mistral Large 3: Arena rating from 2,983 published pairwise votes.	Higher measured value1,277.583 95% confidence interval: ±15.139The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,210.278 95% confidence interval: ±12.173The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/09/2026
MMLU-ProComputer Science Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value94.878 %	83.171 %	Vals AI Source details Data as of: 09/01/2026
SAGEPartial Differential Equations Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 30,000 tokens Mistral Large 3: Temperature: 1, Output limit: 30,000 tokens	Higher measured value39.683 %	17.46 %	Vals AI Source details Data as of: 10/08/2026
LegalBenchRule Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value88.125 %	79.13 %	Vals AI Source details Data as of: 10/13/2026
LMArena Text, Style ControlEnglish Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Text, style controlClaude Fable 5.1: Arena rating from 5,753 published pairwise votes.Mistral Large 3: Arena rating from 34,656 published pairwise votes.	Higher measured value1,496.791 95% confidence interval: ±8.329The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,426.99 95% confidence interval: ±3.961The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
LMArena Vision, Style ControlHomework Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Vision, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Vision, style controlClaude Fable 5.1: Arena rating from 690 published pairwise votes.Mistral Large 3: Arena rating from 891 published pairwise votes.	Higher measured value1,335.022 95% confidence interval: ±22.506The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,211.931 95% confidence interval: ±20.61The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/09/2026
MMLU-ProEconomics Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value95.142 %	85.782 %	Vals AI Source details Data as of: 09/01/2026
LMArena Text, Style ControlEntertainment, sports and media Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Text, style controlClaude Fable 5.1: Arena rating from 3,559 published pairwise votes.Mistral Large 3: Arena rating from 18,448 published pairwise votes.	Higher measured value1,475.342 95% confidence interval: ±10.833The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,372.089 95% confidence interval: ±5.132The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
LMArena Vision, Style ControlHumor Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Vision, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Vision, style controlClaude Fable 5.1: Arena rating from 193 published pairwise votes.Mistral Large 3: Arena rating from 427 published pairwise votes.	Higher measured value1,280.538 95% confidence interval: ±42.439The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,187.198 95% confidence interval: ±29.507The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/09/2026
MMLU-ProEngineering Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value90.815 %	74.923 %	Vals AI Source details Data as of: 09/01/2026
LMArena Text, Style ControlExcluding ties Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Text, style controlClaude Fable 5.1: Arena rating from 10,459 published pairwise votes.Mistral Large 3: Arena rating from 61,071 published pairwise votes.	Higher measured value1,518.19 95% confidence interval: ±8.066The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,401.523 95% confidence interval: ±3.976The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
LMArena Vision, Style ControlOcr Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Vision, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Vision, style controlClaude Fable 5.1: Arena rating from 3,190 published pairwise votes.Mistral Large 3: Arena rating from 5,778 published pairwise votes.	Higher measured value1,302.401 95% confidence interval: ±10.866The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,215.499 95% confidence interval: ±8.709The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/09/2026
MMLU-ProHealth Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value86.675 %	77.262 %	Vals AI Source details Data as of: 09/01/2026
LMArena Text, Style ControlExpert prompts Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Text, style controlClaude Fable 5.1: Arena rating from 1,222 published pairwise votes.Mistral Large 3: Arena rating from 7,976 published pairwise votes.	Higher measured value1,523.697 95% confidence interval: ±17.383The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,427.286 95% confidence interval: ±7.215The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
MMLU-ProHistory Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value85.302 %	70.866 %	Vals AI Source details Data as of: 09/01/2026
LMArena Text, Style ControlFrench Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Text, style controlClaude Fable 5.1: Arena rating from 476 published pairwise votes.Mistral Large 3: Arena rating from 2,379 published pairwise votes.	Higher measured value1,517.688 95% confidence interval: ±29.031The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,432.543 95% confidence interval: ±13.786The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
MMLU-ProLaw Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value87.466 %	56.403 %	Vals AI Source details Data as of: 09/01/2026
LMArena Text, Style ControlGerman Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Text, style controlClaude Fable 5.1: Arena rating from 268 published pairwise votes.Mistral Large 3: Arena rating from 1,359 published pairwise votes.	Higher measured value1,484.511 95% confidence interval: ±35.581The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,407.953 95% confidence interval: ±17.201The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
MMLU-ProMath Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value97.335 %	88.379 %	Vals AI Source details Data as of: 09/01/2026
LMArena Text, Style ControlHard prompts Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Text, style controlClaude Fable 5.1: Arena rating from 8,244 published pairwise votes.Mistral Large 3: Arena rating from 50,980 published pairwise votes.	Higher measured value1,520.197 95% confidence interval: ±7.328The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,432.155 95% confidence interval: ±3.56The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
MMLU-ProOthers Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value89.935 %	79.221 %	Vals AI Source details Data as of: 09/01/2026
LMArena Text, Style ControlHard prompts, English Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Text, style controlClaude Fable 5.1: Arena rating from 3,345 published pairwise votes.Mistral Large 3: Arena rating from 21,186 published pairwise votes.	Higher measured value1,516.447 95% confidence interval: ±10.669The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,439.589 95% confidence interval: ±4.785The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
MMLU-ProPhilosophy Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Fable 5.1: Compute: max, Temperature: 1, Output limit: 128,000 tokens Mistral Large 3: Temperature: 0.065, Output limit: 256,000 tokens	Higher measured value90.18 %	76.353 %	Vals AI Source details Data as of: 09/01/2026
LMArena Text, Style ControlInstruction following Test details Test setup not documented as identicalNo direct winnerVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterClaude Fable 5.1: Snapshot: claude-fable-5.1-max, Reasoning: max, Harness: Arena Text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena Text, style controlClaude Fable 5.1: Arena rating from 4,222 published pairwise votes.Mistral Large 3: Arena rating from 26,939 published pairwise votes.	Higher measured value1,496.708 95% confidence interval: ±9.807The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	1,401.72 95% confidence interval: ±4.374The Arena score measures human preference rather than a fixed capability test. The confidence interval, Arena category, and model configuration are part of the result.	LMArena Source details Data as of: 10/13/2026
Key to the marks:better valuebetter, but not conclusivetie

