GPT-4o
| Generative Pre-trained Transformer 4 Omni (GPT-4o) | |
|---|---|
| Developer(s) | OpenAI |
| Initial release | May 13, 2024 |
| Preview release | ChatGPT-4o-latest (2025-03-26)
/ March 26, 2025 |
| Predecessor | GPT-4 Turbo |
| Successor | |
| Type | |
| License | Proprietary |
| Website | openai |
GPT-4o ("o" for "omni") is a multilingual, multimodal generative pre-trained transformer developed by OpenAI and released in May 2024. It can process and generate text, images and audio. GPT-4o is free, but ChatGPT Plus subscribers have higher usage limits.
GPT-4o's audio-generation capabilities were used in ChatGPT's Advanced Voice Mode. In OpenAI's application programming interface (API), GPT-4o is faster and cheaper than its predecessor, GPT-4 Turbo. On July 18, 2024, OpenAI released GPT-4o mini, a smaller version of GPT-4o which replaced GPT-3.5 Turbo on the ChatGPT interface. GPT-4o's ability to generate images was released later, in March 2025, when it replaced DALL-E 3 in ChatGPT.