# Grok Build 0.1 vs Longcat Flash Chat

> Longcat Flash Chat is the stronger model overall, scoring 41.5 to 35.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-build-0-1-vs-longcat-flash-chat
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where Grok Build 0.1 leads 31.3 to 18.3.
- Longcat Flash Chat has downloadable open weights; the other is API-only.

## Snapshot

| | Grok Build 0.1 | Longcat Flash Chat |
|---|---|---|
| Provider | xAI | Meituan |
| Noometry Index | 35.8 | 41.5 |
| Rank | 214 | 121 |
| Context | 256K | — |
| Input $/M | $1 | — |
| Output $/M | $2 | — |
| Weights | Proprietary | Open |

## Coding

- Grok Build 0.1: 42.5 (#90)
- Longcat Flash Chat: 42.9 (#85)

| Benchmark | Grok Build 0.1 | Longcat Flash Chat |
|---|---|---|
| SciCode | 50.2% | — |
| LMArena Coding | — | 1471 |

## Agentic & Tool Use

- Grok Build 0.1: 22.5 (#122)
- Longcat Flash Chat: —

| Benchmark | Grok Build 0.1 | Longcat Flash Chat |
|---|---|---|
| GBAEval | 2.4% | — |

## Reasoning

- Grok Build 0.1: 31.3 (#73)
- Longcat Flash Chat: 18.3 (#267)

| Benchmark | Grok Build 0.1 | Longcat Flash Chat |
|---|---|---|
| Kagi LLM Benchmark | — | 43.9% |
| NYT Connections (extended) | — | 17.7% |
| CritPt | 9.1% | — |
| LMArena Hard Prompts | — | 1440 |

## Math

- Grok Build 0.1: —
- Longcat Flash Chat: 36.6 (#107)

| Benchmark | Grok Build 0.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Math | — | 1441 |

## Knowledge

- Grok Build 0.1: —
- Longcat Flash Chat: 40.0 (#111)

| Benchmark | Grok Build 0.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Expert | — | 1454 |

## Multilingual

- Grok Build 0.1: —
- Longcat Flash Chat: 52.1 (#95)

| Benchmark | Grok Build 0.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Non-English | — | 1404 |
| LMArena Chinese | — | 1465 |
| LMArena French | — | 1457 |
| LMArena German | — | 1409 |
| LMArena Japanese | — | 1373 |
| LMArena Korean | — | 1372 |
| LMArena Russian | — | 1396 |
| LMArena Spanish | — | 1445 |

## Instruction Following

- Grok Build 0.1: —
- Longcat Flash Chat: 74.6 (#92)

| Benchmark | Grok Build 0.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Instruction Following | — | 1411 |

## Long Context

- Grok Build 0.1: —
- Longcat Flash Chat: 43.5 (#89)

| Benchmark | Grok Build 0.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Longer Query | — | 1425 |

## Writing & Preference

- Grok Build 0.1: —
- Longcat Flash Chat: 61.2 (#88)

| Benchmark | Grok Build 0.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Text | — | 1427 |
| LMArena Creative Writing | — | 1388 |
| LMArena Multi-Turn | — | 1418 |

## FAQ

### Is Grok Build 0.1 better than Longcat Flash Chat?

Longcat Flash Chat is the stronger model overall, scoring 41.5 to 35.8 on the Noometry Index.

### Is Grok Build 0.1 or Longcat Flash Chat better for coding?

They score almost the same on coding (42.5 vs 42.9); test both on your own repository before choosing.

### How many benchmarks do Grok Build 0.1 and Longcat Flash Chat share?

0 benchmarks have published results for both models. Grok Build 0.1 has 3 scored results on Noometry and Longcat Flash Chat has 19.