Model comparison
Devstral Small 2505 vs Gemini 2.5 Flash-Lite
Gemini 2.5 Flash-Lite is the stronger model overall, scoring 37.0 to 34.3 on the Noometry Index.
Last verified . 1 shared benchmarks.
Mistral AI
GoogleSummary
- They share 1 benchmark with published results for both. Devstral Small 2505 scores higher in 1 category and Gemini 2.5 Flash-Lite in 1 category; one gap is clear of the uncertainty.
- Devstral Small 2505 is cheaper at $0.10 / $0.30 per million input/output tokens, against $0.10 / $0.40 for Gemini 2.5 Flash-Lite.
- Gemini 2.5 Flash-Lite accepts more context: 1.05M tokens versus 128K.
- Devstral Small 2505 has downloadable open weights; the other is API-only.
Side by side
| Devstral Small 2505 | Gemini 2.5 Flash-Lite | |
|---|---|---|
| Provider | Mistral AI | |
| Noometry Index | 34.3 | 37.0 |
| Released | 2025-05-07 | 2025-06-17 |
| Weights | Open | Proprietary |
| Context window | 128K | 1.05M |
| Max output | 128K | 66K |
| Input $ / M tokens | $0.10 | $0.10 |
| Output $ / M tokens | $0.30 | $0.40 |
| Results tracked | 4 | 33 |
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Category by category
Coding Too close to call
Devstral Small 2505: 38.9 (#166), Gemini 2.5 Flash-Lite: 38.5 (#173)
| Benchmark | Devstral Small 2505 | Gemini 2.5 Flash-Lite |
|---|---|---|
| SWE-bench Verified (bash only) | 56.4% | — |
| SciCode | 28.8% | — |
| WeirdML | — | 35.2% |
| LMArena Coding | — | 1373 |
| ALE-Bench | — | 325.9 |
Agentic & Tool Use Not comparable
Devstral Small 2505: —, Gemini 2.5 Flash-Lite: 28.0 (#96)
| Benchmark | Devstral Small 2505 | Gemini 2.5 Flash-Lite |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 36.9% |
Reasoning Gemini 2.5 Flash-Lite leads
Devstral Small 2505: 19.7 (#252), Gemini 2.5 Flash-Lite: 22.2 (#205)
| Benchmark | Devstral Small 2505 | Gemini 2.5 Flash-Lite |
|---|---|---|
| Kagi LLM Benchmark | 37.7% | 40.5% |
| CritPt | 0% | — |
| LMArena Hard Prompts | — | 1377 |
| DTBench | — | 62.8% |
| LMCA | — | 18.1% |
| Epoch Capabilities Index | — | 133.94 |
Math Not comparable
Devstral Small 2505: —, Gemini 2.5 Flash-Lite: 38.0 (#144)
| Benchmark | Devstral Small 2505 | Gemini 2.5 Flash-Lite |
|---|---|---|
| Omni-MATH | — | 48% |
| LMArena Math | — | 1373 |
Knowledge Not comparable
Devstral Small 2505: —, Gemini 2.5 Flash-Lite: 32.5 (#210)
| Benchmark | Devstral Small 2505 | Gemini 2.5 Flash-Lite |
|---|---|---|
| MMLU-Pro | — | 53.7% |
| Vectara Hallucination Rate | — | 3.3% |
| GPQA (HELM) | — | 30.9% |
| LMArena Expert | — | 1373 |
Multimodal Not comparable
Devstral Small 2505: —, Gemini 2.5 Flash-Lite: 29.1 (#114)
| Benchmark | Devstral Small 2505 | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Vision | — | 1198 |
| VPCT | — | 30% |
Multilingual Not comparable
Devstral Small 2505: —, Gemini 2.5 Flash-Lite: 49.3 (#134)
| Benchmark | Devstral Small 2505 | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Non-English | — | 1369 |
| LMArena Chinese | — | 1404 |
| LMArena French | — | 1388 |
| LMArena German | — | 1389 |
| LMArena Japanese | — | 1359 |
| LMArena Korean | — | 1360 |
| LMArena Russian | — | 1373 |
| LMArena Spanish | — | 1396 |
Instruction Following Not comparable
Devstral Small 2505: —, Gemini 2.5 Flash-Lite: 70.0 (#168)
| Benchmark | Devstral Small 2505 | Gemini 2.5 Flash-Lite |
|---|---|---|
| IFEval | — | 81% |
| LMArena Instruction Following | — | 1367 |
Long Context Not comparable
Devstral Small 2505: —, Gemini 2.5 Flash-Lite: 33.3 (#262)
| Benchmark | Devstral Small 2505 | Gemini 2.5 Flash-Lite |
|---|---|---|
| Fiction.LiveBench | — | 47.2% |
| LMArena Longer Query | — | 1373 |
Writing & Preference Not comparable
Devstral Small 2505: —, Gemini 2.5 Flash-Lite: 56.8 (#135)
| Benchmark | Devstral Small 2505 | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Text | — | 1379 |
| LMArena Creative Writing | — | 1367 |
| WildBench | — | 81.8% |
| LMArena Multi-Turn | — | 1366 |
Frequently asked questions
Is Devstral Small 2505 better than Gemini 2.5 Flash-Lite?
Gemini 2.5 Flash-Lite is the stronger model overall, scoring 37.0 to 34.3 on the Noometry Index.
Which is cheaper, Devstral Small 2505 or Gemini 2.5 Flash-Lite?
Devstral Small 2505 is cheaper. It lists at $0.10 per million input tokens and $0.30 per million output tokens; Gemini 2.5 Flash-Lite lists at $0.10 and $0.40.
Is Devstral Small 2505 or Gemini 2.5 Flash-Lite better for coding?
They score almost the same on coding (38.9 vs 38.5); test both on your own repository before choosing.
Which has the bigger context window?
Gemini 2.5 Flash-Lite does, with 1.05M tokens against 128K.
How many benchmarks do Devstral Small 2505 and Gemini 2.5 Flash-Lite share?
1 benchmark has published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Gemini 2.5 Flash-Lite has 33.