Opus 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...
Model details →Anthropic: Claude Opus 4.7 vs OpenAI: GPT-5.5
Anthropic: Claude Opus 4.7 and OpenAI: GPT-5.5 are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...
Model details →Side-by-side comparison
| Capability | Anthropic: Claude Opus 4.7 | OpenAI: GPT-5.5 | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1M | 1.1M | 🏆 OpenAI: GPT-5.5 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $5.00 | $5.00 | Tie |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $25.00 | $30.00 | 🏆 Anthropic: Claude Opus 4.7 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Anthropic: Claude Opus 4.7 better than OpenAI: GPT-5.5?
Anthropic: Claude Opus 4.7 and OpenAI: GPT-5.5 are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
What's the price difference between Anthropic: Claude Opus 4.7 and OpenAI: GPT-5.5?
Input: $5.00 vs $5.00 per 1M tokens. Output: $25.00 vs $30.00 per 1M tokens.
What context windows do Anthropic: Claude Opus 4.7 and OpenAI: GPT-5.5 support?
Anthropic: Claude Opus 4.7 supports up to 1M tokens. OpenAI: GPT-5.5 supports up to 1.1M tokens.
Do both Anthropic: Claude Opus 4.7 and OpenAI: GPT-5.5 support tool calling?
Anthropic: Claude Opus 4.7: yes. OpenAI: GPT-5.5: yes.
Compare Anthropic: Claude Opus 4.7 with other models
vs Anthropic Claude Haiku Latestvs Anthropic Claude Sonnet Latestvs Anthropic: Claude Fable Latestvs Anthropic: Claude Opus Latest