# Claude 4.1 Opus Thinking vs Mistral Small 3.1

> Side-by-side benchmark comparison for Claude 4.1 Opus Thinking and Mistral Small 3.1 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-4-1-opus-thinking-vs-mistral-small-3-1
- Last updated: October 14, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Claude 4.1 Opus Thinking and Mistral Small 3.1.

## Summary

- Claude 4.1 Opus Thinking and Mistral Small 3.1 do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Claude 4.1 Opus Thinking | Mistral Small 3.1 |
|----------|----------|----------|
| Creator | Anthropic | Mistral |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 200K | 128K |
| Independent public score (not head-to-head) | 39.39 | null |
| Benchmarks Covered | 0 | 7 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | N/A |

## Category Breakdown

### Coding

- Winner: Insufficient shared evidence
- Claude 4.1 Opus Thinking public-lane score: Coming soon
- Mistral Small 3.1 public-lane score: Coming soon

| Benchmark | Claude 4.1 Opus Thinking | Mistral Small 3.1 | Winner |
|-----------|-----------|-----------|--------|
| HumanEval | Coming soon | 88.4% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude 4.1 Opus Thinking public-lane score: 78.1 (Unranked · 2 rankable rows)
- Mistral Small 3.1 public-lane score: Coming soon

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude 4.1 Opus Thinking public-lane score: 64.5 (Unranked · 1 rankable row)
- Mistral Small 3.1 public-lane score: 18.8 (Unranked · 2 rankable rows)

| Benchmark | Claude 4.1 Opus Thinking | Mistral Small 3.1 | Winner |
|-----------|-----------|-----------|--------|
| MMMU | Coming soon | 64.0% | Coming soon |
| MMMU-Pro | Coming soon | 49.3% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude 4.1 Opus Thinking public-lane score: 43.8 (Estimated · #102/181)
- Mistral Small 3.1 public-lane score: Coming soon

| Benchmark | Claude 4.1 Opus Thinking | Mistral Small 3.1 | Winner |
|-----------|-----------|-----------|--------|
| MMLU | Coming soon | 80.6% | Coming soon |
| MMLU-Pro | Coming soon | 66.8% | Coming soon |
| GPQA | Coming soon | 46.0% | Coming soon |
| SimpleQA | Coming soon | 10.4% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude 4.1 Opus Thinking public-lane score: 66.5 (#70/128)
- Mistral Small 3.1 public-lane score: Coming soon

## FAQ

### Can I compare Claude 4.1 Opus Thinking and Mistral Small 3.1 on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Claude 4.1 Opus Thinking vs Claude 4.1 Opus](/compare/claude-4-1-opus-vs-claude-4-1-opus-thinking)
- [Mistral Small 3.1 vs Claude 4.1 Opus](/compare/claude-4-1-opus-vs-mistral-small-3-1)
- [Claude 4.1 Opus Thinking vs Claude Opus 5.5](/compare/claude-4-1-opus-thinking-vs-claude-opus-5-5)
- [Mistral Small 3.1 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-mistral-small-3-1)

## Explore More

- [Claude 4.1 Opus Thinking profile](/models/claude-4-1-opus-thinking)
- [Mistral Small 3.1 profile](/models/mistral-small-3-1)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)