GPT-5.5 Pro
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A to Z
- A · App
- Yes
- B · Built By
- OpenAI
- C · CEO & Politics
- Sam Altman — Independent; self-described 'politically homeless' (2025); former Democratic donor; $1M personal donation to Trump inaugural fund (2025)
- D · Date
- 2026
- E · Expertise
- Beginner (app available)
- F · Free Tier
- No free tier
- G · Generates
- Images
- H · Deployment
- Cloud only (proprietary)
- I · Inputs
- Text+Image+Audio
- J · Jurisdiction
- USA
- K · Key Staffers
- Sam Altman (CEO), Greg Brockman (President), Jakub Pachocki (Chief Scientist)
- L · Languages
- English-primary
- M · Model Type
- Multimodal LLM
- N · Safety Issues
- Use official system card/docs for model-specific risk details.
- O · Open Source
- Proprietary
- P · Pricing
- API: $30/M input, $180/M output
- Q · AIDb Rating
- [UNKNOWN]
- R · What Makes It Special
- OpenAI's GPT-5.5 Pro (April 23, 2026), the version of GPT-5.5 that uses more compute to think harder, for harder questions and higher-accuracy work, rolled out to ChatGPT Pro, Business and Enterprise users; testers found its answers more comprehensive, well-structured and accurate than GPT-5.4 Pro's, especially in business, legal, education and data science, and it scored 90.1% on BrowseComp. In the API it runs through the Responses API with a 1.05M-token context at $30/$180 per million tokens.
- S · Stock / Status
- Private (~$852B valuation, Mar 2026)
- T · Training Cutoff
- [UNKNOWN]
- U · Users
- [UNKNOWN]
- V · Voice Chat
- Yes
- W · Weights
- API only
- X · X Handle
- @OpenAI
- Y · Year Founded
- [UNKNOWN]
- Z · Bottom Line
- Proprietary Multimodal LLM from OpenAI, released 2026.
Data completeness 85% · Last verified 2026-05-12 · Primary source ↗
Cite this
“GPT-5.5 Pro.” AIDb — The AI Database. Verified 2026-05-12. https://theaidatabase.com/m/openai-gpt-5-5-pro.html
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