# Llama 3.1-8B vs Longcat Flash Chat

> Longcat Flash Chat is the stronger model overall, scoring 42.1 to 23.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/llama-3-1-8b-vs-longcat-flash-chat
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Llama 3.1-8B scores higher in 0 categories and Longcat Flash Chat in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Longcat Flash Chat leads 40.6 to 8.0.

## Snapshot

| | Llama 3.1-8B | Longcat Flash Chat |
|---|---|---|
| Provider | Meta | Meituan |
| Noometry Index | 23.0 | 42.1 |
| Rank | 352 | 120 |
| Context | 128K | — |
| Input $/M | $0.05 | — |
| Output $/M | $0.08 | — |
| Weights | Open | Open |

## Coding

- Llama 3.1-8B: 20.2 (#340)
- Longcat Flash Chat: 43.5 (#87)

| Benchmark | Llama 3.1-8B | Longcat Flash Chat |
|---|---|---|
| LMArena Coding | 1195 | 1471 |
| SciCode | 13.2% | — |
| WeirdML | 1.7% | — |
| BigCodeBench Instruct | 32.8% | — |
| BigCodeBench Complete | 40.5% | — |
| HumanEval+ | 62.8% | — |
| MBPP+ | 55.6% | — |

## Agentic & Tool Use

- Llama 3.1-8B: 22.5 (#131)
- Longcat Flash Chat: —

| Benchmark | Llama 3.1-8B | Longcat Flash Chat |
|---|---|---|
| Berkeley Function Calling Leaderboard | 25.8% | — |
| BALROG | 15.1% | — |

## Reasoning

- Llama 3.1-8B: 14.9 (#321)
- Longcat Flash Chat: 19.0 (#272)

| Benchmark | Llama 3.1-8B | Longcat Flash Chat |
|---|---|---|
| LMArena Hard Prompts | 1175 | 1440 |
| Kagi LLM Benchmark | — | 43.9% |
| NYT Connections (extended) | — | 17.7% |
| CritPt | 0% | — |
| Chess Puzzles | 0% | — |
| DTBench | 50.9% | — |
| LMCA | 5.4% | — |
| Epoch Capabilities Index | 116.57 | — |
| PIQA | 81.2% | — |

## Math

- Llama 3.1-8B: 10.2 (#317)
- Longcat Flash Chat: 39.4 (#107)

| Benchmark | Llama 3.1-8B | Longcat Flash Chat |
|---|---|---|
| LMArena Math | 1179 | 1442 |
| OTIS Mock AIME 2024-2025 | 1.7% | — |
| Omni-MATH | 13.7% | — |
| MATH Level 5 | 22.9% | — |
| GSM8K | 82.4% | — |

## Knowledge

- Llama 3.1-8B: 8.0 (#307)
- Longcat Flash Chat: 40.6 (#116)

| Benchmark | Llama 3.1-8B | Longcat Flash Chat |
|---|---|---|
| LMArena Expert | 1144 | 1454 |
| GPQA Diamond | 27% | — |
| MMLU-Pro | 40.6% | — |
| GPQA (HELM) | 24.7% | — |
| BoolQ | 82.8% | — |
| MMLU | 56.1% | — |

## Multilingual

- Llama 3.1-8B: 34.0 (#249)
- Longcat Flash Chat: 51.9 (#101)

| Benchmark | Llama 3.1-8B | Longcat Flash Chat |
|---|---|---|
| LMArena Non-English | 1148 | 1404 |
| LMArena Chinese | 1151 | 1465 |
| LMArena French | 1177 | 1456 |
| LMArena German | 1144 | 1408 |
| LMArena Japanese | 1061 | 1373 |
| LMArena Korean | 1053 | 1371 |
| LMArena Russian | 1158 | 1395 |
| LMArena Spanish | 1169 | 1445 |

## Instruction Following

- Llama 3.1-8B: 58.9 (#258)
- Longcat Flash Chat: 74.4 (#96)

| Benchmark | Llama 3.1-8B | Longcat Flash Chat |
|---|---|---|
| LMArena Instruction Following | 1159 | 1411 |
| IFEval | 74.3% | — |

## Long Context

- Llama 3.1-8B: 35.8 (#238)
- Longcat Flash Chat: 43.5 (#93)

| Benchmark | Llama 3.1-8B | Longcat Flash Chat |
|---|---|---|
| LMArena Longer Query | 1182 | 1425 |

## Writing & Preference

- Llama 3.1-8B: 29.7 (#290)
- Longcat Flash Chat: 61.0 (#91)

| Benchmark | Llama 3.1-8B | Longcat Flash Chat |
|---|---|---|
| LMArena Text | 1187 | 1427 |
| LMArena Creative Writing | 1154 | 1388 |
| LMArena Multi-Turn | 1172 | 1418 |
| EQ-Bench Creative Writing | 713 | — |
| WildBench | 68.7% | — |

## FAQ

### Is Llama 3.1-8B better than Longcat Flash Chat?

Longcat Flash Chat is the stronger model overall, scoring 42.1 to 23.0 on the Noometry Index.

### Is Llama 3.1-8B or Longcat Flash Chat better for coding?

Longcat Flash Chat scores higher on coding benchmarks: 43.5 versus 20.2 in the Noometry coding category.

### How many benchmarks do Llama 3.1-8B and Longcat Flash Chat share?

17 benchmarks have published results for both models. Llama 3.1-8B has 43 scored results on Noometry and Longcat Flash Chat has 19.