Model comparison
Mistral Large 4 vs Step 3.7 Flash
Mistral Large 4 is the stronger model overall, scoring 43.1 to 37.3 on the Noometry Index. Step 3.7 Flash costs 2.5× less per token, which makes it the better buy when Mistral Large 4's lead doesn't matter for your workload.
Last verified . 1 shared benchmarks.
Mistral AI
StepFunSummary
- They share 1 benchmark with published results for both. Mistral Large 4 scores higher in 2 categories and Step 3.7 Flash in 1 category; 2 gaps are clear of the uncertainty.
- The widest gap is in coding, where Mistral Large 4 leads 48.6 to 40.0.
- The biggest single-benchmark swing is NYT Connections (extended): 27.4% for Mistral Large 4 and 39.7% for Step 3.7 Flash.
- Step 3.7 Flash is cheaper at $0.18 / $1.11 per million input/output tokens, against $0.68 / $2.09 for Mistral Large 4.
- Mistral Large 4 accepts more context: 1.05M tokens versus 256K.
- Step 3.7 Flash has downloadable open weights; the other is API-only.
Side by side
| Mistral Large 4 | Step 3.7 Flash | |
|---|---|---|
| Provider | Mistral AI | StepFun |
| Noometry Index | 43.1 | 37.3 |
| Released | 2026-10-06 | 2026-05-29 |
| Weights | Proprietary | Open |
| Context window | 1.05M | 256K |
| Max output | 262K | 256K |
| Input $ / M tokens | $0.68 | $0.18 |
| Output $ / M tokens | $2.09 | $1.11 |
| Results tracked | 15 | 5 |
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Category by category
Coding Mistral Large 4 leads
Mistral Large 4: 48.6 (#57), Step 3.7 Flash: 40.0 (#150)
| Benchmark | Mistral Large 4 | Step 3.7 Flash |
|---|---|---|
| LMArena WebDev | 1541 | — |
| SciCode | — | 40% |
| LMArena Coding | 1475 | — |
| ALE-Bench | — | 694.12 |
Reasoning Too close to call
Mistral Large 4: 22.5 (#192), Step 3.7 Flash: 21.6 (#219)
| Benchmark | Mistral Large 4 | Step 3.7 Flash |
|---|---|---|
| NYT Connections (extended) | 27.4% | 39.7% |
| CritPt | — | 2.3% |
| LMArena Hard Prompts | 1444 | — |
Math Step 3.7 Flash leads
Mistral Large 4: 40.4 (#91), Step 3.7 Flash: 42.9 (#82)
| Benchmark | Mistral Large 4 | Step 3.7 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 68.5% |
| LMArena Math | 1488 | — |
Knowledge Not comparable
Mistral Large 4: 36.6 (#166), Step 3.7 Flash: —
| Benchmark | Mistral Large 4 | Step 3.7 Flash |
|---|---|---|
| SimpleQA Verified | 20% | — |
| LMArena Expert | 1447 | — |
Multilingual Not comparable
Mistral Large 4: 52.6 (#82), Step 3.7 Flash: —
| Benchmark | Mistral Large 4 | Step 3.7 Flash |
|---|---|---|
| LMArena Non-English | 1415 | — |
| LMArena Chinese | 1491 | — |
| LMArena Russian | 1414 | — |
Instruction Following Not comparable
Mistral Large 4: 75.0 (#76), Step 3.7 Flash: —
| Benchmark | Mistral Large 4 | Step 3.7 Flash |
|---|---|---|
| LMArena Instruction Following | 1424 | — |
Long Context Not comparable
Mistral Large 4: 43.6 (#89), Step 3.7 Flash: —
| Benchmark | Mistral Large 4 | Step 3.7 Flash |
|---|---|---|
| LMArena Longer Query | 1429 | — |
Writing & Preference Not comparable
Mistral Large 4: 60.4 (#97), Step 3.7 Flash: —
| Benchmark | Mistral Large 4 | Step 3.7 Flash |
|---|---|---|
| LMArena Text | 1427 | — |
| LMArena Creative Writing | 1361 | — |
| LMArena Multi-Turn | 1424 | — |
Frequently asked questions
Is Mistral Large 4 better than Step 3.7 Flash?
Mistral Large 4 is the stronger model overall, scoring 43.1 to 37.3 on the Noometry Index. Step 3.7 Flash costs 2.5× less per token, which makes it the better buy when Mistral Large 4's lead doesn't matter for your workload.
Which is cheaper, Mistral Large 4 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; Mistral Large 4 lists at $0.68 and $2.09.
Is Mistral Large 4 or Step 3.7 Flash better for coding?
Mistral Large 4 scores higher on coding benchmarks: 48.6 versus 40.0 in the Noometry coding category.
Which has the bigger context window?
Mistral Large 4 does, with 1.05M tokens against 256K.
How many benchmarks do Mistral Large 4 and Step 3.7 Flash share?
1 benchmark has published results for both models. Mistral Large 4 has 15 scored results on Noometry and Step 3.7 Flash has 5.