Model comparison
Devstral Small 2505 vs Yi-34B
Devstral Small 2505 is the stronger model overall, scoring 34.3 to 27.8 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 32.3.
Side by side
| Devstral Small 2505 | Yi-34B | |
|---|---|---|
| Provider | Mistral AI | 01.AI |
| Noometry Index | 34.3 | 27.8 |
| Released | 2025-05-07 | 2023-11-02 |
| Weights | Open | Open |
| Context window | 128K | — |
| Max output | 128K | — |
| Input $ / M tokens | $0.10 | — |
| Output $ / M tokens | $0.30 | — |
| Results tracked | 4 | 23 |
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Category by category
Coding Devstral Small 2505 leads
Devstral Small 2505: 38.9 (#166), Yi-34B: 32.3 (#274)
| Benchmark | Devstral Small 2505 | Yi-34B |
|---|---|---|
| SWE-bench Verified (bash only) | 56.4% | — |
| SciCode | 28.8% | — |
| LMArena Coding | — | 1112 |
Reasoning Yi-34B leads
Devstral Small 2505: 19.7 (#252), Yi-34B: 21.2 (#226)
| Benchmark | Devstral Small 2505 | Yi-34B |
|---|---|---|
| Kagi LLM Benchmark | 37.7% | — |
| CritPt | 0% | — |
| LMArena Hard Prompts | — | 1104 |
| BIG-Bench Hard | — | 71.7% |
| Epoch Capabilities Index | — | 117.39 |
Math Not comparable
Devstral Small 2505: —, Yi-34B: 21.6 (#282)
| Benchmark | Devstral Small 2505 | Yi-34B |
|---|---|---|
| LMArena Math | — | 1114 |
| MATH Level 5 | — | 5.1% |
| GSM8K | — | 76% |
Knowledge Not comparable
Devstral Small 2505: —, Yi-34B: 7.5 (#309)
| Benchmark | Devstral Small 2505 | Yi-34B |
|---|---|---|
| GPQA Diamond | — | 14.7% |
| LMArena Expert | — | 1061 |
| MMLU | — | 76.3% |
Multilingual Not comparable
Devstral Small 2505: —, Yi-34B: 29.7 (#264)
| Benchmark | Devstral Small 2505 | Yi-34B |
|---|---|---|
| LMArena Non-English | — | 1079 |
| LMArena Chinese | — | 1176 |
| LMArena French | — | 1081 |
| LMArena German | — | 1042 |
| LMArena Japanese | — | 993 |
| LMArena Korean | — | 959 |
| LMArena Russian | — | 1050 |
| LMArena Spanish | — | 1070 |
Instruction Following Not comparable
Devstral Small 2505: —, Yi-34B: 56.2 (#274)
| Benchmark | Devstral Small 2505 | Yi-34B |
|---|---|---|
| LMArena Instruction Following | — | 1091 |
Long Context Not comparable
Devstral Small 2505: —, Yi-34B: 33.2 (#264)
| Benchmark | Devstral Small 2505 | Yi-34B |
|---|---|---|
| LMArena Longer Query | — | 1094 |
Writing & Preference Not comparable
Devstral Small 2505: —, Yi-34B: 34.1 (#273)
| Benchmark | Devstral Small 2505 | Yi-34B |
|---|---|---|
| LMArena Text | — | 1129 |
| LMArena Creative Writing | — | 1108 |
| LMArena Multi-Turn | — | 1113 |
Frequently asked questions
Is Devstral Small 2505 better than Yi-34B?
Devstral Small 2505 is the stronger model overall, scoring 34.3 to 27.8 on the Noometry Index.
Is Devstral Small 2505 or Yi-34B better for coding?
Devstral Small 2505 scores higher on coding benchmarks: 38.9 versus 32.3 in the Noometry coding category.
How many benchmarks do Devstral Small 2505 and Yi-34B share?
0 benchmarks have published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Yi-34B has 23.