Claude Opus 4.7 vs GPT-5.5 Pro
Side-by-side comparison. Updated 2026-06-04.
Verdict
Claude Opus 4.7 wins on higher overall score (9.6 vs 9.5, +0.1).
- ~50% cheaper input
At a Glance
| Attribute | Claude Opus 4.7 | GPT-5.5 Pro |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Tags | general | Reasoning |
| Context | 200,000 tokens | 1,050,000 tokens |
| Input price | $15.00/1M | $30.00/1M |
| Output price | $180.00/1M | $180.00/1M |
| Input modalities | Text | Text |
| Output modalities | Text | Text |
Claude Opus 4.7 Strengths
- Built for long-running asynchronous agent pipelines
- More efficient tokenizer (1.47x on English text)
- Stronger multi-step task reliability than 4.5
- Improved knowledge work — documents, presentations, data
- Maintains coherence across very long outputs