Our model tests

Our tests

SVG short test

One SVG prompt and fixed output settings. Captures are shown only with 0 reported reasoning tokens or documented lack of reasoning controls. Identical test conditions do not make the models' internal compute identical.

Shared test round: 4ae5d8eeb9a9

Claude Fable 5.1

Unavailable in this round

Mistral Large 3

API request failed. The model was not evaluated.

Earlier tests

Pelican on a bicycle

A community classic for free-form SVG drawing.

Claude Fable 5.1

Reasoning (requested): high

Current attempt

Run date: Sep 7, 2026
API provider: openrouter
Requested API model: anthropic/claude-fable-5.1
API model reported in response: anthropic/claude-fable-5.1
Reasoning setting: high
Pinned endpoint: Anthropic | anthropic/claude-fable-5.1-20260831
Temperature: Provider default
Token limit including reasoning: 8,192 tokens
Test protocol: community-visual-tests-v1
Technical checks: Passed, not a quality rating
Response time: 27 s

Visually reviewed. This individual test does not establish overall model quality.

Mistral Large 3

Reasoning (model default): no reasoning mode Source

Current attempt

Run date: Oct 1, 2026
API provider: openrouter
Requested API model: mistralai/mistral-large-2512
API model reported in response: mistralai/mistral-large-2512
Reasoning setting: not specified
Pinned endpoint: Mistral | mistralai/mistral-large-2512
Temperature: Provider default
Token limit including reasoning: 8,192 tokens
Test protocol: community-visual-tests-v1
Technical checks: Passed, not a quality rating
Response time: 14.2 s

Visually reviewed. This individual test does not establish overall model quality.

Earlier attempts (1)

Sep 7, 2026API request failedReasoning setting: not specified

Prompt and test conditions

Generate an SVG of a pelican riding a bicycle

Token limit including reasoning: 8,192 tokens

Task origin (Simon Willison)

How to read this comparison

Winning one benchmark is not an overall verdict

Your workload, budget, and required context length matter most. A coding benchmark says little about visual understanding or agent performance.

The standard price table uses direct developer rates. The provider comparison labels OpenRouter endpoints, regions, and special tariffs separately.

Every result links to its measurement source and retrieval date. Labels distinguish vendor reports, official benchmark leaderboards, and independent evaluations. Disputed or archived results are excluded.

More matchups

Compare Claude Fable 5.1 and Mistral Large 3 with other leading models using the same data and benchmark logic.

View the complete LLM comparison

Claude Fable 5.1 vs. Mistral Large 3

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General specifications

API pricing compared

Shared benchmarks

Capability profile from matched benchmarks

Our tests

SVG short test

Claude Fable 5.1

Mistral Large 3

Pelican on a bicycle

Winning one benchmark is not an overall verdict

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