# DeepSeek V3.1 vs Devstral Small

> Side-by-side benchmark comparison for DeepSeek V3.1 and Devstral Small across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-v3-1-vs-devstral-small
- Last updated: October 14, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: DeepSeek V3.1 and Devstral Small share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.

## Model Snapshot

| Property | DeepSeek V3.1 | Devstral Small |
|----------|----------|----------|
| Creator | DeepSeek | Mistral |
| Type | Open Weight | Open Weight |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | 128K | 128K |
| Independent public score (not head-to-head) | 40.59 | null |
| Benchmarks Covered | 6 | 1 |
| Pricing (input/output) | $0.00 / $0.00 | N/A |

## Category Breakdown

### Coding

- Winner: Insufficient shared evidence
- DeepSeek V3.1 public-lane score: Coming soon
- Devstral Small public-lane score: Coming soon

| Benchmark | DeepSeek V3.1 | Devstral Small | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 66% | 46.8% | DeepSeek V3.1 |
| LiveCodeBench | 56.4% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- DeepSeek V3.1 public-lane score: 58.1 (Unranked · 2 rankable rows)
- Devstral Small public-lane score: Coming soon

### Knowledge

- Winner: Insufficient shared evidence
- DeepSeek V3.1 public-lane score: 38.7 (Supported · #119/181)
- Devstral Small public-lane score: Coming soon

| Benchmark | DeepSeek V3.1 | Devstral Small | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 74.9% | Coming soon | Coming soon |
| MMLU-Pro | 83.7% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- DeepSeek V3.1 public-lane score: 43.5 (#99/128)
- Devstral Small public-lane score: Coming soon

### Mathematics

- Winner: Insufficient shared evidence
- DeepSeek V3.1 public-lane score: Coming soon
- Devstral Small public-lane score: Coming soon

| Benchmark | DeepSeek V3.1 | Devstral Small | Winner |
|-----------|-----------|-----------|--------|
| AIME 2024 | 66.3% | Coming soon | Coming soon |
| AIME 2025 | 49.8% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between DeepSeek V3.1 and Devstral Small?

Not yet. The models share only 1 sourced benchmark row, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [DeepSeek V3.1 vs DeepSeek V3.1 (Reasoning)](/compare/deepseek-v3-1-vs-deepseek-v3-1-reasoning)
- [Devstral Small vs DeepSeek V3.1 (Reasoning)](/compare/deepseek-v3-1-reasoning-vs-devstral-small)
- [DeepSeek V3.1 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-deepseek-v3-1)
- [Devstral Small vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-devstral-small)

## Explore More

- [DeepSeek V3.1 profile](/models/deepseek-v3-1)
- [Devstral Small profile](/models/devstral-small)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)