The "omni" multimodal GPT-4. Native text, vision and audio. Retired from ChatGPT in April 2026 but remains available via the API.
GPT-4o is a multimodal AI model from OpenAI. It costs $2.500 per million input tokens and $10.000 per million output tokens (blended $4.750/M), with a 128K-token context window.
GPT-4o costs $2.500 per million input tokens and $10.000 per million output tokens, for a blended reference rate of $4.750 per million tokens.
GPT-4o supports up to 128K tokens of context (128,000 tokens).
GPT-4o is well suited to Native audio + vision, Fast and Wide ecosystem support.
GPT-4o is developed and served by OpenAI. It was released in May 2024.