# Llama 2-70B vs Step 3.5 Flash

> Step 3.5 Flash is the stronger model overall, scoring 42.3 to 24.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/llama-2-70b-vs-step-3-5-flash
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Llama 2-70B scores higher in 0 categories and Step 3.5 Flash in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Step 3.5 Flash leads 42.6 to 8.1.

## Snapshot

| | Llama 2-70B | Step 3.5 Flash |
|---|---|---|
| Provider | Meta | StepFun |
| Noometry Index | 24.4 | 42.3 |
| Rank | 349 | 116 |
| Context | — | 256K |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.30 |
| Weights | Open | Open |

## Coding

- Llama 2-70B: 31.4 (#286)
- Step 3.5 Flash: 42.4 (#105)

| Benchmark | Llama 2-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Coding | 1079 | 1436 |

## Reasoning

- Llama 2-70B: 14.4 (#325)
- Step 3.5 Flash: 22.2 (#202)

| Benchmark | Llama 2-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Hard Prompts | 1073 | 1411 |
| NYT Connections (extended) | — | 28.4% |
| DTBench | 41.6% | — |
| BIG-Bench Hard | 64.9% | — |
| CommonsenseQA 2.0 | 50% | — |
| Epoch Capabilities Index | 113.79 | — |
| ForecastBench | 51.4 | — |
| HellaSwag | 85.3% | — |
| LAMBADA | 78.9% | — |
| PIQA | 82.8% | — |
| WinoGrande | 80.2% | — |

## Math

- Llama 2-70B: 8.1 (#326)
- Step 3.5 Flash: 42.6 (#84)

| Benchmark | Llama 2-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Math | 1091 | 1408 |
| MathArena Final-Answer Competitions | — | 66.8% |
| OTIS Mock AIME 2024-2025 | 0% | — |
| MATH Level 5 | 3.3% | — |
| GSM8K | 69.6% | — |

## Knowledge

- Llama 2-70B: 7.4 (#310)
- Step 3.5 Flash: 39.6 (#132)

| Benchmark | Llama 2-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Expert | 1039 | 1421 |
| GPQA Diamond | 26.3% | — |
| ARC (AI2) Challenge | 78.3% | — |
| BoolQ | 88.6% | — |
| MMLU | 69.9% | — |
| OpenBookQA | 60.2% | — |
| TriviaQA | 87.6% | — |

## Multilingual

- Llama 2-70B: 27.7 (#274)
- Step 3.5 Flash: 50.5 (#119)

| Benchmark | Llama 2-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Non-English | 1045 | 1385 |
| LMArena Chinese | 995 | 1447 |
| LMArena French | 1090 | 1421 |
| LMArena German | 1041 | 1405 |
| LMArena Japanese | 927 | 1354 |
| LMArena Korean | 964 | 1352 |
| LMArena Russian | 1083 | 1385 |
| LMArena Spanish | 1143 | 1419 |

## Instruction Following

- Llama 2-70B: 54.9 (#278)
- Step 3.5 Flash: 73.1 (#124)

| Benchmark | Llama 2-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Instruction Following | 1071 | 1385 |

## Long Context

- Llama 2-70B: 32.3 (#270)
- Step 3.5 Flash: 42.8 (#117)

| Benchmark | Llama 2-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Longer Query | 1062 | 1402 |

## Writing & Preference

- Llama 2-70B: 32.3 (#279)
- Step 3.5 Flash: 58.8 (#113)

| Benchmark | Llama 2-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Text | 1115 | 1403 |
| LMArena Creative Writing | 1075 | 1357 |
| LMArena Multi-Turn | 1088 | 1405 |

## FAQ

### Is Llama 2-70B better than Step 3.5 Flash?

Step 3.5 Flash is the stronger model overall, scoring 42.3 to 24.4 on the Noometry Index.

### Is Llama 2-70B or Step 3.5 Flash better for coding?

Step 3.5 Flash scores higher on coding benchmarks: 42.4 versus 31.4 in the Noometry coding category.

### How many benchmarks do Llama 2-70B and Step 3.5 Flash share?

17 benchmarks have published results for both models. Llama 2-70B has 35 scored results on Noometry and Step 3.5 Flash has 19.