# Codestral vs DeepSeek V4.1 Flash

> DeepSeek V4.1 Flash is the stronger model overall, scoring 52.8 to 30.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/codestral-vs-deepseek-v4-1-flash
- Last updated: 2026-10-11
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Codestral scores higher in 0 categories and DeepSeek V4.1 Flash in 2 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where DeepSeek V4.1 Flash leads 50.2 to 19.8.
- DeepSeek V4.1 Flash is cheaper at $0.15 / $0.60 per million input/output tokens, against $0.30 / $0.90 for Codestral.
- DeepSeek V4.1 Flash accepts more context: 1M tokens versus 256K.
- DeepSeek V4.1 Flash has downloadable open weights; the other is API-only.

## Snapshot

| | Codestral | DeepSeek V4.1 Flash |
|---|---|---|
| Provider | Mistral AI | DeepSeek |
| Noometry Index | 30.6 | 52.8 |
| Rank | 290 | 38 |
| Context | 256K | 1M |
| Input $/M | $0.30 | $0.15 |
| Output $/M | $0.90 | $0.60 |
| Weights | Proprietary | Open |

## Coding

- Codestral: 27.3 (#321)
- DeepSeek V4.1 Flash: 52.9 (#32)

| Benchmark | Codestral | DeepSeek V4.1 Flash |
|---|---|---|
| ALE-Bench | 137.78 | 1,092 |
| Aider Polyglot | 11.1% | — |
| LMArena WebDev | — | 1619 |
| SciCode | — | 51.9% |
| BigCodeBench Instruct | 41.8% | — |
| LMArena Coding | — | 1506 |
| BigCodeBench Complete | 52.5% | — |
| HumanEval+ | 73.8% | — |
| MBPP+ | 61.9% | — |

## Agentic & Tool Use

- Codestral: —
- DeepSeek V4.1 Flash: 31.2 (#69)

| Benchmark | Codestral | DeepSeek V4.1 Flash |
|---|---|---|
| APEX-Agents | — | 39.5% |
| GDP.pdf | — | 19.8% |

## Reasoning

- Codestral: 19.8 (#251)
- DeepSeek V4.1 Flash: 50.2 (#36)

| Benchmark | Codestral | DeepSeek V4.1 Flash |
|---|---|---|
| Kagi LLM Benchmark | 32.5% | — |
| NYT Connections (extended) | — | 89.6% |
| CritPt | — | 14.3% |
| LMArena Hard Prompts | — | 1483 |
| Mystery Game Puzzles | — | 43% |
| DTBench | — | 89.9% |
| LMCA | — | 47% |
| Surface Evolver Bench | — | 46.3% |
| Epoch Capabilities Index | — | 154.9 |

## Math

- Codestral: —
- DeepSeek V4.1 Flash: 66.7 (#25)

| Benchmark | Codestral | DeepSeek V4.1 Flash |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 67.4% |
| FrontierMath Tier 4 | — | 26.8% |
| OTIS Mock AIME 2024-2025 | — | 98.3% |
| ProofBench | — | 54% |
| LMArena Math | — | 1477 |

## Knowledge

- Codestral: —
- DeepSeek V4.1 Flash: 57.9 (#38)

| Benchmark | Codestral | DeepSeek V4.1 Flash |
|---|---|---|
| GPQA Diamond | — | 89.8% |
| LMArena Expert | — | 1506 |

## Multimodal

- Codestral: —
- DeepSeek V4.1 Flash: 39.1 (#61)

| Benchmark | Codestral | DeepSeek V4.1 Flash |
|---|---|---|
| LMArena Vision | — | 1277 |
| Furniture Assembly | — | 34.2% |

## Multilingual

- Codestral: —
- DeepSeek V4.1 Flash: 55.0 (#35)

| Benchmark | Codestral | DeepSeek V4.1 Flash |
|---|---|---|
| LMArena Non-English | — | 1448 |
| LMArena Chinese | — | 1497 |
| LMArena French | — | 1452 |
| LMArena German | — | 1484 |
| LMArena Japanese | — | 1412 |
| LMArena Korean | — | 1452 |
| LMArena Russian | — | 1471 |
| LMArena Spanish | — | 1459 |

## Instruction Following

- Codestral: —
- DeepSeek V4.1 Flash: 77.3 (#26)

| Benchmark | Codestral | DeepSeek V4.1 Flash |
|---|---|---|
| LMArena Instruction Following | — | 1474 |

## Long Context

- Codestral: —
- DeepSeek V4.1 Flash: 45.2 (#47)

| Benchmark | Codestral | DeepSeek V4.1 Flash |
|---|---|---|
| LMArena Longer Query | — | 1475 |

## Writing & Preference

- Codestral: —
- DeepSeek V4.1 Flash: 65.4 (#48)

| Benchmark | Codestral | DeepSeek V4.1 Flash |
|---|---|---|
| LMArena Text | — | 1462 |
| LMArena Creative Writing | — | 1435 |
| EQ-Bench Creative Writing | — | 1540 |
| LMArena Multi-Turn | — | 1457 |

## FAQ

### Is Codestral better than DeepSeek V4.1 Flash?

DeepSeek V4.1 Flash is the stronger model overall, scoring 52.8 to 30.6 on the Noometry Index.

### Which is cheaper, Codestral or DeepSeek V4.1 Flash?

DeepSeek V4.1 Flash is cheaper. It lists at $0.15 per million input tokens and $0.60 per million output tokens; Codestral lists at $0.30 and $0.90.

### Is Codestral or DeepSeek V4.1 Flash better for coding?

DeepSeek V4.1 Flash scores higher on coding benchmarks: 52.9 versus 27.3 in the Noometry coding category.

### Which has the bigger context window?

DeepSeek V4.1 Flash does, with 1M tokens against 256K.

### How many benchmarks do Codestral and DeepSeek V4.1 Flash share?

1 benchmark has published results for both models. Codestral has 7 scored results on Noometry and DeepSeek V4.1 Flash has 37.