Model comparison
Codestral vs Step 3.7 Flash
Step 3.7 Flash is the stronger model overall, scoring 37.3 to 30.6 on the Noometry Index.
Last verified . 1 shared benchmarks.
Mistral AI
StepFunSummary
- They share 1 benchmark with published results for both. Codestral scores higher in 0 categories and Step 3.7 Flash in 2 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in coding, where Step 3.7 Flash leads 40.0 to 27.3.
- Step 3.7 Flash is cheaper at $0.18 / $1.11 per million input/output tokens, against $0.30 / $0.90 for Codestral.
- Step 3.7 Flash has downloadable open weights; the other is API-only.
Side by side
| Codestral | Step 3.7 Flash | |
|---|---|---|
| Provider | Mistral AI | StepFun |
| Noometry Index | 30.6 | 37.3 |
| Released | 2024-05-29 | 2026-05-29 |
| Weights | Proprietary | Open |
| Context window | 256K | 256K |
| Max output | 8K | 256K |
| Input $ / M tokens | $0.30 | $0.18 |
| Output $ / M tokens | $0.90 | $1.11 |
| Results tracked | 7 | 5 |
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Category by category
Coding Step 3.7 Flash leads
Codestral: 27.3 (#321), Step 3.7 Flash: 40.0 (#150)
| Benchmark | Codestral | Step 3.7 Flash |
|---|---|---|
| ALE-Bench | 137.78 | 694.12 |
| Aider Polyglot | 11.1% | — |
| SciCode | — | 40% |
| BigCodeBench Instruct | 41.8% | — |
| BigCodeBench Complete | 52.5% | — |
| HumanEval+ | 73.8% | — |
| MBPP+ | 61.9% | — |
Reasoning Step 3.7 Flash leads
Codestral: 19.8 (#251), Step 3.7 Flash: 21.6 (#219)
| Benchmark | Codestral | Step 3.7 Flash |
|---|---|---|
| Kagi LLM Benchmark | 32.5% | — |
| NYT Connections (extended) | — | 39.7% |
| CritPt | — | 2.3% |
Math Not comparable
Codestral: —, Step 3.7 Flash: 42.9 (#82)
| Benchmark | Codestral | Step 3.7 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 68.5% |
Frequently asked questions
Is Codestral better than Step 3.7 Flash?
Step 3.7 Flash is the stronger model overall, scoring 37.3 to 30.6 on the Noometry Index.
Which is cheaper, Codestral or Step 3.7 Flash?
Step 3.7 Flash is cheaper. It lists at $0.18 per million input tokens and $1.11 per million output tokens; Codestral lists at $0.30 and $0.90.
Is Codestral or Step 3.7 Flash better for coding?
Step 3.7 Flash scores higher on coding benchmarks: 40.0 versus 27.3 in the Noometry coding category.
Which has the bigger context window?
Both accept 256K tokens.
How many benchmarks do Codestral and Step 3.7 Flash share?
1 benchmark has published results for both models. Codestral has 7 scored results on Noometry and Step 3.7 Flash has 5.