# Claude 2.1 vs Tulu 3 (Tülu 3) 70B

> Tulu 3 (Tülu 3) 70B is the stronger model overall, scoring 33.0 to 25.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-2-1-vs-tulu-3-70b
- Last updated: 2026-10-12
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. Claude 2.1 scores higher in 0 categories and Tulu 3 (Tülu 3) 70B in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in coding, where Tulu 3 (Tülu 3) 70B leads 36.0 to 26.2.
- The biggest single-benchmark swing is GPQA Diamond: 33% for Claude 2.1 and 46.3% for Tulu 3 (Tülu 3) 70B.
- Tulu 3 (Tülu 3) 70B has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 2.1 | Tulu 3 (Tülu 3) 70B |
|---|---|---|
| Provider | Anthropic | Allen Institute for AI (Ai2) |
| Noometry Index | 25.2 | 33.0 |
| Rank | 345 | 251 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Claude 2.1: 26.2 (#327)
- Tulu 3 (Tülu 3) 70B: 36.0 (#214)

| Benchmark | Claude 2.1 | Tulu 3 (Tülu 3) 70B |
|---|---|---|
| WeirdML | 7.1% | — |
| LMArena Coding | — | 1235 |

## Reasoning

- Claude 2.1: 21.4 (#221)
- Tulu 3 (Tülu 3) 70B: 23.9 (#169)

| Benchmark | Claude 2.1 | Tulu 3 (Tülu 3) 70B |
|---|---|---|
| LMArena Hard Prompts | — | 1220 |
| DTBench | 51% | — |
| Epoch Capabilities Index | 119.27 | — |
| ForecastBench | 54.2 | — |

## Math

- Claude 2.1: 10.2 (#315)
- Tulu 3 (Tülu 3) 70B: 14.2 (#303)

| Benchmark | Claude 2.1 | Tulu 3 (Tülu 3) 70B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.9% | 4.4% |
| LMArena Math | — | 1242 |
| MATH Level 5 | — | 42.7% |

## Knowledge

- Claude 2.1: 15.4 (#292)
- Tulu 3 (Tülu 3) 70B: 25.0 (#264)

| Benchmark | Claude 2.1 | Tulu 3 (Tülu 3) 70B |
|---|---|---|
| GPQA Diamond | 33% | 46.3% |
| MMLU | 73.5% | — |

## Multilingual

- Claude 2.1: —
- Tulu 3 (Tülu 3) 70B: 39.9 (#222)

| Benchmark | Claude 2.1 | Tulu 3 (Tülu 3) 70B |
|---|---|---|
| LMArena Non-English | — | 1236 |
| LMArena Chinese | — | 1249 |
| LMArena Russian | — | 1246 |

## Instruction Following

- Claude 2.1: —
- Tulu 3 (Tülu 3) 70B: 64.8 (#227)

| Benchmark | Claude 2.1 | Tulu 3 (Tülu 3) 70B |
|---|---|---|
| LMArena Instruction Following | — | 1233 |

## Long Context

- Claude 2.1: —
- Tulu 3 (Tülu 3) 70B: 37.1 (#222)

| Benchmark | Claude 2.1 | Tulu 3 (Tülu 3) 70B |
|---|---|---|
| LMArena Longer Query | — | 1224 |

## Writing & Preference

- Claude 2.1: —
- Tulu 3 (Tülu 3) 70B: 45.6 (#223)

| Benchmark | Claude 2.1 | Tulu 3 (Tülu 3) 70B |
|---|---|---|
| LMArena Text | — | 1256 |
| LMArena Creative Writing | — | 1231 |
| LMArena Multi-Turn | — | 1252 |

## FAQ

### Is Claude 2.1 better than Tulu 3 (Tülu 3) 70B?

Tulu 3 (Tülu 3) 70B is the stronger model overall, scoring 33.0 to 25.2 on the Noometry Index.

### Is Claude 2.1 or Tulu 3 (Tülu 3) 70B better for coding?

Tulu 3 (Tülu 3) 70B scores higher on coding benchmarks: 36.0 versus 26.2 in the Noometry coding category.

### How many benchmarks do Claude 2.1 and Tulu 3 (Tülu 3) 70B share?

2 benchmarks have published results for both models. Claude 2.1 has 7 scored results on Noometry and Tulu 3 (Tülu 3) 70B has 14.