GPT-4.5
Open in the interactive archive →
Download the covers: Floppy card · VHS cover · Vinyl cover
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
- 2025
- E · Expertise
- Beginner (app available)
- F · Free Tier
- Yes
- G · Generates
- Images
- H · Deployment
- Cloud only (proprietary)
- I · Inputs
- Text+Image+Audio
- 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
- Multimodal LLM
- N · Safety Issues
- None reported
- O · Open Source
- Proprietary
- P · Pricing
- Retired (GPT-4.5 Preview API shut down July 14, 2025)
- Q · AIDb Rating
- 5/10 · AIDb v2.0 (curated): Capability 5.5/10 · Currency 1/10 · Access 7/10 · Significance 5/10 → 4.75
- R · What Makes It Special
- OpenAI's GPT-4.5 (February 27, 2025), a research preview it called its largest and best model for chat yet, built by scaling unsupervised learning for broader knowledge, a deeper understanding of the world, greater 'EQ' and fewer hallucinations; it reached ChatGPT Pro users first, then Plus, Team, Enterprise and Edu, and API developers on all paid tiers at $75/$150 per million tokens. The gpt-4.5-preview API was shut down July 14, 2025 in favor of GPT-4.1.
- 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 2025.
Data completeness 88% · Last verified 2026-06-11 · Primary source ↗
Cite this
“GPT-4.5.” AIDb — The AI Database. Verified 2026-06-11. https://theaidatabase.com/m/gpt-4-5-openai.html
More from OpenAI
ChatGPT · ChatGPT Agent · ChatGPT Canvas · ChatGPT Images 2.0 · CLIP · CLIP (ViT B/32) · CLIP (ViT L/14) · Codex (original)