# Claude 2.1 vs Step 2 16k Exp 202412

> Step 2 16k Exp 202412 is the stronger model overall, scoring 39.2 to 25.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-2-1-vs-step-2-16k-exp-202412
- Last updated: 2026-10-12
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Step 2 16k Exp 202412 leads 36.3 to 10.2.

## Snapshot

| | Claude 2.1 | Step 2 16k Exp 202412 |
|---|---|---|
| Provider | Anthropic | StepFun |
| Noometry Index | 25.2 | 39.2 |
| Rank | 345 | 171 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 2.1: 26.2 (#327)
- Step 2 16k Exp 202412: 38.5 (#174)

| Benchmark | Claude 2.1 | Step 2 16k Exp 202412 |
|---|---|---|
| WeirdML | 7.1% | — |
| LMArena Coding | — | 1316 |

## Reasoning

- Claude 2.1: 21.4 (#221)
- Step 2 16k Exp 202412: 25.9 (#142)

| Benchmark | Claude 2.1 | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Hard Prompts | — | 1299 |
| DTBench | 51% | — |
| Epoch Capabilities Index | 119.27 | — |
| ForecastBench | 54.2 | — |

## Math

- Claude 2.1: 10.2 (#315)
- Step 2 16k Exp 202412: 36.3 (#169)

| Benchmark | Claude 2.1 | Step 2 16k Exp 202412 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.9% | — |
| LMArena Math | — | 1304 |

## Knowledge

- Claude 2.1: 15.4 (#292)
- Step 2 16k Exp 202412: 35.2 (#187)

| Benchmark | Claude 2.1 | Step 2 16k Exp 202412 |
|---|---|---|
| GPQA Diamond | 33% | — |
| LMArena Expert | — | 1279 |
| MMLU | 73.5% | — |

## Multilingual

- Claude 2.1: —
- Step 2 16k Exp 202412: 43.7 (#181)

| Benchmark | Claude 2.1 | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Non-English | — | 1290 |
| LMArena Chinese | — | 1331 |
| LMArena Russian | — | 1324 |

## Instruction Following

- Claude 2.1: —
- Step 2 16k Exp 202412: 67.9 (#192)

| Benchmark | Claude 2.1 | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Instruction Following | — | 1287 |

## Long Context

- Claude 2.1: —
- Step 2 16k Exp 202412: 39.7 (#170)

| Benchmark | Claude 2.1 | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Longer Query | — | 1307 |

## Writing & Preference

- Claude 2.1: —
- Step 2 16k Exp 202412: 52.3 (#173)

| Benchmark | Claude 2.1 | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Text | — | 1321 |
| LMArena Creative Writing | — | 1328 |
| LMArena Multi-Turn | — | 1292 |

## FAQ

### Is Claude 2.1 better than Step 2 16k Exp 202412?

Step 2 16k Exp 202412 is the stronger model overall, scoring 39.2 to 25.2 on the Noometry Index.

### Is Claude 2.1 or Step 2 16k Exp 202412 better for coding?

Step 2 16k Exp 202412 scores higher on coding benchmarks: 38.5 versus 26.2 in the Noometry coding category.

### How many benchmarks do Claude 2.1 and Step 2 16k Exp 202412 share?

0 benchmarks have published results for both models. Claude 2.1 has 7 scored results on Noometry and Step 2 16k Exp 202412 has 12.