# Llama 3-70B vs Step 3.5 Flash

> Step 3.5 Flash is the stronger model overall, scoring 41.7 to 28.5 on the Noometry Index.

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

## Summary

- They share 17 benchmarks with published results for both. Llama 3-70B 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 40.6 to 12.0.

## Snapshot

| | Llama 3-70B | Step 3.5 Flash |
|---|---|---|
| Provider | Meta | StepFun |
| Noometry Index | 28.5 | 41.7 |
| Rank | 317 | 116 |
| Context | — | 256K |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.30 |
| Weights | Open | Open |

## Coding

- Llama 3-70B: 35.3 (#215)
- Step 3.5 Flash: 41.7 (#106)

| Benchmark | Llama 3-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Coding | 1206 | 1436 |
| BigCodeBench Instruct | 43.6% | — |
| BigCodeBench Complete | 54.5% | — |
| HumanEval+ | 72% | — |
| MBPP+ | 69% | — |

## Agentic & Tool Use

- Llama 3-70B: 20.9 (#132)
- Step 3.5 Flash: —

| Benchmark | Llama 3-70B | Step 3.5 Flash |
|---|---|---|
| Cybench | 5% | — |

## Reasoning

- Llama 3-70B: 17.4 (#284)
- Step 3.5 Flash: 21.2 (#202)

| Benchmark | Llama 3-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Hard Prompts | 1195 | 1411 |
| Kagi LLM Benchmark | 35.1% | — |
| NYT Connections (extended) | — | 28.4% |
| DTBench | 54.2% | — |
| Epoch Capabilities Index | 122.91 | — |
| ForecastBench | 57.1 | — |
| WinoGrande | 83.5% | — |

## Math

- Llama 3-70B: 12.0 (#299)
- Step 3.5 Flash: 40.6 (#77)

| Benchmark | Llama 3-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Math | 1218 | 1408 |
| MathArena Final-Answer Competitions | — | 66.8% |
| OTIS Mock AIME 2024-2025 | 4.3% | — |
| MATH Level 5 | 22.6% | — |

## Knowledge

- Llama 3-70B: 20.8 (#272)
- Step 3.5 Flash: 39.0 (#127)

| Benchmark | Llama 3-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Expert | 1149 | 1422 |
| GPQA Diamond | 40.6% | — |
| MMLU | 79.3% | — |

## Multilingual

- Llama 3-70B: 33.8 (#246)
- Step 3.5 Flash: 50.7 (#115)

| Benchmark | Llama 3-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Non-English | 1142 | 1386 |
| LMArena Chinese | 1114 | 1448 |
| LMArena French | 1231 | 1421 |
| LMArena German | 1169 | 1404 |
| LMArena Japanese | 1017 | 1353 |
| LMArena Korean | 1017 | 1350 |
| LMArena Russian | 1159 | 1385 |
| LMArena Spanish | 1241 | 1419 |

## Instruction Following

- Llama 3-70B: 62.8 (#233)
- Step 3.5 Flash: 73.3 (#119)

| Benchmark | Llama 3-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Instruction Following | 1194 | 1385 |

## Long Context

- Llama 3-70B: 35.6 (#235)
- Step 3.5 Flash: 42.8 (#112)

| Benchmark | Llama 3-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Longer Query | 1174 | 1402 |

## Writing & Preference

- Llama 3-70B: 43.0 (#225)
- Step 3.5 Flash: 59.0 (#108)

| Benchmark | Llama 3-70B | Step 3.5 Flash |
|---|---|---|
| LMArena Text | 1221 | 1403 |
| LMArena Creative Writing | 1210 | 1357 |
| LMArena Multi-Turn | 1223 | 1405 |

## FAQ

### Is Llama 3-70B better than Step 3.5 Flash?

Step 3.5 Flash is the stronger model overall, scoring 41.7 to 28.5 on the Noometry Index.

### Is Llama 3-70B or Step 3.5 Flash better for coding?

Step 3.5 Flash scores higher on coding benchmarks: 41.7 versus 35.3 in the Noometry coding category.

### How many benchmarks do Llama 3-70B and Step 3.5 Flash share?

17 benchmarks have published results for both models. Llama 3-70B has 31 scored results on Noometry and Step 3.5 Flash has 19.