Head-to-head comparison
Mistral Medium 3.5 vs. MiMo-V2.5
Compare published benchmark results from matching versions and cohorts, API pricing, and technical specifications. Any documented test setup differences remain visible.
- shared result series
- 28
- distinct benchmarks
- 1
- latest retrieval
- 2026-09-04
Change model selection
Specifications
General specifications
Release date, availability, context window, architecture, and published parameter counts at a glance. Undisclosed details remain marked as unavailable.
| Attribute | Mistral Medium 3.5 | MiMo-V2.5 |
|---|---|---|
| Provider | Mistral AI | Xiaomi |
| Released | Apr 28, 2026 | Apr 23, 2026 |
| Availability | Active | Open Source |
| Model type | Open Weights | Open Weights |
| Parameters | Not published | Not published |
| Architecture | Not published | Mixture of Experts |
| Context window | 256,000 tokens | 1,000,000 tokens |
| Knowledge cutoff | Not published | 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.
| Price type | Mistral Medium 3.5 | MiMo-V2.5 |
|---|---|---|
| API input | $1.5 | $0.14 |
| API output | $7.5 | $0.28 |
| Cache read | Not listed | $0. |
| Cache write (5 min.) | Not listed | Not listed |
| Cache write (1 hr.) | Not listed | Not listed |
| Price verified | 07/30/2026 Source | 07/31/2026 Source |
Mistral Medium 3.5MiMo-V2.5
API inputUSD per 1M tokens, base tier
Mistral Medium 3.5$1.5
MiMo-V2.5Lower price$0.14
API outputUSD per 1M tokens, base tier
Mistral Medium 3.5$7.5
MiMo-V2.5Lower price$0.28
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.
| Model | Provider | Purchase route and tariff | Input per 1M tokens | Output per 1M tokens | Source |
|---|---|---|---|---|---|
| Mistral Medium 3.5 | Mistral AI | Direct from developerStandard API | Lowest listed price: $1.5 | Lowest listed price: $7.5 | Source07/30/2026 |
| Mistral | Via OpenRoutermistral | Lowest listed price: $1.5 | Lowest listed price: $7.5 | Source09/06/2026 | |
| Mistral | Via OpenRoutermistral/eu | $1.65 | $8.25 | Source09/06/2026 | |
| Mistral | Via OpenRoutermistral/zdr | Lowest listed price: $1.5 | Lowest listed price: $7.5 | Source09/06/2026 | |
| MiMo-V2.5 | Xiaomi | Direct from developerStandard API | $0.14 | $0.28 | Source07/31/2026 |
| DeepInfra | Via OpenRouterdeepinfra/fp8 | $0.13 | $0.65 | Source09/06/2026 | |
| GMICloud | Via OpenRoutergmicloud/fp8 | Lowest listed price: $0.119 | Lowest listed price: $0.238 | Source09/06/2026 | |
| Novita | Via OpenRouternovita/fp8 | $0.168 | $0.336 | Source09/06/2026 | |
| StreamLake | Via OpenRouterstreamlake | $0.168 | $0.336 | Source09/06/2026 | |
| Xiaomi | Via OpenRouterxiaomi/fp8 | $0.14 | $0.28 | Source09/06/2026 |
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.
Mistral Medium 3.5
MiMo-V2.5
Coding: 99.2 / 100 (1 benchmark family)
Reasoning: 98.5 / 100 (1 benchmark family)
Mathematics: 99.2 / 100 (1 benchmark family)
Knowledge: 98.5 / 100 (1 benchmark family)
Finance: 99.3 / 100 (1 benchmark family)
Legal: 100 / 99.3 (1 benchmark family)
Health: 98.3 / 100 (1 benchmark family)
General: 99.3 / 99.8 (1 benchmark family)
28 matched rows from 1 benchmark families were considered. The radar shows 8 of 8 comparable categories.
