# Devstral Small 2505 vs Ministral 8B

> Devstral Small 2505 is the stronger model overall, scoring 33.9 to 27.8 on the Noometry Index. Ministral 8B costs 1.5× less per token, which makes it the better buy when Devstral Small 2505's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/devstral-small-vs-ministral-8b
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where Devstral Small 2505 leads 38.6 to 34.4.
- Ministral 8B is cheaper at $0.10 / $0.10 per million input/output tokens, against $0.10 / $0.30 for Devstral Small 2505.

## Snapshot

| | Devstral Small 2505 | Ministral 8B |
|---|---|---|
| Provider | Mistral AI | Mistral AI |
| Noometry Index | 33.9 | 27.8 |
| Rank | 228 | 321 |
| Context | 128K | 128K |
| Input $/M | $0.10 | $0.10 |
| Output $/M | $0.30 | $0.10 |
| Weights | Open | Open |

## Coding

- Devstral Small 2505: 38.6 (#160)
- Ministral 8B: 34.4 (#226)

| Benchmark | Devstral Small 2505 | Ministral 8B |
|---|---|---|
| SWE-bench Verified (bash only) | 56.4% | — |
| SciCode | 28.8% | — |
| LMArena Coding | — | 1202 |

## Agentic & Tool Use

- Devstral Small 2505: —
- Ministral 8B: 16.2 (#140)

| Benchmark | Devstral Small 2505 | Ministral 8B |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 11.1% |

## Reasoning

- Devstral Small 2505: 19.1 (#243)
- Ministral 8B: 17.7 (#279)

| Benchmark | Devstral Small 2505 | Ministral 8B |
|---|---|---|
| Kagi LLM Benchmark | 37.7% | — |
| CritPt | 0% | — |
| LMArena Hard Prompts | — | 1191 |
| DTBench | — | 45.7% |

## Math

- Devstral Small 2505: —
- Ministral 8B: 23.7 (#262)

| Benchmark | Devstral Small 2505 | Ministral 8B |
|---|---|---|
| LMArena Math | — | 1188 |
| MATH Level 5 | — | 14.9% |

## Knowledge

- Devstral Small 2505: —
- Ministral 8B: 12.5 (#292)

| Benchmark | Devstral Small 2505 | Ministral 8B |
|---|---|---|
| GPQA Diamond | — | 27.1% |
| Vectara Hallucination Rate | — | 7.4% |
| LMArena Expert | — | 1170 |

## Multilingual

- Devstral Small 2505: —
- Ministral 8B: 35.3 (#242)

| Benchmark | Devstral Small 2505 | Ministral 8B |
|---|---|---|
| LMArena Non-English | — | 1165 |
| LMArena Chinese | — | 1193 |
| LMArena Russian | — | 1195 |

## Instruction Following

- Devstral Small 2505: —
- Ministral 8B: 60.7 (#245)

| Benchmark | Devstral Small 2505 | Ministral 8B |
|---|---|---|
| LMArena Instruction Following | — | 1161 |

## Long Context

- Devstral Small 2505: —
- Ministral 8B: 36.7 (#222)

| Benchmark | Devstral Small 2505 | Ministral 8B |
|---|---|---|
| LMArena Longer Query | — | 1212 |

## Writing & Preference

- Devstral Small 2505: —
- Ministral 8B: 39.8 (#241)

| Benchmark | Devstral Small 2505 | Ministral 8B |
|---|---|---|
| LMArena Text | — | 1191 |
| LMArena Creative Writing | — | 1175 |
| LMArena Multi-Turn | — | 1166 |

## FAQ

### Is Devstral Small 2505 better than Ministral 8B?

Devstral Small 2505 is the stronger model overall, scoring 33.9 to 27.8 on the Noometry Index. Ministral 8B costs 1.5× less per token, which makes it the better buy when Devstral Small 2505's lead doesn't matter for your workload.

### Which is cheaper, Devstral Small 2505 or Ministral 8B?

Ministral 8B is cheaper. It lists at $0.10 per million input tokens and $0.10 per million output tokens; Devstral Small 2505 lists at $0.10 and $0.30.

### Is Devstral Small 2505 or Ministral 8B better for coding?

Devstral Small 2505 scores higher on coding benchmarks: 38.6 versus 34.4 in the Noometry coding category.

### Which has the bigger context window?

Both accept 128K tokens.

### How many benchmarks do Devstral Small 2505 and Ministral 8B share?

0 benchmarks have published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Ministral 8B has 17.