GPT-5.5vsGPT-5.2
Across 10 shared benchmarks, GPT-5.5 leads overall: GPT-5.5 wins 9, GPT-5.2 wins 1, with 0 ties and an average score difference of +10.53.
GPT-5.59 wins(90%)(10%)1 winGPT-5.2
Benchmark scores
Grouped by capability, sorted by largest gap within each. 10 shared benchmarks.
General Knowledge
GPT-5.5 4/4| Benchmark | GPT-5.5 | GPT-5.2 | Diff |
|---|---|---|---|
| ARC-AGI-2 | 851 / 58极高强度思考（无工具） | 54.2019 / 58深度思考（无工具、并行） | +30.80 |
| HLE | 52.2010 / 149Thinking High (With Tools) | 45.5027 / 149Deep Thinking (With Tools + Internet) | +6.70 |
| ARC-AGI | 953 / 65极高强度思考（无工具） | 90.5015 / 65 |
Specs
| Field | GPT-5.5 | GPT-5.2 |
|---|---|---|
| Publisher | OpenAI | OpenAI |
| Release date | 2026-04-23 | 2025-12-11 |
| Model type | Reasoning model | AI model |
| Architecture | Dense | Dense |
| Parameters | 0.0 | 0.0 |
| Context length | 1000K | 400K |
| Max output | 131072 | Not available |
API pricing
Prices use DataLearner records when available; missing fields are not inferred.
| Item | GPT-5.5 | GPT-5.2 |
|---|---|---|
| Text input | $0.5 / 1M tokens | $1.75 / 1M tokens |
| Text output | $30 / 1M tokens | $14 / 1M tokens |
| Cache read | $0.5 / 1M tokens | $0.175 / 1M tokens |
| Cache write | $6.25 / 1M tokens | $1.75 / 1M tokens |
Summary
- GPT-5.5leads in:General Knowledge (4/4), Math and Reasoning (2/2), AI Agent - Information Search (1/1), Coding and Software Engineer (1/1), Productivity Knowledge (1/1)
- GPT-5.2leads in:Agent Level Benchmark (1/1)
On average across the 10 shared benchmarks, GPT-5.5 scores 10.53 higher.
Largest single-benchmark gap: ARC-AGI-2 — GPT-5.5 85 vs GPT-5.2 54.20 (+30.80).
Page generated from structured model, pricing and benchmark records. No real-time LLM is used to write the prose.