# Llama 3.1-70B vs Step 5 Preview

> Step 5 Preview is the stronger model overall, scoring 43.8 to 29.4 on the Noometry Index. Llama 3.1-70B costs 3.6× less per token, which makes it the better buy when Step 5 Preview's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/llama-3-1-70b-vs-step-5-preview
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where Step 5 Preview leads 50.6 to 29.8.
- Llama 3.1-70B is cheaper at $0.40 / $0.40 per million input/output tokens, against $1 / $2.70 for Step 5 Preview.
- Step 5 Preview accepts more context: 1.02M tokens versus 128K.
- Llama 3.1-70B has downloadable open weights; the other is API-only.

## Snapshot

| | Llama 3.1-70B | Step 5 Preview |
|---|---|---|
| Provider | Meta | StepFun |
| Noometry Index | 29.4 | 43.8 |
| Rank | 299 | 78 |
| Context | 128K | 1.02M |
| Input $/M | $0.40 | $1 |
| Output $/M | $0.40 | $2.70 |
| Weights | Open | Proprietary |

## Coding

- Llama 3.1-70B: 29.8 (#292)
- Step 5 Preview: 50.6 (#40)

| Benchmark | Llama 3.1-70B | Step 5 Preview |
|---|---|---|
| LMArena WebDev | — | 1569 |
| SciCode | — | 58.9% |
| WeirdML | 9% | — |
| BigCodeBench Instruct | 46.1% | — |
| LMArena Coding | 1260 | — |
| BigCodeBench Complete | 54.8% | — |

## Agentic & Tool Use

- Llama 3.1-70B: 24.9 (#104)
- Step 5 Preview: —

| Benchmark | Llama 3.1-70B | Step 5 Preview |
|---|---|---|
| TheAgentCompany | 6.9% | — |
| BALROG | 27.9% | — |

## Reasoning

- Llama 3.1-70B: 20.8 (#215)
- Step 5 Preview: 38.0 (#58)

| Benchmark | Llama 3.1-70B | Step 5 Preview |
|---|---|---|
| CritPt | — | 20.9% |
| LMArena Hard Prompts | 1241 | — |
| DTBench | 60% | — |
| LMCA | 14.8% | — |
| Epoch Capabilities Index | 125.91 | — |

## Math

- Llama 3.1-70B: 12.7 (#298)
- Step 5 Preview: —

| Benchmark | Llama 3.1-70B | Step 5 Preview |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 3.6% | — |
| Omni-MATH | 21% | — |
| LMArena Math | 1252 | — |
| MATH Level 5 | 36.7% | — |

## Knowledge

- Llama 3.1-70B: 24.1 (#264)
- Step 5 Preview: —

| Benchmark | Llama 3.1-70B | Step 5 Preview |
|---|---|---|
| GPQA Diamond | 44.2% | — |
| MMLU-Pro | 65.3% | — |
| GPQA (HELM) | 42.6% | — |
| LMArena Expert | 1209 | — |
| MMLU | 80.1% | — |

## Multilingual

- Llama 3.1-70B: 38.9 (#220)
- Step 5 Preview: —

| Benchmark | Llama 3.1-70B | Step 5 Preview |
|---|---|---|
| LMArena Non-English | 1219 | — |
| LMArena Chinese | 1215 | — |
| LMArena French | 1260 | — |
| LMArena German | 1222 | — |
| LMArena Japanese | 1132 | — |
| LMArena Korean | 1140 | — |
| LMArena Russian | 1234 | — |
| LMArena Spanish | 1253 | — |

## Instruction Following

- Llama 3.1-70B: 65.5 (#218)
- Step 5 Preview: —

| Benchmark | Llama 3.1-70B | Step 5 Preview |
|---|---|---|
| IFEval | 82.1% | — |
| LMArena Instruction Following | 1231 | — |

## Long Context

- Llama 3.1-70B: 37.6 (#208)
- Step 5 Preview: —

| Benchmark | Llama 3.1-70B | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | 1241 | — |

## Writing & Preference

- Llama 3.1-70B: 35.6 (#262)
- Step 5 Preview: —

| Benchmark | Llama 3.1-70B | Step 5 Preview |
|---|---|---|
| LMArena Text | 1261 | — |
| LMArena Creative Writing | 1232 | — |
| EQ-Bench Creative Writing | 784 | — |
| WildBench | 75.8% | — |
| LMArena Multi-Turn | 1256 | — |

## FAQ

### Is Llama 3.1-70B better than Step 5 Preview?

Step 5 Preview is the stronger model overall, scoring 43.8 to 29.4 on the Noometry Index. Llama 3.1-70B costs 3.6× less per token, which makes it the better buy when Step 5 Preview's lead doesn't matter for your workload.

### Which is cheaper, Llama 3.1-70B or Step 5 Preview?

Llama 3.1-70B is cheaper. It lists at $0.40 per million input tokens and $0.40 per million output tokens; Step 5 Preview lists at $1 and $2.70.

### Is Llama 3.1-70B or Step 5 Preview better for coding?

Step 5 Preview scores higher on coding benchmarks: 50.6 versus 29.8 in the Noometry coding category.

### Which has the bigger context window?

Step 5 Preview does, with 1.02M tokens against 128K.

### How many benchmarks do Llama 3.1-70B and Step 5 Preview share?

0 benchmarks have published results for both models. Llama 3.1-70B has 35 scored results on Noometry and Step 5 Preview has 3.