Model comparison
DeepSeek Coder 1.3B vs GPT-5 Pro
GPT-5 Pro has enough public results to be ranked (#64); DeepSeek Coder 1.3B does not yet, so treat this comparison as directional.
Last verified . 1 shared benchmarks.
DeepSeekSummary
- They share 1 benchmark with published results for both. DeepSeek Coder 1.3B scores higher in 0 categories and GPT-5 Pro in 1 category; one gap is clear of the uncertainty.
- The widest gap is in coding, where GPT-5 Pro leads 44.0 to 31.2.
- DeepSeek Coder 1.3B has downloadable open weights; the other is API-only.
Side by side
| DeepSeek Coder 1.3B | GPT-5 Pro | |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Noometry Index | 35.0 | 46.4 |
| Released | 2023-11-02 | 2025-10-06 |
| Weights | Open | Proprietary |
| Context window | — | 400K |
| Max output | — | 272K |
| Input $ / M tokens | — | $15 |
| Output $ / M tokens | — | $120 |
| Results tracked | 9 | 12 |
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Category by category
Coding GPT-5 Pro leads
DeepSeek Coder 1.3B: 31.2 (#287), GPT-5 Pro: 44.0 (#80)
| Benchmark | DeepSeek Coder 1.3B | GPT-5 Pro |
|---|---|---|
| WeirdML | — | 60.4% |
| BigCodeBench Instruct | 22.8% | — |
| BigCodeBench Complete | 29.6% | — |
| AlgoTune | — | 1.31 |
| HumanEval+ | 60.4% | — |
| MBPP+ | 54.8% | — |
Reasoning Not comparable
DeepSeek Coder 1.3B: —, GPT-5 Pro: 38.9 (#62)
| Benchmark | DeepSeek Coder 1.3B | GPT-5 Pro |
|---|---|---|
| Epoch Capabilities Index | 63.6 | 150.28 |
| ARC-AGI-2 | — | 18.3% |
| SimpleBench | — | 61.6% |
| Kagi LLM Benchmark | — | 76.8% |
| ARC-AGI-1 | — | 70.2% |
| EnigmaEval | — | 18.8% |
| WinoGrande | 53.3% | — |
Math Not comparable
DeepSeek Coder 1.3B: —, GPT-5 Pro: 48.5 (#63)
| Benchmark | DeepSeek Coder 1.3B | GPT-5 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 55.8% |
| FrontierMath Tier 4 | — | 19.5% |
| FrontierMath Tier 4 (v1) | — | 14.6% |
| GSM8K | 4.4% | — |
Knowledge Not comparable
DeepSeek Coder 1.3B: —, GPT-5 Pro: 56.7 (#42)
| Benchmark | DeepSeek Coder 1.3B | GPT-5 Pro |
|---|---|---|
| Humanity's Last Exam | — | 31.6% |
| ARC (AI2) Challenge | 25.4% | — |
| MMLU | 25.8% | — |
Frequently asked questions
Is DeepSeek Coder 1.3B better than GPT-5 Pro?
GPT-5 Pro has enough public results to be ranked (#64); DeepSeek Coder 1.3B does not yet, so treat this comparison as directional.
Is DeepSeek Coder 1.3B or GPT-5 Pro better for coding?
GPT-5 Pro scores higher on coding benchmarks: 44.0 versus 31.2 in the Noometry coding category.
How many benchmarks do DeepSeek Coder 1.3B and GPT-5 Pro share?
1 benchmark has published results for both models. DeepSeek Coder 1.3B has 9 scored results on Noometry and GPT-5 Pro has 12.