Claude Opus 5 vs GPT-6.1 Sol
Claude Opus 5 
GPT-6.1 Sol Verdict
- GPT-6.1 Sol (max) leads on quality: 69.3 vs 68.3.
- Claude Opus 5 (high) is stronger in agents & tools, composite, human preference, multimodal.
- GPT-6.1 Sol (max) is stronger in coding, knowledge, long context, maths, reasoning.
- GPT-6.1 Sol (max) is 2.5× cheaper ($4.00 vs $10.00 per 1M blended).
| Metric | Claude Opus 5 (high) | GPT-6.1 Sol (max) |
|---|---|---|
| BenchLeader Index | 68.3 | 69.3 |
| Agents & tools score | 65.1 | 63.9 |
| Coding score | 69.2 | 72.4 |
| Composite score | 84.1 | 79.0 |
| Human preference score | 68.9 | 68.1 |
| Knowledge score | 76.9 | 78.8 |
| Long context score | 64.7 | 66.8 |
| Maths score | 71.1 | 72.5 |
| Multimodal score | 66.4 | 66.2 |
| Reasoning score | 72.7 | 76.4 |
| Blended price $/M | $10.00 | $4.00 |
| Output speed | 54 tok/s | 56 tok/s |
| Time to first answer | 20.4 s | 326.9 s |
| Context window | 1M | 1.1M |
| GPQA Diamond | – | 95.4% |
| FrontierMath Tiers 1–3 | – | 93.7% |
| FrontierMath Tier 4 | – | 100.0% |
| OTIS Mock AIME | – | 100.0% |
| SimpleQA Verified | – | 73.9% |
| Terminal-Bench | 50.3% | 58.2% |
| OSWorld-Verified 2.0 | 29.0% | – |
| SciCode | 54.3% | 54.2% |
| WeirdML | 91.6% | – |
| APEX-Agents | – | 60.0% |
| LMArena Text | 1490 | 1484 |
| LMArena Hard Prompts | 1515 | 1507 |
| LMArena Coding | 1534 | 1545 |
| LMArena WebDev | 1657 | 1755 |
| LMArena Vision | 1319 | 1288 |
| LMArena Agent | 8 | 11.7 |
| LiveBench | – | 81.6% |
| LiveBench Reasoning | – | 92.6% |
| LiveBench Coding | – | 80.4% |
| LiveBench Agentic Coding | – | 54.5% |
| LiveBench Mathematics | – | 96.8% |
| LiveBench Data Analysis | – | 82.7% |
| LiveBench Language | – | 90.1% |
| LiveBench Instruction Following | – | 74.2% |
| AA Intelligence Index v4.3.2 | 48.1 | 51.8 |
| AA-LCR | 79.0% | 83.0% |
| MMMU-Pro | 82.4% | 86.0% |
| AA-Omniscience | 33.7 | 41.5 |
| GPQA Diamond (AA) | 93.7% | – |
| Humanity's Last Exam (AA) | 52.8% | 52.9% |
| SciCode (AA) | 55.4% | 54.2% |
| IOI | – | 96.9% |
| Vals Index | – | 61.1 |
| ARC-AGI-1 | 97.5% | 96.5% |
| ARC-AGI-2 | 88.3% | 94.2% |
| ARC-AGI-3 | 30.2% | 96.2% |
| CritPt | 28.3% | 31.7% |
| GDPval-AA v2.1 | 54.7% | 53.8% |
| τ³-Banking (AA) | 44.7% | – |
| Analyst Agent (AA) | – | 50.0% |
| BioMysteryBench | – | 79.6% |
| Code Migration | – | 65.1% |
| CyberBench | – | 39.3% |
| Excel Modeling Benchmark | – | 70.8% |
| Finance Agent v2 | – | 52.0% |
| Harvey's Legal Agent Benchmark | – | 5.4% |
| Legal Research Bench | – | 38.5% |
| MedCode | – | 48.8% |
| MedScribe | – | 86.5% |
| MysteryMechanism | – | 46.4% |
| Public Benefits Bench | – | 59.3% |
| SAGE | – | 46.5% |
| SREBench | – | 50.8% |
| Tax Agent Bench | – | 62.3% |
| Terminal-Bench 4.0 (Vals) | – | 55.0% |
| Vibe Code Bench v1.1 | – | 88.9% |
| LMArena Maths | 1521 | 1488 |
| LMArena Creative Writing | 1471 | 1462 |
| LMArena Instruction Following | 1497 | 1488 |
| LMArena Multi-turn | 1484 | 1487 |
| LMArena Longer Queries | 1504 | 1496 |
| LMArena Document | 1490 | – |
| Chess Puzzles | – | 61.0% |
| EBR-bench | – | 54.3% |
| Mystery Game Puzzles | – | 80.0% |
| DeepSWE v1.1 | 72.8% | – |
| LMCA | 63.7% | – |
| DTBench | 97.9% | – |
| CursorBench | 44.7% | – |
| ALE-Bench | 2164.6 | – |
| Terminal-Bench 4.0 (AA) | 46.0% | 56.1% |
| Terminal-Bench 2.1 (AA) | 87.6% | – |
| AutomationBench | 53.6% | 64.9% |
| GDP.pdf | 19.6% | 31.0% |
| MLCR | 59.4% | 33.9% |
| Harvey LAB | – | 6.9% |
| AA-Omniscience: accuracy | 58.9% | 62.1% |
| AA-Omniscience: non-hallucination | 38.8% | 45.7% |
| AA-Briefcase v1.1 | 1561 | 1557 |
Data as of 2026-10-11. Best configuration of each model; every score links to its source on the model pages.
Claude Opus 5 vs GPT-6.1 Sol: questions
- Is Claude Opus 5 better than GPT-6.1 Sol?
- GPT-6.1 Sol (max) leads on quality: 69.3 vs 68.3. The BenchLeader Index combines every independent quality benchmark; GPT-6.1 Sol (max) is ahead overall as of 2026-10-11, but check the category scores for your use.
- Is Claude Opus 5 better than GPT-6.1 Sol for coding?
- GPT-6.1 Sol scores higher in coding (72 vs 69 on the category index, where 50 is average).
- Is Claude Opus 5 better than GPT-6.1 Sol for agentic tasks?
- Claude Opus 5 scores higher in agentic tasks (65 vs 64 on the category index, where 50 is average).
- Which is cheaper, Claude Opus 5 or GPT-6.1 Sol?
- GPT-6.1 Sol is cheaper: $4.00 against $10.00 per million tokens, blended at three input tokens per output token.
- Which is faster, Claude Opus 5 or GPT-6.1 Sol?
- GPT-6.1 Sol streams faster: 56 against 54 output tokens per second.
- Which has the larger context window?
- GPT-6.1 Sol accepts more context: 1.1M against 1M tokens.