# DeepSeek-V2.5 (Sep 2024) vs GPT-5 Pro

> GPT-5 Pro is the stronger model overall, scoring 46.4 to 37.6 on the Noometry Index.

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

## Summary

- The widest gap is in knowledge, where GPT-5 Pro leads 56.7 to 34.8.
- DeepSeek-V2.5 (Sep 2024) has downloadable open weights; the other is API-only.

## Snapshot

| | DeepSeek-V2.5 (Sep 2024) | GPT-5 Pro |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Noometry Index | 37.6 | 46.4 |
| Rank | 200 | 64 |
| Context | — | 400K |
| Input $/M | — | $15 |
| Output $/M | — | $120 |
| Weights | Open | Proprietary |

## Coding

- DeepSeek-V2.5 (Sep 2024): 31.7 (#281)
- GPT-5 Pro: 44.0 (#80)

| Benchmark | DeepSeek-V2.5 (Sep 2024) | GPT-5 Pro |
|---|---|---|
| Aider Polyglot | 17.8% | — |
| WeirdML | — | 60.4% |
| BigCodeBench Instruct | 48.6% | — |
| LMArena Coding | 1309 | — |
| BigCodeBench Complete | 53.2% | — |
| AlgoTune | — | 1.31 |
| HumanEval+ | 83.5% | — |
| MBPP+ | 74.1% | — |

## Reasoning

- DeepSeek-V2.5 (Sep 2024): 25.6 (#145)
- GPT-5 Pro: 38.9 (#62)

| Benchmark | DeepSeek-V2.5 (Sep 2024) | GPT-5 Pro |
|---|---|---|
| ARC-AGI-2 | — | 18.3% |
| SimpleBench | — | 61.6% |
| Kagi LLM Benchmark | — | 76.8% |
| ARC-AGI-1 | — | 70.2% |
| EnigmaEval | — | 18.8% |
| LMArena Hard Prompts | 1289 | — |
| Epoch Capabilities Index | — | 150.28 |

## Math

- DeepSeek-V2.5 (Sep 2024): 35.9 (#177)
- GPT-5 Pro: 48.5 (#63)

| Benchmark | DeepSeek-V2.5 (Sep 2024) | GPT-5 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 55.8% |
| FrontierMath Tier 4 | — | 19.5% |
| LMArena Math | 1288 | — |
| FrontierMath Tier 4 (v1) | — | 14.6% |

## Knowledge

- DeepSeek-V2.5 (Sep 2024): 34.8 (#193)
- GPT-5 Pro: 56.7 (#42)

| Benchmark | DeepSeek-V2.5 (Sep 2024) | GPT-5 Pro |
|---|---|---|
| Humanity's Last Exam | — | 31.6% |
| LMArena Expert | 1266 | — |

## Multilingual

- DeepSeek-V2.5 (Sep 2024): 42.5 (#193)
- GPT-5 Pro: —

| Benchmark | DeepSeek-V2.5 (Sep 2024) | GPT-5 Pro |
|---|---|---|
| LMArena Non-English | 1273 | — |
| LMArena Chinese | 1318 | — |
| LMArena French | 1289 | — |
| LMArena German | 1258 | — |
| LMArena Japanese | 1228 | — |
| LMArena Korean | 1209 | — |
| LMArena Russian | 1289 | — |
| LMArena Spanish | 1248 | — |

## Instruction Following

- DeepSeek-V2.5 (Sep 2024): 67.5 (#194)
- GPT-5 Pro: —

| Benchmark | DeepSeek-V2.5 (Sep 2024) | GPT-5 Pro |
|---|---|---|
| LMArena Instruction Following | 1280 | — |

## Long Context

- DeepSeek-V2.5 (Sep 2024): 39.5 (#174)
- GPT-5 Pro: —

| Benchmark | DeepSeek-V2.5 (Sep 2024) | GPT-5 Pro |
|---|---|---|
| LMArena Longer Query | 1301 | — |

## Writing & Preference

- DeepSeek-V2.5 (Sep 2024): 49.8 (#187)
- GPT-5 Pro: —

| Benchmark | DeepSeek-V2.5 (Sep 2024) | GPT-5 Pro |
|---|---|---|
| LMArena Text | 1294 | — |
| LMArena Creative Writing | 1285 | — |
| LMArena Multi-Turn | 1297 | — |

## FAQ

### Is DeepSeek-V2.5 (Sep 2024) better than GPT-5 Pro?

GPT-5 Pro is the stronger model overall, scoring 46.4 to 37.6 on the Noometry Index.

### Is DeepSeek-V2.5 (Sep 2024) or GPT-5 Pro better for coding?

GPT-5 Pro scores higher on coding benchmarks: 44.0 versus 31.7 in the Noometry coding category.

### How many benchmarks do DeepSeek-V2.5 (Sep 2024) and GPT-5 Pro share?

0 benchmarks have published results for both models. DeepSeek-V2.5 (Sep 2024) has 22 scored results on Noometry and GPT-5 Pro has 12.