# DeepSeek Coder 1.3B vs GPT-5.5 Pro

> GPT-5.5 Pro has enough public results to be ranked (#7); DeepSeek Coder 1.3B does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/deepseek-coder-1-3b-vs-gpt-5-5-pro
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both.
- DeepSeek Coder 1.3B has downloadable open weights; the other is API-only.

## Snapshot

| | DeepSeek Coder 1.3B | GPT-5.5 Pro |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Noometry Index | 34.5 | 64.3 |
| Rank | — | 7 |
| Context | — | 1.05M |
| Input $/M | — | $30 |
| Output $/M | — | $180 |
| Weights | Open | Proprietary |

## Coding

- DeepSeek Coder 1.3B: 30.7 (#282)
- GPT-5.5 Pro: —

| Benchmark | DeepSeek Coder 1.3B | GPT-5.5 Pro |
|---|---|---|
| BigCodeBench Instruct | 22.8% | — |
| BigCodeBench Complete | 29.6% | — |
| HumanEval+ | 60.4% | — |
| MBPP+ | 54.8% | — |

## Reasoning

- DeepSeek Coder 1.3B: —
- GPT-5.5 Pro: 73.6 (#7)

| Benchmark | DeepSeek Coder 1.3B | GPT-5.5 Pro |
|---|---|---|
| Epoch Capabilities Index | 62.18 | 162.45 |
| ARC-AGI-2 | — | 84.6% |
| SimpleBench | — | 76.9% |
| ARC-AGI-1 | — | 96.5% |
| CritPt | — | 30.6% |
| Chess Puzzles | — | 64% |
| DTBench | — | 96% |
| LMCA | — | 53.9% |
| WinoGrande | 53.3% | — |

## Math

- DeepSeek Coder 1.3B: —
- GPT-5.5 Pro: 83.8 (#8)

| Benchmark | DeepSeek Coder 1.3B | GPT-5.5 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 87.7% |
| FrontierMath Tier 4 | — | 78% |
| OTIS Mock AIME 2024-2025 | — | 100% |
| FrontierMath (Feb 2025 set) | — | 52.4% |
| FrontierMath Tier 4 (v1) | — | 39.6% |
| GSM8K | 4.4% | — |

## Knowledge

- DeepSeek Coder 1.3B: —
- GPT-5.5 Pro: 64.2 (#17)

| Benchmark | DeepSeek Coder 1.3B | GPT-5.5 Pro |
|---|---|---|
| GPQA Diamond | — | 93.9% |
| ARC (AI2) Challenge | 25.4% | — |
| MMLU | 25.8% | — |

## FAQ

### Is DeepSeek Coder 1.3B better than GPT-5.5 Pro?

GPT-5.5 Pro has enough public results to be ranked (#7); DeepSeek Coder 1.3B does not yet, so treat this comparison as directional.

### How many benchmarks do DeepSeek Coder 1.3B and GPT-5.5 Pro share?

1 benchmark has published results for both models. DeepSeek Coder 1.3B has 9 scored results on Noometry and GPT-5.5 Pro has 14.