GPT-5.6 Luna
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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
- Yes
- G · Generates
- Images
- H · Deployment
- Cloud (ChatGPT free tier + API)
- I · Inputs
- Text
- J · Jurisdiction
- USA
- K · Key Staffers
- Greg Brockman (President), Jakub Pachocki (Chief Scientist), Brad Lightcap (COO), Fidji Simo (CEO Applications), Sarah Friar (CFO), Mark Chen (SVP Research), Denise Dresser (CRO)
- L · Languages
- English-primary
- M · Model Type
- LLM
- N · Safety Issues
- None reported
- O · Open Source
- Proprietary
- P · Pricing
- API: $0.20/M input, $1.20/M output
- Q · AIDb Rating
- 7/10 · AIDb v2.0 (curated): Capability 7/10 · Currency 10/10 · Access 7/10 · Significance 5/10 → 7.30
- R · What Makes It Special
- OpenAI's GPT-5.6 Luna (July 9, 2026), the fastest and most affordable of the GPT-5.6 models alongside Sol and Terra, roughly the nano tier of earlier GPT-5 families; OpenAI says it nearly matches GPT-5.5's peak performance at less than half the estimated cost. It takes text and images with a 1.05M-token context and 128K-token output at $0.20/$1.20 per million tokens after an 80% price cut, and became the default model for ChatGPT Free and Go users in August 2026.
- 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 LLM from OpenAI, released 2026.
Data completeness 88% · Last verified 2026-08-09 · Primary source ↗
Cite this
“GPT-5.6 Luna.” AIDb — The AI Database. Verified 2026-08-09. https://theaidatabase.com/m/openai-gpt-5-6-luna.html
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