Claude Opus 4.7 scores 47.7 on the Respan Index (#27), ahead of GPT-5.4 at 47.2 (#28). They split the 33 benchmarks both report evenly. GPT-5.4 is 1.8x cheaper per token at list price. GPT-5.4 has the larger context window (1.1M tokens).
* Estimated: no published scores in that category. How the Respan Index works
| 70.2% |
| 78.6% |
| Furniture Assembly (Epoch AI) | 33.3% | 37.5% |
| GPQA Diamond | 94.2% | 92.8% |
| LiveBench Agentic Coding (LiveBench) | 50.7% | 53.8% |
| LiveBench Coding (LiveBench) | 82.1% | 77.5% |
| LiveBench Data Analysis (LiveBench) | 78.3% | 79.3% |
| LiveBench Instruction Following (LiveBench) | 66.7% | 70.2% |
| LiveBench Language (LiveBench) | 77.9% | 82.6% |
| LiveBench Mathematics (LiveBench) | 92.9% | 94.1% |
| LiveBench Reasoning (LiveBench) | 87.2% | 88.1% |
| MirrorCode (Epoch AI) | 31.1% | 15.6% |
| Mystery Game Puzzles (Epoch AI) | 28% | 37% |
| OTIS Mock AIME 2024-2025 (Epoch AI) | 97.8% | 97.8% |
| SAGE (Vals AI) | 56.1% | 43.3% |
| SimpleQA Verified | 51.7% | 45.1% |
| SWE-bench Verified (Epoch AI) | 83.5% | 76.9% |
| Vending-Bench 2 (Andon Labs) | 10936.76 | 6144.18 |
| WeirdML (Håvard Tveit Ihle) | 76.4% | 77.7% |
| LMArena Elo | 1483 | 1453 |
| LMArena Vision (LMArena) | 1298 | 1284 |
| LMArena WebDev (LMArena) | 1557 | 1395 |
| AIME 2026 | 95.8% | 99.2% |
| BrowseComp | 79.8% | 82.7% |
| Humanity's Last Exam (no tools) | 46.9% | 39.8% |
| Humanity's Last Exam (with tools) | 54.7% | 52.1% |
| OSWorld-Verified | 82.8% | 75% |
| SWE-Bench Pro | 64.3% | 57.7% |
| tau2-bench Banking Knowledge (Sierra) | 40.2% | 39.4% |
| GSO Opt@1 (GSO) | 42.2% | 30.4% |
Higher is better. Each score links to where it was published.