GPT-5.5
SOTA Terminal-Bench 82.7; GDPval 84.9; OSWorld 78.7; ties Opus 4.7 on SWE-V
- Vendor
- OpenAI
- License
- closed
- Released
- 2026-04-24
- Parameters
- Undisclosed
- Context window
- 1M tokens
Capabilities
GPT-5.5 supports vision (image input), audio input, tool use, extended reasoning and computer use, with a 1M-token context window.
- Vision — image input
- Audio — audio input
- Tools — function calling / tool use
- Reasoning — extended thinking
- Computer use — desktop / browser control
Benchmarks
| SWE-Bench Verified | 87.6% |
|---|---|
| SWE-Bench Pro | 58.6% |
| Terminal-Bench | 82.7% |
| Reasoning composite | 95 / 100 |
The reasoning composite is a directional 0–100 score aggregated across public reasoning evals — comparable within this matrix, not an official vendor number.
Pricing
$5/M input tokens · $30/M output tokens.