Mistral Small 3.1 vs Step 3.5 Flash
Both have similar output pricing, while Step 3.5 Flash offers a larger context window. Choose Mistral Small 3.1 or Step 3.5 Flash based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Mistral Small 3.1 | Step 3.5 Flash |
|---|---|---|
| Provider | Azure | StepFun |
| Input / 1M tokens | $0.10 | $0.10 |
| Output / 1M tokens | $0.30 | $0.30 |
| Context window | 128K | 262K |
| Parameters | — | — |
| Open weights | No | Yes |
| Released | Mar 2025 | Jan 2026 |
| GPQA Diamond score | 41.9 | — |
| Epoch Capabilities Index score | 127 | — |
| LMArena (Chatbot Arena) Elo score | — | 1403 |
FAQ
Is Mistral Small 3.1 or Step 3.5 Flash cheaper?
Mistral Small 3.1 and Step 3.5 Flash have comparable output pricing.
Which has the larger context window, Mistral Small 3.1 or Step 3.5 Flash?
Step 3.5 Flash has the larger context window (262K tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.