# Claude Haiku 5.5 vs Deepseek Coder v2

> Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 35.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-haiku-5-5-vs-deepseek-coder-v2
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Claude Haiku 5.5 leads 73.6 to 34.9.
- Deepseek Coder v2 has downloadable open weights; the other is API-only.

## Snapshot

| | Claude Haiku 5.5 | Deepseek Coder v2 |
|---|---|---|
| Provider | Anthropic | DeepSeek |
| Noometry Index | 49.5 | 35.9 |
| Rank | 52 | 220 |
| Context | 1M | — |
| Input $/M | $0.10 | — |
| Output $/M | $0.50 | — |
| Weights | Proprietary | Open |

## Coding

- Claude Haiku 5.5: 49.2 (#50)
- Deepseek Coder v2: 38.1 (#183)

| Benchmark | Claude Haiku 5.5 | Deepseek Coder v2 |
|---|---|---|
| LMArena WebDev | 1587 | — |
| BigCodeBench Instruct | — | 48.2% |
| LMArena Coding | — | 1251 |
| BigCodeBench Complete | — | 59.7% |
| HumanEval+ | — | 82.3% |
| MBPP+ | — | 75.1% |

## Reasoning

- Claude Haiku 5.5: 35.2 (#69)
- Deepseek Coder v2: 23.6 (#176)

| Benchmark | Claude Haiku 5.5 | Deepseek Coder v2 |
|---|---|---|
| NYT Connections (extended) | 65.7% | — |
| LMArena Hard Prompts | — | 1207 |
| Mystery Game Puzzles | 30% | — |
| WinoGrande | — | 83.7% |

## Math

- Claude Haiku 5.5: 73.6 (#18)
- Deepseek Coder v2: 34.9 (#190)

| Benchmark | Claude Haiku 5.5 | Deepseek Coder v2 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 75.1% | — |
| FrontierMath Tier 4 | 46.3% | — |
| OTIS Mock AIME 2024-2025 | 98.9% | — |
| LMArena Math | — | 1241 |
| GSM8K | — | 94.5% |

## Knowledge

- Claude Haiku 5.5: 50.8 (#70)
- Deepseek Coder v2: 32.3 (#212)

| Benchmark | Claude Haiku 5.5 | Deepseek Coder v2 |
|---|---|---|
| GPQA Diamond | 89.6% | — |
| SimpleQA Verified | 23.8% | — |
| LMArena Expert | — | 1181 |
| ARC (AI2) Challenge | — | 64.3% |

## Multimodal

- Claude Haiku 5.5: 43.7 (#21)
- Deepseek Coder v2: —

| Benchmark | Claude Haiku 5.5 | Deepseek Coder v2 |
|---|---|---|
| Furniture Assembly | 47.5% | — |

## Multilingual

- Claude Haiku 5.5: —
- Deepseek Coder v2: 36.3 (#240)

| Benchmark | Claude Haiku 5.5 | Deepseek Coder v2 |
|---|---|---|
| LMArena Non-English | — | 1182 |
| LMArena Chinese | — | 1201 |
| LMArena French | — | 1185 |
| LMArena German | — | 1164 |
| LMArena Japanese | — | 1126 |
| LMArena Korean | — | 1104 |
| LMArena Russian | — | 1188 |
| LMArena Spanish | — | 1153 |

## Instruction Following

- Claude Haiku 5.5: —
- Deepseek Coder v2: 61.7 (#242)

| Benchmark | Claude Haiku 5.5 | Deepseek Coder v2 |
|---|---|---|
| LMArena Instruction Following | — | 1180 |

## Long Context

- Claude Haiku 5.5: —
- Deepseek Coder v2: 37.0 (#224)

| Benchmark | Claude Haiku 5.5 | Deepseek Coder v2 |
|---|---|---|
| LMArena Longer Query | — | 1219 |

## Writing & Preference

- Claude Haiku 5.5: —
- Deepseek Coder v2: 38.2 (#253)

| Benchmark | Claude Haiku 5.5 | Deepseek Coder v2 |
|---|---|---|
| LMArena Text | — | 1191 |
| LMArena Creative Writing | — | 1120 |
| LMArena Multi-Turn | — | 1177 |

## FAQ

### Is Claude Haiku 5.5 better than Deepseek Coder v2?

Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 35.9 on the Noometry Index.

### Is Claude Haiku 5.5 or Deepseek Coder v2 better for coding?

Claude Haiku 5.5 scores higher on coding benchmarks: 49.2 versus 38.1 in the Noometry coding category.

### How many benchmarks do Claude Haiku 5.5 and Deepseek Coder v2 share?

0 benchmarks have published results for both models. Claude Haiku 5.5 has 9 scored results on Noometry and Deepseek Coder v2 has 24.