GPT-5.5 Instant (May 2026)
GPT-5.5 Instant (May 2026) is an AI model from OpenAI.
- Publisher
- OpenAI
- Family
- GPT
- Input
- Output
- License
- proprietary
- Released
- 5 May 2026
Cite
Notes
Only stored in your browser.
Weights
Closed
API only
Input
$5
/1M tok
Output
$30
/1M tok
Price & speed via Artificial Analysis · ranked across tracked models
Reported on 6 evals across 4 domains - best 84.6% on GPQA Diamond · #101 of 511