Models/OpenAI
GPT-5.5
OpenAI · GPTreleased 2026-04-23proprietary
OpenAI's smartest and most intuitive model — successor to GPT-5, with major coding, research, and document workflow gains. GPT-5.5 Pro variant also available for heavier reasoning.
Specifications
- Context window
- 400,000 tokens
- Modality
- text, vision, audio
- License
- proprietary
- Family
- GPT
- Release date
- 2026-04-23
Links
Benchmarks
Benchmark scores ingest in Phase 2 from the Open LLM Leaderboard, LMSys Chatbot Arena, and vendor-published evaluations.
Related news
The aggregator will surface release announcements and analysis tied to GPT-5.5 as it goes live.