# Devstral Small 2505 vs Longcat Flash Chat

> Longcat Flash Chat is the stronger model overall, scoring 42.1 to 34.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/devstral-small-vs-longcat-flash-chat
- Last updated: 2026-10-12
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Devstral Small 2505 scores higher in 1 category and Longcat Flash Chat in 1 category; one gap is clear of the uncertainty.
- The widest gap is in coding, where Longcat Flash Chat leads 43.5 to 38.9.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 37.7% for Devstral Small 2505 and 43.9% for Longcat Flash Chat.

## Snapshot

| | Devstral Small 2505 | Longcat Flash Chat |
|---|---|---|
| Provider | Mistral AI | Meituan |
| Noometry Index | 34.3 | 42.1 |
| Rank | 233 | 120 |
| Context | 128K | — |
| Input $/M | $0.10 | — |
| Output $/M | $0.30 | — |
| Weights | Open | Open |

## Coding

- Devstral Small 2505: 38.9 (#166)
- Longcat Flash Chat: 43.5 (#87)

| Benchmark | Devstral Small 2505 | Longcat Flash Chat |
|---|---|---|
| SWE-bench Verified (bash only) | 56.4% | — |
| SciCode | 28.8% | — |
| LMArena Coding | — | 1471 |

## Reasoning

- Devstral Small 2505: 19.7 (#252)
- Longcat Flash Chat: 19.0 (#272)

| Benchmark | Devstral Small 2505 | Longcat Flash Chat |
|---|---|---|
| Kagi LLM Benchmark | 37.7% | 43.9% |
| NYT Connections (extended) | — | 17.7% |
| CritPt | 0% | — |
| LMArena Hard Prompts | — | 1440 |

## Math

- Devstral Small 2505: —
- Longcat Flash Chat: 39.4 (#107)

| Benchmark | Devstral Small 2505 | Longcat Flash Chat |
|---|---|---|
| LMArena Math | — | 1442 |

## Knowledge

- Devstral Small 2505: —
- Longcat Flash Chat: 40.6 (#116)

| Benchmark | Devstral Small 2505 | Longcat Flash Chat |
|---|---|---|
| LMArena Expert | — | 1454 |

## Multilingual

- Devstral Small 2505: —
- Longcat Flash Chat: 51.9 (#101)

| Benchmark | Devstral Small 2505 | Longcat Flash Chat |
|---|---|---|
| LMArena Non-English | — | 1404 |
| LMArena Chinese | — | 1465 |
| LMArena French | — | 1456 |
| LMArena German | — | 1408 |
| LMArena Japanese | — | 1373 |
| LMArena Korean | — | 1371 |
| LMArena Russian | — | 1395 |
| LMArena Spanish | — | 1445 |

## Instruction Following

- Devstral Small 2505: —
- Longcat Flash Chat: 74.4 (#96)

| Benchmark | Devstral Small 2505 | Longcat Flash Chat |
|---|---|---|
| LMArena Instruction Following | — | 1411 |

## Long Context

- Devstral Small 2505: —
- Longcat Flash Chat: 43.5 (#93)

| Benchmark | Devstral Small 2505 | Longcat Flash Chat |
|---|---|---|
| LMArena Longer Query | — | 1425 |

## Writing & Preference

- Devstral Small 2505: —
- Longcat Flash Chat: 61.0 (#91)

| Benchmark | Devstral Small 2505 | Longcat Flash Chat |
|---|---|---|
| LMArena Text | — | 1427 |
| LMArena Creative Writing | — | 1388 |
| LMArena Multi-Turn | — | 1418 |

## FAQ

### Is Devstral Small 2505 better than Longcat Flash Chat?

Longcat Flash Chat is the stronger model overall, scoring 42.1 to 34.3 on the Noometry Index.

### Is Devstral Small 2505 or Longcat Flash Chat better for coding?

Longcat Flash Chat scores higher on coding benchmarks: 43.5 versus 38.9 in the Noometry coding category.

### How many benchmarks do Devstral Small 2505 and Longcat Flash Chat share?

1 benchmark has published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Longcat Flash Chat has 19.