Model comparison
Gemini 2.5 Flash vs Mistral Small 3.2
Gemini 2.5 Flash is the stronger model overall, scoring 39.3 to 31.2 on the Noometry Index. Mistral Small 3.2 costs 6.4× less per token, which makes it the better buy when Gemini 2.5 Flash's lead doesn't matter for your workload.
Last verified . 4 shared benchmarks.
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Mistral AISummary
- They share 4 benchmarks with published results for both. Gemini 2.5 Flash scores higher in 4 categories and Mistral Small 3.2 in 0 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where Gemini 2.5 Flash leads 39.9 to 26.3.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 73.1% for Gemini 2.5 Flash and 30.3% for Mistral Small 3.2.
- Mistral Small 3.2 is cheaper at $0.0938 / $0.25 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 256K.
- Mistral Small 3.2 has downloadable open weights; the other is API-only.
Side by side
| Gemini 2.5 Flash | Mistral Small 3.2 | |
|---|---|---|
| Provider | Mistral AI | |
| Noometry Index | 39.3 | 31.2 |
| Released | 2025-04-17 | 2025-06-20 |
| Weights | Proprietary | Open |
| Context window | 1.05M | 256K |
| Max output | 66K | 16K |
| Input $ / M tokens | $0.30 | $0.0938 |
| Output $ / M tokens | $2.50 | $0.25 |
| Results tracked | 54 | 6 |
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Category by category
Coding Not comparable
Gemini 2.5 Flash: 35.8 (#220), Mistral Small 3.2: —
| Benchmark | Gemini 2.5 Flash | Mistral Small 3.2 |
|---|---|---|
| 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 Small 3.2: —
| Benchmark | Gemini 2.5 Flash | Mistral Small 3.2 |
|---|---|---|
| Terminal-Bench | 17.1% | — |
| Berkeley Function Calling Leaderboard | 56.2% | — |
| TheAgentCompany | 41.1% | — |
| BALROG | 33.5% | — |
| Vending-Bench 2 | 548.84 | — |
Reasoning Too close to call
Gemini 2.5 Flash: 18.1 (#286), Mistral Small 3.2: 18.1 (#287)
| Benchmark | Gemini 2.5 Flash | Mistral Small 3.2 |
|---|---|---|
| Kagi LLM Benchmark | 56.8% | 40.4% |
| Epoch Capabilities Index | 143.03 | 131.74 |
| ARC-AGI-2 | 2.5% | — |
| SimpleBench | 41.2% | — |
| ARC-AGI-1 | 33.3% | — |
| CritPt | 1.1% | — |
| Chess Puzzles | — | 1% |
| EnigmaEval | 2.7% | — |
| LMArena Hard Prompts | 1422 | — |
| DTBench | 76.5% | — |
| LMCA | 27.5% | — |
| ForecastBench | 60.6 | — |
Math Gemini 2.5 Flash leads
Gemini 2.5 Flash: 39.9 (#98), Mistral Small 3.2: 26.3 (#260)
| Benchmark | Gemini 2.5 Flash | Mistral Small 3.2 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 73.1% | 30.3% |
| Omni-MATH | 38.5% | — |
| LMArena Math | 1415 | — |
| FrontierMath (Feb 2025 set) | 4.8% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Gemini 2.5 Flash leads
Gemini 2.5 Flash: 36.4 (#168), Mistral Small 3.2: 26.7 (#256)
| Benchmark | Gemini 2.5 Flash | Mistral Small 3.2 |
|---|---|---|
| GPQA Diamond | — | 49.1% |
| 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 Small 3.2: —
| Benchmark | Gemini 2.5 Flash | Mistral Small 3.2 |
|---|---|---|
| LMArena Vision | 1253 | — |
| GeoBench | 76% | — |
| VPCT | 46.2% | — |
| SpatialViz-Bench | 36.9% | — |
Multilingual Not comparable
Gemini 2.5 Flash: 52.3 (#88), Mistral Small 3.2: —
| Benchmark | Gemini 2.5 Flash | Mistral Small 3.2 |
|---|---|---|
| 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 Small 3.2: —
| Benchmark | Gemini 2.5 Flash | Mistral Small 3.2 |
|---|---|---|
| IFEval | 89.8% | — |
| LMArena Instruction Following | 1405 | — |
Long Context Not comparable
Gemini 2.5 Flash: 47.5 (#17), Mistral Small 3.2: —
| Benchmark | Gemini 2.5 Flash | Mistral Small 3.2 |
|---|---|---|
| Fiction.LiveBench | 77.8% | — |
| LMArena Longer Query | 1419 | — |
Writing & Preference Gemini 2.5 Flash leads
Gemini 2.5 Flash: 53.8 (#157), Mistral Small 3.2: 45.0 (#224)
| Benchmark | Gemini 2.5 Flash | Mistral Small 3.2 |
|---|---|---|
| EQ-Bench Creative Writing | 1137 | 1255 |
| 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 Small 3.2?
Gemini 2.5 Flash is the stronger model overall, scoring 39.3 to 31.2 on the Noometry Index. Mistral Small 3.2 costs 6.4× less per token, which makes it the better buy when Gemini 2.5 Flash's lead doesn't matter for your workload.
Which is cheaper, Gemini 2.5 Flash or Mistral Small 3.2?
Mistral Small 3.2 is cheaper. It lists at $0.0938 per million input tokens and $0.25 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 256K.
How many benchmarks do Gemini 2.5 Flash and Mistral Small 3.2 share?
4 benchmarks have published results for both models. Gemini 2.5 Flash has 54 scored results on Noometry and Mistral Small 3.2 has 6.