Head-to-head comparison

Claude Sonnet 4.6 vs. Gemini 4 Argon

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

shared result series: 124
distinct benchmark metrics: 11
latest retrieval: 2026-10-16

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 Sonnet 4.6 and Gemini 4 Argon
Attribute	Claude Sonnet 4.6	Gemini 4 Argon
Provider	Anthropic	Google DeepMind
Released	Feb 2026	Oct 13, 2026
Availability	Active	Active
Model type	Proprietary	Proprietary
Parameters	Not published	Not published
Architecture	Not published	Not published
Context window	1,000,000 tokens	1,048,576 tokens shared across input, thinking, and output
Knowledge cutoff	August 2025	Not published
Technical sources	Model, Context	Model

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 Sonnet 4.6 and Gemini 4 Argon
Price type	Claude Sonnet 4.6	Gemini 4 Argon
API input	$3	$2
API output	$15	$10
Cache read	$0.3	$0.1
Cache write (5 min.)	$3.75	Not listed
Cache write (1 hr.)	$6	Not listed
Price verified	09/22/2026 Source	10/25/2026 Source
Gemini 4 Argon, Standard pricing through November 30, 2026 Per 1 million tokens: $2.00 input, $10.00 output including thinking, and $0.10 cached input. Source
Gemini 4 Argon, Standard pricing from December 1, 2026 Per 1 million tokens: $4.00 input, $20.00 output including thinking, and $0.20 cached input. Source
Gemini 4 Argon, Caching Implicit caching only; explicit caching is not supported. Source

Claude Sonnet 4.6Gemini 4 Argon

API inputUSD per 1M tokens, base tier

Claude Sonnet 4.6$3

Gemini 4 Argon$2

API outputUSD per 1M tokens, base tier

Claude Sonnet 4.6$15

Gemini 4 Argon$10

Cache readUSD per 1M tokens, base tier

Claude Sonnet 4.6$0.3

Gemini 4 Argon$0.1

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.

No provider tariff for Gemini 4 Argon is available in the stored OpenRouter snapshot. The official direct price is still shown.

Provider pricing for Claude Sonnet 4.6 and Gemini 4 Argon
Model	Provider	Purchase route and tariff	Input per 1M tokens	Output per 1M tokens	Source
Claude Sonnet 4.6	Anthropic	Direct from developerStandard API	Lowest listed price: $3	Lowest listed price: $15	Source09/22/2026
	Amazon Bedrock	Via OpenRouteramazon-bedrock/eu-west-1	$3.3	$16.5	Source10/26/2026
	Amazon Bedrock	Via OpenRouteramazon-bedrock/global	Lowest listed price: $3	Lowest listed price: $15	Source10/26/2026
	Amazon Bedrock	Via OpenRouteramazon-bedrock/us	$3.3	$16.5	Source10/26/2026
	Anthropic	Via OpenRouteranthropic	Lowest listed price: $3	Lowest listed price: $15	Source10/26/2026
	Azure	Via OpenRouterazure/global	Lowest listed price: $3	Lowest listed price: $15	Source10/26/2026
	Claude Platform on AWS	Via OpenRouterclaude-on-aws	Lowest listed price: $3	Lowest listed price: $15	Source10/26/2026
	Google	Via OpenRoutergoogle-vertex/europe	$3.3	$16.5	Source10/26/2026
	Google	Via OpenRoutergoogle-vertex/global	Lowest listed price: $3	Lowest listed price: $15	Source10/26/2026
	Google	Via OpenRoutergoogle-vertex/us-east5	$3.3	$16.5	Source10/26/2026
Gemini 4 Argon	Google DeepMind	Direct from developerStandard API	Lowest listed price: $2	Lowest listed price: $10	Source10/25/2026

Benchmark index

Benchmark index compared

The index combines independent benchmarks on a scale from 0 to 100. A lead only counts when a model comes first in at least 95% of 200 recalculations with randomly redrawn test families. Otherwise both count as level.

