OpenAI's current frontier model: 'A new class of intelligence for coding and professional work.' 1M context, knowledge cutoff Dec 2025, $5/$30 per MTok. GPT-5.5 Pro as the stronger variant ($30/$180 per MTok).
At a glance
Context
1.1M tokens
Input
text, image, audio, code
Official benchmarks
| Benchmark | Score | Source |
|---|---|---|
| Codeforces Rating | 3168 Elo | Source ↗ |
Only official figures with a source.
Specifications
- Status
- Released
- Date
- April 25, 2026
- Lab
- OpenAI
- Origin
- US
- Type
- reasoning, multimodal
- Open weights
- —
- License
- proprietary
- Context
- 1.1M tokens
- Input
- text, image, audio, code
- Output
- text, image, audio, code