Claude Opus 4.7 vs Claude Sonnet 4.5
Claude Opus 4.7 Verdict
- Claude Opus 4.7 leads on quality: 64.1 vs 57.9.
- Claude Opus 4.7 is stronger in agents & tools, coding, composite, human preference, instruction following, knowledge, long context, maths, multimodal, reasoning.
- Claude Sonnet 4.5 (high) is 1.7× cheaper ($6.00 vs $10.00 per 1M blended).
| Metric | Claude Opus 4.7 | Claude Sonnet 4.5 (high) |
|---|---|---|
| BenchLeader Index | 64.1 | 57.9 |
| Agents & tools score | 68.4 | – |
| Coding score | 64.7 | 56.4 |
| Composite score | 73.6 | – |
| Human preference score | 69.0 | 65.3 |
| Instruction following score | 55.4 | – |
| Knowledge score | 65.6 | – |
| Long context score | 63.3 | – |
| Maths score | 65.4 | – |
| Multimodal score | 65.1 | – |
| Reasoning score | 66.5 | 66.4 |
| Blended price $/M | $10.00 | $6.00 |
| Output speed | 49 tok/s | 40 tok/s |
| Time to first answer | 16.4 s | 1.2 s |
| Context window | 1M | 1M |
| Humanity's Last Exam | 36.2% | – |
| Terminal-Bench | 80.2% | – |
| SimpleBench | 61.7% | – |
| WeirdML | 76.4% | – |
| FrontierCode | 38.5% | – |
| GSO-Bench | 44.1% | – |
| Epoch Capabilities Index | 156.3 | – |
| LMArena Text | 1494 | 1456 |
| LMArena Hard Prompts | 1519 | 1487 |
| LMArena Coding | 1547 | 1520 |
| LMArena WebDev | 1557 | 1393 |
| LMArena Vision | 1317 | – |
| AA Intelligence Index | 40.7 | – |
| IFBench | 58.6% | – |
| AA-LCR | 78.7% | – |
| MMMU-Pro | 78.8% | – |
| AA-Omniscience | 27.3 | – |
| Terminal-Bench Hard | 51.5% | – |
| GPQA Diamond (AA) | 91.4% | – |
| Humanity's Last Exam (AA) | 42.3% | – |
| τ²-Bench Telecom (AA) | 88.6% | – |
| AIME (Vals) | 96.3% | – |
| LiveCodeBench | 85.1% | – |
| MMLU-Pro | 89.9% | – |
| LegalBench | 85.3% | – |
| CorpFin | 66.1% | – |
| TaxEval | 75.3% | – |
| Terminal-Bench 2.1 (Vals) | 68.5% | – |
| SWE-bench (Vals) | 82.0% | – |
| GPQA Diamond (Vals) | 90.2% | – |
| Vals Index | 56.1 | – |
| HiL-Bench | 41.7% | – |
| EQ-Bench 4 | 1311 | – |
| Kagi LLM Benchmark | 73.3% | – |
| SWE-bench Verified (bash only) | – | 71.4% |
Data as of 2026-09-13. Best configuration of each model; every score links to its source on the model pages.
Claude Opus 4.7 vs Claude Sonnet 4.5: questions
- Is Claude Opus 4.7 better than Claude Sonnet 4.5?
- Claude Opus 4.7 leads on quality: 64.1 vs 57.9. The BenchLeader Index combines every independent quality benchmark; Claude Opus 4.7 is ahead overall as of 2026-09-13, but check the category scores for your use.
- Is Claude Opus 4.7 better than Claude Sonnet 4.5 for coding?
- Claude Opus 4.7 scores higher in coding (65 vs 56 on the category index, where 50 is average).
- Which is cheaper, Claude Opus 4.7 or Claude Sonnet 4.5?
- Claude Sonnet 4.5 is cheaper: $6.00 against $10.00 per million tokens, blended at three input tokens per output token.
- Which is faster, Claude Opus 4.7 or Claude Sonnet 4.5?
- Claude Opus 4.7 streams faster: 49 against 40 output tokens per second.
- Which has the larger context window?
- Both accept 1M tokens of context.