Open the AI leaderboard

Claude Sonnet 4.6

Overall index

22.0

Gemini 4 Argon

Overall index

92.6

Gemini 4 Argon leads in 8 of 8 shared areas.

Area	Claude Sonnet 4.6	Gemini 4 Argon
Coding	17.5	92.4
Reasoning	22.8	91.6
Knowledge	25.0	93.6
Finance	44.6	94.6
Legal	28.0	94.9
Health	13.7	92.8
Productivity	29.8	90.6
Education	27.4	93.6

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 Sonnet 4.6Gemini 4 Argon

Code MigrationOverall. Higher is better. Test setup not documented as identical

Claude Sonnet 4.639.892 %

Gemini 4 Argon68.173 %

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

Claude Sonnet 4.660.154 %

Gemini 4 Argon75.244 %

Finance Agent (v2)Overall. Higher is better. Test setup not documented as identical

Claude Sonnet 4.651.035 %

Gemini 4 Argon65.401 %

Harvey's Legal Agent BenchmarkOverall · Task fully resolved. Higher is better. Test setup not documented as identical

Claude Sonnet 4.65 %

Gemini 4 Argon19.583 %

Legal Research BenchOverall · All-pass. Higher is better. Test setup not documented as identical

Claude Sonnet 4.638.462 %

Gemini 4 Argon54.808 %

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

Claude Sonnet 4.682.12 %

Gemini 4 Argon88.299 %

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

Claude Sonnet 4.60.5 %

Gemini 4 Argon2.5 %

Public Benefits Bench v1.1Overall. Higher is better. Test setup not documented as identical

Claude Sonnet 4.662.449 %

Gemini 4 Argon69.756 %

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

Claude Sonnet 4.646.582 %

Gemini 4 Argon53.645 %

Tax Agent BenchOverall. Higher is better. Test setup not documented as identical

Claude Sonnet 4.625.84 %

Gemini 4 Argon44.56 %

Vibe Code Bench v1.1Overall. Higher is better. Test setup not documented as identical

