ModelRefs / Claude Opus 4 vs Mistral Small 3.1 — Benchmarks, Pricing &…
Claude Opus 4 vs Mistral Small 3.1 — Benchmarks, Pricing &…
Claude Opus 4 vs Mistral Small 3.1: side-by-side benchmarks, pricing, context windows, coding ability and deployment. Pick the right model for your stack.
Overview
Claude Opus 4: Claude Opus 4 is Anthropic's May 2025 hybrid-reasoning model for complex coding, reasoning, multimodal analysis, and long-running agent workflows. The dated claude-opus-4-20250514 snapshot was retired on Anthropic-operated platforms on June 15, 2026 and is retained as a historical evaluation and migration reference.
Context window: Claude Opus 4 accepts up to 200,000 tokens, Mistral Small 3.1 up to 128,000. Confirm the limit for your specific deployment channel before relying on it.
Claude Opus 4 vs Mistral Small 3.1 at a glance
| Attribute | Claude Opus 4 | Mistral Small 3.1 |
|---|---|---|
| Provider | Anthropic | Mistral AI |
| Released | 2025-05-22 | 2025-03-17 |
| Context window | 200,000 tokens | 128,000 tokens |
| Input price | $15/M tokens | $0.1/M tokens |
| Output price | $75/M tokens | $0.3/M tokens |
| Licence | Proprietary | Apache-2.0 |
| Self-hostable | No, hosted only | Yes, open weights |
| Modalities | text, vision | text, vision |
Where they differ most
- Reasoning: Claude Opus 4 78%, Mistral Small 3.1 67%. Claude Opus 4 leads on this dimension.
Capability scores are ModelRefs' own derived signals, not vendor claims or benchmark results. Validate against your own workload before relying on them.
Continue your research
Use these connected ModelRefs sections to compare alternatives, inspect implementation paths, and review the evidence and governance boundaries relevant to Claude Opus 4 vs Mistral Small 3.1 — Benchmarks, Pricing &….
Frequently asked questions
Which is better, Claude Opus 4 or Mistral Small 3.1?
Claude Opus 4 and Mistral Small 3.1 target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is Claude Opus 4 cheaper than Mistral Small 3.1?
Compare $0.0150 vs $0.00010 on this page.