Model comparison
Gemini 2.5 Flash vs Mistral Medium 3.1
Gemini 2.5 Flash is the stronger model overall, scoring 39.3 to 31.9 on the Noometry Index.
Last verified . 1 shared benchmarks.
Google
Mistral AISummary
- They share 1 benchmark with published results for both. Gemini 2.5 Flash scores higher in 1 category and Mistral Medium 3.1 in 1 category; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 2.5 Flash leads 18.1 to 10.6.
- Mistral Medium 3.1 is cheaper at $0.40 / $2 per million input/output tokens, against $0.30 / $2.50 for Gemini 2.5 Flash.
- Gemini 2.5 Flash accepts more context: 1.05M tokens versus 131K.
Side by side
| Gemini 2.5 Flash | Mistral Medium 3.1 | |
|---|---|---|
| Provider | Mistral AI | |
| Noometry Index | 39.3 | 31.9 |
| Released | 2025-04-17 | — |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | 131K |
| Max output | 66K | 105K |
| Input $ / M tokens | $0.30 | $0.40 |
| Output $ / M tokens | $2.50 | $2 |
| Results tracked | 54 | 3 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Not comparable
Gemini 2.5 Flash: 35.8 (#220), Mistral Medium 3.1: —
| Benchmark | Gemini 2.5 Flash | Mistral Medium 3.1 |
|---|---|---|
| SWE-bench Verified (bash only) | 28.7% | — |
| Aider Polyglot | 55.1% | — |
| WeirdML | 41.9% | — |
| LMArena Coding | 1424 | — |
| ALE-Bench | 661.88 | — |
Agentic & Tool Use Not comparable
Gemini 2.5 Flash: 30.8 (#74), Mistral Medium 3.1: —
| Benchmark | Gemini 2.5 Flash | Mistral Medium 3.1 |
|---|---|---|
| Terminal-Bench | 17.1% | — |
| Berkeley Function Calling Leaderboard | 56.2% | — |
| TheAgentCompany | 41.1% | — |
| BALROG | 33.5% | — |
| Vending-Bench 2 | 548.84 | — |
Reasoning Gemini 2.5 Flash leads
Gemini 2.5 Flash: 18.1 (#286), Mistral Medium 3.1: 10.6 (#341)
| Benchmark | Gemini 2.5 Flash | Mistral Medium 3.1 |
|---|---|---|
| ARC-AGI-2 | 2.5% | — |
| SimpleBench | 41.2% | — |
| Kagi LLM Benchmark | 56.8% | — |
| NYT Connections (extended) | — | 6.5% |
| ARC-AGI-1 | 33.3% | — |
| CritPt | 1.1% | — |
| EnigmaEval | 2.7% | — |
| Thematic Generalization | — | 20.3% |
| LMArena Hard Prompts | 1422 | — |
| DTBench | 76.5% | — |
| LMCA | 27.5% | — |
| Epoch Capabilities Index | 143.03 | — |
| ForecastBench | 60.6 | — |
Math Not comparable
Gemini 2.5 Flash: 39.9 (#98), Mistral Medium 3.1: —
| Benchmark | Gemini 2.5 Flash | Mistral Medium 3.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 73.1% | — |
| Omni-MATH | 38.5% | — |
| LMArena Math | 1415 | — |
| FrontierMath (Feb 2025 set) | 4.8% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Not comparable
Gemini 2.5 Flash: 36.4 (#168), Mistral Medium 3.1: —
| Benchmark | Gemini 2.5 Flash | Mistral Medium 3.1 |
|---|---|---|
| Humanity's Last Exam | 12.1% | — |
| MMLU-Pro | 63.9% | — |
| Confabulations | 16.8% | — |
| Vectara Hallucination Rate | 7.8% | — |
| GPQA (HELM) | 39% | — |
| LMArena Expert | 1426 | — |
Multimodal Not comparable
Gemini 2.5 Flash: 41.8 (#32), Mistral Medium 3.1: —
| Benchmark | Gemini 2.5 Flash | Mistral Medium 3.1 |
|---|---|---|
| LMArena Vision | 1253 | — |
| GeoBench | 76% | — |
| VPCT | 46.2% | — |
| SpatialViz-Bench | 36.9% | — |
Multilingual Not comparable
Gemini 2.5 Flash: 52.3 (#88), Mistral Medium 3.1: —
| Benchmark | Gemini 2.5 Flash | Mistral Medium 3.1 |
|---|---|---|
| LMArena Non-English | 1409 | — |
| LMArena Chinese | 1450 | — |
| LMArena French | 1433 | — |
| LMArena German | 1418 | — |
| LMArena Japanese | 1405 | — |
| LMArena Korean | 1385 | — |
| LMArena Russian | 1415 | — |
| LMArena Spanish | 1421 | — |
Instruction Following Not comparable
Gemini 2.5 Flash: 75.7 (#54), Mistral Medium 3.1: —
| Benchmark | Gemini 2.5 Flash | Mistral Medium 3.1 |
|---|---|---|
| IFEval | 89.8% | — |
| LMArena Instruction Following | 1405 | — |
Long Context Not comparable
Gemini 2.5 Flash: 47.5 (#17), Mistral Medium 3.1: —
| Benchmark | Gemini 2.5 Flash | Mistral Medium 3.1 |
|---|---|---|
| Fiction.LiveBench | 77.8% | — |
| LMArena Longer Query | 1419 | — |
Writing & Preference Mistral Medium 3.1 leads
Gemini 2.5 Flash: 53.8 (#157), Mistral Medium 3.1: 55.5 (#145)
| Benchmark | Gemini 2.5 Flash | Mistral Medium 3.1 |
|---|---|---|
| EQ-Bench Creative Writing | 1137 | 1476 |
| LMArena Text | 1417 | — |
| LMArena Creative Writing | 1400 | — |
| Short-Story Creative Writing | 76.5% | — |
| WildBench | 81.7% | — |
| LMArena Multi-Turn | 1408 | — |
Frequently asked questions
Is Gemini 2.5 Flash better than Mistral Medium 3.1?
Gemini 2.5 Flash is the stronger model overall, scoring 39.3 to 31.9 on the Noometry Index.
Which is cheaper, Gemini 2.5 Flash or Mistral Medium 3.1?
Mistral Medium 3.1 is cheaper. It lists at $0.40 per million input tokens and $2 per million output tokens; Gemini 2.5 Flash lists at $0.30 and $2.50.
Which has the bigger context window?
Gemini 2.5 Flash does, with 1.05M tokens against 131K.
How many benchmarks do Gemini 2.5 Flash and Mistral Medium 3.1 share?
1 benchmark has published results for both models. Gemini 2.5 Flash has 54 scored results on Noometry and Mistral Medium 3.1 has 3.