GPT-5.5vsGPT-5.4
Across 12 shared benchmarks, GPT-5.5 leads overall: GPT-5.5 wins 11, GPT-5.4 wins 0, with 1 ties and an average score difference of +5.84.
GPT-5.511 wins(92%)Ties1(0%)0 winsGPT-5.4
Benchmark scores
Grouped by capability, sorted by largest gap within each. 12 shared benchmarks.
General Knowledge
GPT-5.5 4/5| Benchmark | GPT-5.5 | GPT-5.4 | Diff |
|---|---|---|---|
| ARC-AGI-2 | 851 / 59Thinking High (No Tools) | 77.107 / 59Normal (No Tools) | +7.90 |
| ARC-AGI | 953 / 65极高强度思考（无工具） | 93.707 / 65Normal (No Tools) | +1.30 |
| GPQA Diamond | 93.606 / 178Thinking High (No Tools) | 92.8010 / 178极高强度思考（无工具） | +0.80 |
| HLE | 52.2013 / 157Thinking High (With Tools) | 52.1014 / 157极高强度思考（工具） | +0.10 |
| ARC-AGI-3 | 02 / 6Thinking High (No Tools) | 04 / 6Thinking High (No Tools) | — |
AI Agent - Tool Usage
GPT-5.5 2/2| Benchmark | GPT-5.5 | GPT-5.4 | Diff |
|---|---|---|---|
| Terminal Bench 2.0 | 82.701 / 46Thinking High (With Tools) | 75.104 / 46极高强度思考（工具） | +7.60 |
| OSWorld-Verified | 78.704 / 18Thinking High (With Tools) | 757 / 18极高强度思考（工具） | +3.70 |
Math and Reasoning
GPT-5.5 2/2| Benchmark | GPT-5.5 | GPT-5.4 | Diff |
|---|---|---|---|
| FrontierMath - Tier 4 | 35.407 / 80Thinking High (With Tools) | 27.1011 / 80极高强度思考（无工具） | +8.30 |
| FrontierMath | 51.702 / 60Thinking High (With Tools) | 47.605 / 60极高强度思考（无工具） | +4.10 |
Agent Level Benchmark
GPT-5.5 1/1| Benchmark | GPT-5.5 | GPT-5.4 | Diff |
|---|---|---|---|
| τ²-Bench - Telecom | 985 / 35Thinking High (With Tools) | 64.3030 / 35Normal (With Tools) | +33.70 |
AI Agent - Information Search
GPT-5.5 1/1| Benchmark | GPT-5.5 | GPT-5.4 | Diff |
|---|---|---|---|
| BrowseComp | 84.405 / 45Thinking High (With Tools + Internet) | 82.7011 / 45极高强度思考（工具） | +1.70 |
Coding and Software Engineer
GPT-5.5 1/1| Benchmark | GPT-5.5 | GPT-5.4 | Diff |
|---|---|---|---|
| SWE-Bench Pro - Public | 58.607 / 43Thinking High (With Tools) | 57.7010 / 43极高强度思考（无工具） | +0.90 |
Specs
| Field | GPT-5.5 | GPT-5.4 |
|---|---|---|
| Publisher | OpenAI | OpenAI |
| Release date | 2026-04-23 | 2026-03-05 |
| Model type | Reasoning model | Multimodal model |
| Architecture | Dense | Dense |
| Parameters | Not available | Not available |
| Context length | 1000K | 1M |
| Max output | 128K | 125K |
API pricing
Prices use DataLearner records when available; missing fields are not inferred.
| Item | GPT-5.5 | GPT-5.4 |
|---|---|---|
| Text input | $0.5 / 1M tokens | $2.5 / 1M tokens |
| Text output | $30 / 1M tokens | $15 / 1M tokens |
| Cache read | $0.5 / 1M tokens | Not public |
| Cache write | $6.25 / 1M tokens | $0.25 / 1M tokens |
Summary
- GPT-5.5leads in:General Knowledge (4/5), AI Agent - Tool Usage (2/2), Math and Reasoning (2/2), Agent Level Benchmark (1/1), AI Agent - Information Search (1/1), Coding and Software Engineer (1/1)
On average across the 12 shared benchmarks, GPT-5.5 scores 5.84 higher.
Largest single-benchmark gap: τ²-Bench - Telecom — GPT-5.5 98 vs GPT-5.4 64.30 (+33.70).
Page generated from structured model, pricing and benchmark records. No real-time LLM is used to write the prose.