Mistral Medium 3.5MiMo-V2.5
LMArena Text, Style ControlOverall. Higher is better. No documented setup difference
Mistral Medium 3.51,426.98
MiMo-V2.5No clear lead1,433.798
LMArena Text, Style ControlBusiness, management and finance. Higher is better. No documented setup difference
Mistral Medium 3.51,431.113
MiMo-V2.5No clear lead1,441.542
LMArena Text, Style ControlChinese. Higher is better. No documented setup difference
Mistral Medium 3.51,448.299
MiMo-V2.5No clear lead1,483.45
LMArena Text, Style ControlCoding. Higher is better. No documented setup difference
Mistral Medium 3.51,478.845
MiMo-V2.5No clear lead1,491.02
LMArena Text, Style ControlCreative writing. Higher is better. No documented setup difference
Mistral Medium 3.5No clear lead1,396.971
MiMo-V2.51,392.817
LMArena Text, Style ControlEnglish. Higher is better. No documented setup difference
Mistral Medium 3.51,444.656
MiMo-V2.5No clear lead1,452.388
LMArena Text, Style ControlEntertainment, sports and media. Higher is better. No documented setup difference
Mistral Medium 3.51,396.875
MiMo-V2.5No clear lead1,401.59
LMArena Text, Style ControlExcluding ties. Higher is better. No documented setup difference
Mistral Medium 3.51,421.17
MiMo-V2.5No clear lead1,427.481
LMArena Text, Style ControlExpert prompts. Higher is better. No documented setup difference
Mistral Medium 3.51,438.278
MiMo-V2.5Winner1,474.263
LMArena Text, Style ControlFrench. Higher is better. No documented setup difference
Mistral Medium 3.51,436.08
MiMo-V2.5No clear lead1,454.676
LMArena Text, Style ControlGerman. Higher is better. No documented setup difference
Mistral Medium 3.5No clear lead1,442.607
MiMo-V2.51,421.467
LMArena Text, Style ControlHard prompts. Higher is better. No documented setup difference
Mistral Medium 3.51,445.592
MiMo-V2.5Winner1,461.799
Key to the marks:better valuebetter, but not conclusivetie
| Benchmark and task | Mistral Medium 3.5 | MiMo-V2.5 | Source |
|---|---|---|---|
LMArena Text, Style ControlOverallTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 11,017 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 44,540 anonymous pairwise votes. | 1,426.98 95% confidence interval: ±6.556The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,433.798 95% confidence interval: ±4.342The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlBusiness, management and financeTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 2,148 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 9,127 anonymous pairwise votes. | 1,431.113 95% confidence interval: ±13.17The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,441.542 95% confidence interval: ±7.42The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlChineseTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 500 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 2,140 anonymous pairwise votes. | 1,448.299 95% confidence interval: ±26.61The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,483.45 95% confidence interval: ±13.352The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlCodingTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 3,079 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 12,854 anonymous pairwise votes. | 1,478.845 95% confidence interval: ±11.157The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,491.02 95% confidence interval: ±6.676The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlCreative writingTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 1,862 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 7,343 anonymous pairwise votes. | No clear lead1,396.971 95% confidence interval: ±14.389The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | 1,392.817 95% confidence interval: ±8.004The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlEnglishTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 5,299 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 20,213 anonymous pairwise votes. | 1,444.656 95% confidence interval: ±8.682The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,452.388 95% confidence interval: ±5.607The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlEntertainment, sports and mediaTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 2,453 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 9,698 anonymous pairwise votes. | 1,396.875 95% confidence interval: ±12.491The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,401.59 95% confidence interval: ±7.383The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlExcluding tiesTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 8,299 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 34,136 anonymous pairwise votes. | 1,421.17 95% confidence interval: ±8.686The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,427.481 95% confidence interval: ±5.599The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlExpert promptsTest detailsNo documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 1,110 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 4,401 anonymous pairwise votes. | 1,438.278 95% confidence interval: ±17.831The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | Winner1,474.263 95% confidence interval: ±9.645The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlFrenchTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 438 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 1,754 anonymous pairwise votes. | 1,436.08 95% confidence interval: ±30.551The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,454.676 95% confidence interval: ±16.333The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlGermanTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 170 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 759 anonymous pairwise votes. | No clear lead1,442.607 95% confidence interval: ±44.317The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | 1,421.467 95% confidence interval: ±22.574The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlHard promptsTest detailsNo documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 7,154 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 29,811 anonymous pairwise votes. | 1,445.592 95% confidence interval: ±7.857The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | Winner1,461.799 95% confidence interval: ±5.088The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlHard prompts, EnglishTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 3,629 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 14,215 anonymous pairwise votes. | 1,458.246 95% confidence interval: ±10.39The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,471.581 95% confidence interval: ±6.423The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlInstruction followingTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 3,561 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 14,987 anonymous pairwise votes. | 1,422.491 95% confidence interval: ±10.335The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,431.463 95% confidence interval: ±6.27The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlKoreanTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 178 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 784 anonymous pairwise votes. | No clear lead1,394.42 95% confidence interval: ±44.572The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | 1,373.664 95% confidence interval: ±22.433The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlLegal and governmentTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 839 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 3,566 anonymous pairwise votes. | No clear lead1,437.785 95% confidence interval: ±21.302The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | 1,427.361 95% confidence interval: ±10.778The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlLife, physical and social scienceTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 1,823 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 7,207 anonymous pairwise votes. | 1,433.494 95% confidence interval: ±14.359The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,452.891 95% confidence interval: ±7.882The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlLonger queriesTest detailsNo documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 4,661 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 19,717 anonymous pairwise votes. | 1,430.723 95% confidence interval: ±9.428The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | Winner1,452.091 95% confidence interval: ±5.953The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlMathTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 539 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 2,327 anonymous pairwise votes. | 1,429.582 95% confidence interval: ±24.872The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,440.393 95% confidence interval: ±12.473The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlMathematical professionsTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 597 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 2,441 anonymous pairwise votes. | 1,442.192 95% confidence interval: ±23.932The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,454.25 95% confidence interval: ±12.776The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlMedicine and healthcareTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 802 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 3,164 anonymous pairwise votes. | 1,423.47 95% confidence interval: ±21.791The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,448.067 95% confidence interval: ±11.459The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlMulti-turnTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 1,803 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 7,901 anonymous pairwise votes. | 1,431.302 95% confidence interval: ±14.433The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,450.214 95% confidence interval: ±7.779The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlNon-EnglishTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 5,718 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 24,326 anonymous pairwise votes. | 1,406.687 95% confidence interval: ±8.36The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,411.361 95% confidence interval: ±5.294The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlPolishTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 226 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 929 anonymous pairwise votes. | 1,407.955 95% confidence interval: ±38.858The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,420.076 95% confidence interval: ±19.427The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlRussianTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 1,143 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 4,772 anonymous pairwise votes. | No clear lead1,415.692 95% confidence interval: ±17.832The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | 1,404.83 95% confidence interval: ±9.316The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlSoftware and IT servicesTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 4,320 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 18,163 anonymous pairwise votes. | 1,470.76 95% confidence interval: ±9.541The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,479.843 95% confidence interval: ±5.913The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlSpanishTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 377 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 1,414 anonymous pairwise votes. | 1,386.845 95% confidence interval: ±32.418The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,411.308 95% confidence interval: ±17.191The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
LMArena Text, Style ControlWriting, literature and languageTest detailsNo documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterMistral Medium 3.5: Snapshot: mistral-medium-3.5, Harness: Arena text, style control MiMo-V2.5: Snapshot: mimo-v2.5, Harness: Arena text, style controlMistral Medium 3.5: Style-controlled Arena rating from 2,734 anonymous pairwise votes.MiMo-V2.5: Style-controlled Arena rating from 10,784 anonymous pairwise votes. | 1,405.944 95% confidence interval: ±11.74The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | No clear lead1,411.069 95% confidence interval: ±6.937The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result. | LMArenaSource detailsData as of: 09/01/2026 |
Key to the marks:better valuebetter, but not conclusivetie | |||
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