Claude Sonnet 4.651.476 %

Gemini 4 Argon91.906 %

Code MigrationCLI. Higher is better. Test setup not documented as identical

Claude Sonnet 4.630.333 %

Gemini 4 Argon67.564 %

Key to the marks:better valuebetter, but not conclusivetie

Benchmark scores for Claude Sonnet 4.6 and Gemini 4 Argon
Benchmark and task	Claude Sonnet 4.6	Gemini 4 Argon	Source
Code MigrationOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	39.892 %	Higher measured value68.173 %	Vals AI Source details Data as of: 10/12/2026
EMBOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	60.154 %	Higher measured value75.244 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)Overall Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	51.035 %	Higher measured value65.401 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkOverall · Task fully resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: task resolution rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	5 %	Higher measured value19.583 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchOverall · All-pass Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: all-pass rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	38.462 %	Higher measured value54.808 %	Vals AI Source details Data as of: 10/12/2026
LegalBenchOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	82.12 %	Higher measured value88.299 %	Vals AI Source details Data as of: 10/13/2026
ProgramBenchOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: fully resolved rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	0.5 %	Higher measured value2.5 %	Vals AI Source details Data as of: 10/12/2026
Public Benefits Bench v1.1Overall Test details Test setup not documented as identicalNo direct winnerVersion: 1.1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	62.449 %	Higher measured value69.756 %	Vals AI Source details Data as of: 10/12/2026
SAGEOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 30,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	46.582 %	Higher measured value53.645 %	Vals AI Source details Data as of: 10/08/2026
Tax Agent BenchOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	25.84 %	Higher measured value44.56 %	Vals AI Source details Data as of: 10/12/2026
Vibe Code Bench v1.1Overall Test details Test setup not documented as identicalNo direct winnerVersion: 1.1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Harness: OpenHands, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Harness: OpenHands, Temperature: 1, Output limit: 262,144 tokens	51.476 %	Higher measured value91.906 %	Vals AI Source details Data as of: 10/12/2026
Code MigrationCLI Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	30.333 %	Higher measured value67.564 %	Vals AI Source details Data as of: 10/12/2026
EMBComps Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	61.52 %	Higher measured value82.979 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)Adjustments Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	48.92 %	Higher measured value60.527 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkAntitrust Competition · Criteria passed Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: criteria pass rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	87.319 %	Higher measured value94.203 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchAdministrative / Regulatory · All-pass Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: all-pass rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	43.939 %	Higher measured value68.182 %	Vals AI Source details Data as of: 10/12/2026
LegalBenchConclusion Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	87.991 %	Higher measured value90.847 %	Vals AI Source details Data as of: 10/13/2026
ProgramBenchAlmost Resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: almost-resolved rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	2 %	Higher measured value41 %	Vals AI Source details Data as of: 10/12/2026
SAGEAutomata Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 30,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	35.318 %	Higher measured value45.635 %	Vals AI Source details Data as of: 10/08/2026
Tax Agent BenchControversy & Precedence Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	10 %	Higher measured value20 %	Vals AI Source details Data as of: 10/12/2026
Code MigrationCOBOL Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	68.571 %	Higher measured value70 %	Vals AI Source details Data as of: 10/12/2026
EMBDataroom Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	78.493 %	Higher measured value85.109 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)All-Pass Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	38.795 %	Higher measured value55.789 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkAntitrust Competition · Task fully resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: task resolution rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	0 %	Higher measured value20 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchAdministrative / Regulatory · Weighted partial credit Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: weighted partial-credit scoreScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	86.797 %	Higher measured value92.945 %	Vals AI Source details Data as of: 10/12/2026
LegalBenchInterpretation Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	82.469 %	Higher measured value84.097 %	Vals AI Source details Data as of: 10/13/2026
ProgramBenchFully Resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: fully resolved rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	0.5 %	Higher measured value2.5 %	Vals AI Source details Data as of: 10/12/2026
SAGECalculus Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Temperature: 1, Output limit: 30,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	60.494 %	Higher measured value84.877 %	Vals AI Source details Data as of: 10/08/2026
Tax Agent BenchControversy & Precedence Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	57.949 %	Higher measured value63.603 %	Vals AI Source details Data as of: 10/12/2026
Code MigrationCode Quality Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: mean reviewer code-quality ratingScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	Higher measured value3.997 / 5	3.574 / 5	Vals AI Source details Data as of: 10/12/2026
EMBDCF Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	38.28 %	Higher measured value65.719 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)Comparables Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	41.003 %	Higher measured value50.956 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkArbitration International Dispute Resolution · Criteria passed Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: criteria pass rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	85.663 %	Higher measured value94.265 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchBusiness & Commercial · All-pass Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: all-pass rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	34.884 %	Higher measured value46.512 %	Vals AI Source details Data as of: 10/12/2026
LegalBenchIssue Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	86.574 %	Higher measured value92.941 %	Vals AI Source details Data as of: 10/13/2026
ProgramBenchRaw Pass Rate Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: raw test pass rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	59.103 %	Higher measured value83.715 %	Vals AI Source details Data as of: 10/12/2026
SAGELinear Algebra Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 30,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	63.158 %	Higher measured value74.031 %	Vals AI Source details Data as of: 10/08/2026
Tax Agent BenchCurrent & Temporal Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	33.151 %	Higher measured value66.667 %	Vals AI Source details Data as of: 10/12/2026
EMBLBO Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	52.536 %	Higher measured value68.543 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)Disclosure Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	65.77 %	Higher measured value74.496 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkArbitration International Dispute Resolution · Task fully resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: task resolution rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	No direct winner0 %	No direct winner0 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchBusiness & Commercial · Weighted partial credit Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: weighted partial-credit scoreScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	87.972 %	Higher measured value91.87 %	Vals AI Source details Data as of: 10/12/2026
LegalBenchRhetoric Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	79.469 %	Higher measured value82.838 %	Vals AI Source details Data as of: 10/13/2026
SAGEPartial Differential Equations Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 30,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	No direct winner41.27 %	No direct winner41.27 %	Vals AI Source details Data as of: 10/08/2026
Tax Agent BenchCurrent & Temporal Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	66.078 %	Higher measured value84.637 %	Vals AI Source details Data as of: 10/12/2026
EMBM&A Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	70.503 %	Higher measured value80.97 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)Earnings Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	65.119 %	Higher measured value84.807 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkBanking Finance · Criteria passed Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: criteria pass rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	91.45 %	Higher measured value95.911 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchCivil Litigation · All-pass Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: all-pass rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	29.63 %	Higher measured value51.852 %	Vals AI Source details Data as of: 10/12/2026
LegalBenchRule Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	74.097 %	Higher measured value90.774 %	Vals AI Source details Data as of: 10/13/2026
Tax Agent BenchFact-Pattern Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	23.256 %	Higher measured value39.535 %	Vals AI Source details Data as of: 10/12/2026
EMBMisc Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	61.691 %	Higher measured value73.951 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)Financial Modeling Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	17.561 %	Higher measured value29.803 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkBanking Finance · Task fully resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: task resolution rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	No direct winner0 %	No direct winner0 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchCivil Litigation · Weighted partial credit Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: weighted partial-credit scoreScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	87.434 %	Higher measured value95.082 %	Vals AI Source details Data as of: 10/12/2026
Tax Agent BenchFact-Pattern Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	56.703 %	Higher measured value76.678 %	Vals AI Source details Data as of: 10/12/2026
EMBOperating Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	58.056 %	Higher measured value69.433 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)General Qualitative Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	71.557 %	Higher measured value76.963 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkBankruptcy Restructuring · Criteria passed Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: criteria pass rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	85.813 %	Higher measured value91.349 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchConstitutional / Civil Rights · All-pass Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: all-pass rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	34.211 %	Higher measured value47.368 %	Vals AI Source details Data as of: 10/12/2026
Tax Agent BenchForms & Filings Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	6.417 %	Higher measured value26.667 %	Vals AI Source details Data as of: 10/12/2026
EMBScratch Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	64.751 %	Higher measured value70.798 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)General Quantitative Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	72.004 %	Higher measured value81.515 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkBankruptcy Restructuring · Task fully resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: task resolution rateScoring: Higher is betterClaude Sonnet 4.6: Compute: max, Temperature: 1, Output limit: 128,000 tokens Gemini 4 Argon: Reasoning: high, Temperature: 1, Output limit: 262,144 tokens	No direct winner0 %	No direct winner0 %	Vals AI Source details Data as of: 10/12/2026
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: 43b8c5c46830

