OpenAI is an American artificial intelligence company based in San Francisco, established in December 2015. It develops the GPT family of language models, the o-series reasoning models, DALL-E and Sora for images and video, and Whisper for speech, and runs the ChatGPT assistant.
- Founded
- 2015
- Type
- Private company
- Founders
- Elon Musk, Sam Altman, Ilya Sutskever, Greg Brockman and Trevor Blackwell
- AI lab
- Inference provider
- 121 hosted endpoints
Model family
GPT
OpenAI GPT series of generative models.
Latest GPT models
Models in this family
52 catalogued models
52 models · 26–50
| Select models to compare | Model | Released | Context | Input /M | Output /M | Parameters | Type | I/O | Openness |
|---|---|---|---|---|---|---|---|---|---|
| GPT-5.2 ProOpenAI | December 11, 2025 | 400K | $21.00 | $168.00 | — | Text | image, text, file → text | Closed | |
| GPT-5.2-CodexOpenAIRetired | December 11, 2025 | 400K | $1.75 | $14.00 | — | Text | text, image → text | Closed | |
| GPT-5.1OpenAI | November 13, 2025 | 400K | $1.25 | $10.00 | — | Text | image, text, file → text | Closed | |
| GPT-5.1-CodexOpenAIRetired | November 13, 2025 | 400K | $1.25 | $10.00 | — | Text | text, image → text | Closed | |
| GPT-5.1-Codex-MaxOpenAIRetired | November 13, 2025 | 400K | $1.25 | $10.00 | — | Text | text, image → text | Closed | |
| GPT-5.1-Codex-MiniOpenAIRetired | November 13, 2025 | 400K | $0.25 | $2.00 | — | Text | image, text → text | Closed | |
| GPT-5 Image MiniOpenAI | October 16, 2025 | 400K | $2.50 | $2.00 | — | Image, Text | file, image, text → image, text | Closed | |
| GPT-5 ImageOpenAI | October 14, 2025 | 400K | $10.00 | $10.00 | — | Image, Text | image, text, file → image, text | Closed | |
| GPT-5 ProOpenAI | October 6, 2025 | 400K | $15.00 | $120.00 | — | Text | image, text, file → text | Closed | |
| GPT-5-CodexOpenAIRetired | September 15, 2025 | 400K | — | — | — | Text | text, image → text | Closed | |
| GPT-5OpenAI | August 7, 2025 | 400K | $1.25 | $10.00 | — | Text | text, image, file → text | Closed | |
| GPT-5 MiniOpenAI | August 7, 2025 | 400K | $0.25 | $2.00 | — | Text | text, image, file → text | Closed | |
| GPT-5 NanoOpenAI | August 7, 2025 | 400K | $0.05 | $0.40 | — | Text | text, image, file → text | Closed | |
| GPT-4.1OpenAI | April 14, 2025 | 1M | $2.00 | $8.00 | — | Text | image, text, file → text | Closed | |
| GPT-4.1 MiniOpenAI | April 14, 2025 | 1M | $0.40 | $1.60 | — | Text | image, text, file → text | Closed | |
| GPT-4.1 NanoOpenAI | April 14, 2025 | 1M | $0.10 | $0.40 | — | Text | image, text, file → text | Closed | |
| GPT-4o Mini TranscribeOpenAI | March 20, 2025 | 128K | $1.25 | $5.00 | — | Transcription | audio → transcription | Closed | |
| GPT-4o TranscribeOpenAI | March 20, 2025 | 128K | $2.50 | $10.00 | — | Transcription | audio → transcription | Closed | |
| GPT-4o (2024-11-20)OpenAI | November 20, 2024 | 128K | $2.50 | $10.00 | — | Text | text, image, file → text | Closed | |
| GPT-4o (2024-08-06)OpenAI | August 6, 2024 | 128K | $2.50 | $10.00 | — | Text | text, image, file → text | Closed | |
| GPT-4o-miniOpenAI | July 18, 2024 | 128K | $0.15 | $0.60 | — | Text | text, image, file → text | Closed | |
| GPT-4o-mini (2024-07-18)OpenAI | July 18, 2024 | 128K | $0.15 | $0.60 | — | Text | text, image, file → text | Closed | |
| GPT-4oOpenAI | May 13, 2024 | 128K | $2.50 | $10.00 | — | Text | text, image, file → text | Closed | |
| GPT-4o (2024-05-13)OpenAI | May 13, 2024 | 128K | $5.00 | $15.00 | — | Text | text, image, file → text | Closed | |
| GPT-4OpenAI | November 6, 2023 | 8K | $30.00 | $60.00 | — | Text | text → text | Closed |