DeepSeek V4 Pro vs GPT-5.2
DeepSeek V4 Pro 
GPT-5.2 Verdict
- DeepSeek V4 Pro (max) leads on quality: 64.2 vs 62.0.
- DeepSeek V4 Pro (max) is stronger in agents & tools, composite, instruction following, knowledge, reasoning.
- GPT-5.2 (xhigh) is stronger in coding, long context, maths.
- DeepSeek V4 Pro (max) is 8.8× cheaper ($0.544 vs $4.81 per 1M blended).
| Metric | DeepSeek V4 Pro (max) | GPT-5.2 (xhigh) |
|---|---|---|
| BenchLeader Index | 64.2 | 62.0 |
| Agents & tools score | 70.2 | 56.4 |
| Coding score | 58.8 | 63.2 |
| Composite score | 75.0 | 67.6 |
| Instruction following score | 74.3 | 73.4 |
| Knowledge score | 58.1 | 57.9 |
| Long context score | 66.6 | 67.8 |
| Maths score | 53.7 | 58.4 |
| Reasoning score | 70.9 | 62.8 |
| Blended price $/M | $0.544 | $4.81 |
| Output speed | 81 tok/s | 67 tok/s |
| Time to first answer | 55.6 s | 94.0 s |
| Context window | 1M | 400k |
| GPQA Diamond | 89.7% | 91.4% |
| FrontierMath Tiers 1–3 | 45.3% | 67.4% |
| FrontierMath Tier 4 | 2.4% | 31.7% |
| OTIS Mock AIME | 96.7% | 96.1% |
| SWE-bench Verified (Epoch) | 77.6% | – |
| SimpleQA Verified | 47.0% | 37.1% |
| SciCode | 50.0% | – |
| WeirdML | 48.9% | 72.2% |
| APEX-Agents | – | 34.4% |
| ProofBench | 16.0% | 15.0% |
| AA Intelligence Index | 36.3 | 30.4 |
| IFBench | 76.5% | 75.4% |
| AA-LCR | 80.3% | 82.7% |
| AA-Omniscience | 0.8 | -0.9 |
| Terminal-Bench Hard | 46.2% | 47.0% |
| GPQA Diamond (AA) | 92.8% | 90.3% |
| Humanity's Last Exam (AA) | 41.0% | 37.7% |
| SciCode (AA) | 51.0% | – |
| τ²-Bench Telecom (AA) | 96.2% | 84.8% |
| AIME (Vals) | – | 96.9% |
| LiveCodeBench | 87.5% | 85.4% |
| MMLU-Pro | 87.3% | 86.2% |
| LegalBench | 80.3% | 82.8% |
| CorpFin | 61.4% | 65.9% |
| TaxEval | 72.1% | 75.8% |
| MedQA | – | 94.1% |
| MGSM | – | 94.0% |
| SWE-bench (Vals) | 77.4% | 75.8% |
| GPQA Diamond (Vals) | 89.4% | 91.7% |
| Vals Index | 42.9 | – |
| AIME 2026 | 96.7% | – |
| HMMT February 2026 | 93.9% | – |
| MathArena Apex | 28.1% | – |
| MCP Atlas | – | 67.6% |
| ARC-AGI-1 | – | 86.2% |
| ARC-AGI-2 | – | 52.9% |
| CritPt | 18.0% | 11.6% |
| GDPval (AA) | 49.7% | – |
| τ²-Bench Banking (AA) | 39.6% | – |
| ITBench SRE (AA) | 38.3% | – |
| Analyst Agent (AA) | 18.8% | – |
| APEX-Agents (AA) | 24.3% | – |
| CaseLaw v2 | 59.4% | 66.0% |
| Code Migration | 26.2% | – |
| Excel Modeling Benchmark | 51.6% | – |
| Finance Agent v2 | 44.1% | – |
| Harvey's Legal Agent Benchmark | 3.8% | – |
| Legal Research Bench | 23.1% | – |
| MedCode | 40.5% | 49.8% |
| MedScribe | 75.1% | 84.4% |
| MMMU-Pro (Vals) | – | 86.7% |
| MortgageTax | – | 67.1% |
| ProgramBench | 0.0% | – |
| Public Benefits Bench | 62.9% | – |
| SAGE | – | 49.3% |
| SkillsBench | 51.3% | – |
| Vibe Code Bench v1.1 | 49.9% | 53.5% |
| DrugDiscoveryBench | – | 29.3% |
| Chess Puzzles | 20.0% | 49.0% |
| EBR-bench | – | 23.0% |
| VPCT | – | 84.0% |
| LMCA | 41.2% | 43.9% |
| DTBench | 90.7% | 90.9% |
Data as of 2026-09-19. Best configuration of each model; every score links to its source on the model pages.
DeepSeek V4 Pro vs GPT-5.2: questions
- Is DeepSeek V4 Pro better than GPT-5.2?
- DeepSeek V4 Pro (max) leads on quality: 64.2 vs 62.0. The BenchLeader Index combines every independent quality benchmark; DeepSeek V4 Pro (max) is ahead overall as of 2026-09-19, but check the category scores for your use.
- Is DeepSeek V4 Pro better than GPT-5.2 for coding?
- GPT-5.2 scores higher in coding (63 vs 59 on the category index, where 50 is average).
- Is DeepSeek V4 Pro better than GPT-5.2 for agentic tasks?
- DeepSeek V4 Pro scores higher in agentic tasks (70 vs 56 on the category index, where 50 is average).
- Which is cheaper, DeepSeek V4 Pro or GPT-5.2?
- DeepSeek V4 Pro is cheaper: $0.544 against $4.81 per million tokens, blended at three input tokens per output token.
- Which is faster, DeepSeek V4 Pro or GPT-5.2?
- DeepSeek V4 Pro streams faster: 81 against 67 output tokens per second.
- Which has the larger context window?
- DeepSeek V4 Pro accepts more context: 1M against 400k tokens.