Claude Opus 4.7vsGPT-5.5
Anthropic vs OpenAI
Overview
A comparison between Anthropic's previous-gen flagship Claude Opus 4.7 and OpenAI's GPT-5.5. Claude Opus 4.7 delivers solid coding (SWE-bench Pro 64.3), while GPT-5.5 brings newer architecture with GPQA Diamond 93.6 and ARC-AGI-2 85.0. Both are priced identically at $2.5/1M input tokens.
Specs & Pricing
| Claude Opus 4.7 | GPT-5.5 | |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Type | foundation | foundation |
| Parameters | 非公開 | 非公開 |
| Context Window | — | — |
| Open Source | — | — |
| Input Price (/1M tokens) | $2.5 | $2.5 |
| Output Price (/1M tokens) | — | — |
Recommendations by Use Case
Which model fits your task best
Claude Opus 4.7's SWE-bench Pro 64.3 beats GPT-5.5's 58.6, giving it the edge for practical coding tasks.
GPT-5.5 achieves GPQA Diamond 93.6, ARC-AGI-2 85.0, and HLE 52.2 — as a newer model, it leads in overall reasoning capability.
Cost-Performance→Tie
Both models cost $2.5/1M input tokens — no cost advantage either way.
Frequently Asked Questions
Should I choose Claude Opus 4.7 or GPT-5.5?
Choose Claude Opus 4.7 for coding-heavy workloads; choose GPT-5.5 for overall reasoning and the latest benchmark performance. Same price — decide by use case.
Is Claude Opus 4.7 still relevant?
Yes. SWE-bench Pro 64.3 remains highly competitive, beating GPT-5.5 on coding. Even after Opus 4.8's release, it's a cost-effective choice.