GPT-5.5vsOpus 4.7
Across 12 shared benchmarks, GPT-5.5 leads overall: GPT-5.5 wins 8, Opus 4.7 wins 3, with 1 ties and an average score difference of +4.59.
GPT-5.58 wins(67%)Ties1(25%)3 winsOpus 4.7
Benchmark scores
Grouped by capability, sorted by largest gap within each. 12 shared benchmarks.
General Knowledge
Even 5/5| Benchmark | GPT-5.5 | Opus 4.7 | Diff |
|---|---|---|---|
| ARC-AGI-2 | 851 / 59Thinking High (No Tools) | 75.809 / 59最高（无工具） | +9.20 |
| HLE | 52.2013 / 157Thinking High (With Tools) | 54.708 / 157Extended (with tools) | -2.50 |
| ARC-AGI | 953 / 65极高强度思考（无工具） | 93.509 / 65Thinking High (No Tools) | +1.50 |
| GPQA Diamond | 93.606 / 178Thinking High (No Tools) | 94.204 / 178Extended (no tools) | -0.60 |
| ARC-AGI-3 | 02 / 6Thinking High (No Tools) | 05 / 6Thinking High (No Tools) | — |
AI Agent - Tool Usage
GPT-5.5 3/3| Benchmark | GPT-5.5 | Opus 4.7 | Diff |
|---|---|---|---|
| TerminalBench 2.1 | 83.403 / 13Thinking High (With Tools) | 69.708 / 13Thinking High (With Tools) | +13.70 |
| Terminal Bench 2.0 | 82.701 / 46Thinking High (With Tools) | 69.406 / 46Extended (with tools) | +13.30 |
| OSWorld-Verified | 78.704 / 18Thinking High (With Tools) | 786 / 18Extended (with tools) | +0.70 |
Math and Reasoning
GPT-5.5 2/2| Benchmark | GPT-5.5 | Opus 4.7 | Diff |
|---|---|---|---|
| FrontierMath - Tier 4 | 35.407 / 80Thinking High (With Tools) | 22.9012 / 80极高强度思考（无工具） | +12.50 |
| FrontierMath | 51.702 / 60Thinking High (With Tools) | 43.806 / 60极高强度思考（无工具） | +7.90 |
AI Agent - Information Search
GPT-5.5 1/1| Benchmark | GPT-5.5 | Opus 4.7 | Diff |
|---|---|---|---|
| BrowseComp | 84.405 / 45Thinking High (With Tools + Internet) | 79.3013 / 45Extended (with tools) | +5.10 |
Coding and Software Engineer
Opus 4.7 1/1| Benchmark | GPT-5.5 | Opus 4.7 | Diff |
|---|---|---|---|
| SWE-Bench Pro - Public | 58.607 / 43Thinking High (With Tools) | 64.304 / 43Extended (with tools) | -5.70 |
Specs
| Field | GPT-5.5 | Opus 4.7 |
|---|---|---|
| Publisher | OpenAI | Anthropic |
| Release date | 2026-04-23 | 2026-04-16 |
| Model type | Reasoning model | Reasoning model |
| Architecture | Dense | Dense |
| Parameters | Not available | Not available |
| Context length | 1000K | 1000K |
| Max output | 128K | 128K |
API pricing
Prices use DataLearner records when available; missing fields are not inferred.
| Item | GPT-5.5 | Opus 4.7 |
|---|---|---|
| Text input | $0.5 / 1M tokens | $5 / 1M tokens |
| Text output | $30 / 1M tokens | $25 / 1M tokens |
| Cache read | $0.5 / 1M tokens | $0.5 / 1M tokens |
| Cache write | $6.25 / 1M tokens | $6.25 / 1M tokens |
Summary
- GPT-5.5leads in:AI Agent - Tool Usage (3/3), Math and Reasoning (2/2), AI Agent - Information Search (1/1)
- Opus 4.7leads in:Coding and Software Engineer (1/1)
- Tied in:General Knowledge
On average across the 12 shared benchmarks, GPT-5.5 scores 4.59 higher.
Largest single-benchmark gap: TerminalBench 2.1 — GPT-5.5 83.40 vs Opus 4.7 69.70 (+13.70).
Page generated from structured model, pricing and benchmark records. No real-time LLM is used to write the prose.