Anthropic: Claude Opus 4.7 vs OpenAI: GPT-5.5 Pro
Side-by-side comparison — pricing, context window, capabilities, and live leaderboard data.
Key differences
- Anthropic: Claude Opus 4.7 is 83% cheaper per 1K input tokens than OpenAI: GPT-5.5 Pro ($0.0050 vs $0.0300).
- Anthropic: Claude Opus 4.7 is built by Anthropic; OpenAI: GPT-5.5 Pro is built by OpenAI.
Specifications
| Anthropic: Claude Opus 4.7 | OpenAI: GPT-5.5 Pro | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Context window | 1000K | 1050K |
| Max output tokens | 8192 | 8192 |
| Input price / 1K tokens | $0.0050 | $0.0300 |
| Output price / 1K tokens | $0.0250 | $0.1800 |
| Vision support | Yes | Yes |
| Function calling | No | No |
| License | Proprietary | Proprietary |
About Anthropic: Claude Opus 4.7
US·ClosedOpus 4.7 is the next generation of Anthropic's Opus family, built for long-running, asynchronous agents. Building on the coding and agentic strengths of Opus 4.6, it delivers stronger performance on...
View Anthropic: Claude Opus 4.7 reliability and benchmark history →About OpenAI: GPT-5.5 Pro
US·ClosedGPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for...
View OpenAI: GPT-5.5 Pro reliability and benchmark history →Try them yourself
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