Claude Sonnet 4.6

Gemini 4 Argon

Unavailable in this round

Earlier tests

Pelican on a bicycle

A community classic for free-form SVG drawing.

Claude Sonnet 4.6

The response reached the token limit. No complete recording is available.

Reasoning (requested): high

Current attempt

Run date: Oct 6, 2026
API provider: openrouter
Requested API model: anthropic/claude-sonnet-4.6
API model reported in response: anthropic/claude-sonnet-4.6
Reasoning setting: high
Pinned endpoint: Anthropic | anthropic/claude-4.6-sonnet-20260217
Temperature: Provider default
Token limit including reasoning: 8,192 tokens
Test protocol: community-visual-tests-v1
Technical checks: Failed
Response time: 106 s

Not yet visually reviewed. A successful recording does not confirm correct physics or full compliance with the prompt.

Earlier attempts (2)

Oct 2, 2026API request failedReasoning setting: high
Oct 1, 2026API request failedReasoning setting: high

Gemini 4 Argon

Not tested yet

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 Sonnet 4.6 and Gemini 4 Argon with other leading models using the same data and benchmark logic.

View the complete LLM comparison

Claude Sonnet 4.6 vs. Gemini 4 Argon

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General specifications

API pricing compared

Benchmark index compared

Shared benchmarks

Capability profile from matched benchmarks

Our tests

SVG short test

Claude Sonnet 4.6

Gemini 4 Argon

Pelican on a bicycle

Winning one benchmark is not an overall verdict

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