Model comparison
Devstral Small 2505 vs Mistral 7B
Devstral Small 2505 is the stronger model overall, scoring 34.3 to 23.0 on the Noometry Index.
Last verified . 0 shared benchmarks.
Mistral AISummary
- The widest gap is in coding, where Devstral Small 2505 leads 38.9 to 26.4.
- Devstral Small 2505 is cheaper at $0.10 / $0.30 per million input/output tokens, against $0.25 / $0.25 for Mistral 7B.
- Devstral Small 2505 accepts more context: 128K tokens versus 8K.
Side by side
| Devstral Small 2505 | Mistral 7B | |
|---|---|---|
| Provider | Mistral AI | Mistral AI |
| Noometry Index | 34.3 | 23.0 |
| Released | 2025-05-07 | 2023-09-27 |
| Weights | Open | Open |
| Context window | 128K | 8K |
| Max output | 128K | 8K |
| Input $ / M tokens | $0.10 | $0.25 |
| Output $ / M tokens | $0.30 | $0.25 |
| Results tracked | 4 | 37 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Devstral Small 2505 leads
Devstral Small 2505: 38.9 (#166), Mistral 7B: 26.4 (#326)
| Benchmark | Devstral Small 2505 | Mistral 7B |
|---|---|---|
| SWE-bench Verified (bash only) | 56.4% | — |
| SciCode | 28.8% | — |
| BigCodeBench Instruct | — | 19.5% |
| LMArena Coding | — | 1082 |
| BigCodeBench Complete | — | 27.3% |
| HumanEval+ | — | 36% |
| MBPP+ | — | 42.1% |
Reasoning Devstral Small 2505 leads
Devstral Small 2505: 19.7 (#252), Mistral 7B: 13.1 (#336)
| Benchmark | Devstral Small 2505 | Mistral 7B |
|---|---|---|
| Kagi LLM Benchmark | 37.7% | — |
| CritPt | 0% | — |
| Chess Puzzles | — | 0% |
| LMArena Hard Prompts | — | 1067 |
| DTBench | — | 42.5% |
| Adversarial NLI | — | 47.1% |
| BIG-Bench Hard | — | 56.1% |
| Epoch Capabilities Index | — | 112.21 |
| HellaSwag | — | 81% |
| PIQA | — | 83% |
| WinoGrande | — | 75.3% |
Math Not comparable
Devstral Small 2505: —, Mistral 7B: 8.1 (#325)
| Benchmark | Devstral Small 2505 | Mistral 7B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 0.3% |
| LMArena Math | — | 1085 |
| MATH Level 5 | — | 3.7% |
| GSM8K | — | 54.4% |
Knowledge Not comparable
Devstral Small 2505: —, Mistral 7B: 7.4 (#311)
| Benchmark | Devstral Small 2505 | Mistral 7B |
|---|---|---|
| GPQA Diamond | — | 15.2% |
| LMArena Expert | — | 1036 |
| ARC (AI2) Challenge | — | 78.6% |
| BoolQ | — | 87.4% |
| MMLU | — | 62.5% |
| OpenBookQA | — | 79.8% |
| TriviaQA | — | 75.2% |
Multilingual Not comparable
Devstral Small 2505: —, Mistral 7B: 25.8 (#283)
| Benchmark | Devstral Small 2505 | Mistral 7B |
|---|---|---|
| LMArena Non-English | — | 1012 |
| LMArena Chinese | — | 1009 |
| LMArena French | — | 1037 |
| LMArena German | — | 987 |
| LMArena Japanese | — | 878 |
| LMArena Russian | — | 1018 |
| LMArena Spanish | — | 1026 |
Instruction Following Not comparable
Devstral Small 2505: —, Mistral 7B: 54.2 (#280)
| Benchmark | Devstral Small 2505 | Mistral 7B |
|---|---|---|
| LMArena Instruction Following | — | 1060 |
Long Context Not comparable
Devstral Small 2505: —, Mistral 7B: 32.2 (#271)
| Benchmark | Devstral Small 2505 | Mistral 7B |
|---|---|---|
| LMArena Longer Query | — | 1060 |
Writing & Preference Not comparable
Devstral Small 2505: —, Mistral 7B: 30.7 (#286)
| Benchmark | Devstral Small 2505 | Mistral 7B |
|---|---|---|
| LMArena Text | — | 1090 |
| LMArena Creative Writing | — | 1068 |
| LMArena Multi-Turn | — | 1062 |
Frequently asked questions
Is Devstral Small 2505 better than Mistral 7B?
Devstral Small 2505 is the stronger model overall, scoring 34.3 to 23.0 on the Noometry Index.
Which is cheaper, Devstral Small 2505 or Mistral 7B?
Devstral Small 2505 is cheaper. It lists at $0.10 per million input tokens and $0.30 per million output tokens; Mistral 7B lists at $0.25 and $0.25.
Is Devstral Small 2505 or Mistral 7B better for coding?
Devstral Small 2505 scores higher on coding benchmarks: 38.9 versus 26.4 in the Noometry coding category.
Which has the bigger context window?
Devstral Small 2505 does, with 128K tokens against 8K.
How many benchmarks do Devstral Small 2505 and Mistral 7B share?
0 benchmarks have published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Mistral 7B has 37.