What the evidence says
- Developer
- OpenAI
- Released
- May 13, 2024
- Domains
- Multimodal · Language · Audio · Speech · Vision
- Tasks
- Chat · Image generation · Audio generation · Vision-language generation · Table tasks · Language modeling/generation · Question answering · Speech recognition (ASR) · Speech-to-text
- Access
- API access
- Weights
- Closed weights
Platform facts
OpenRouter's platform listing, retrieved July 22, 2026. Routed platform prices, not first-party provider prices.
- Input price
- $2.50 per 1M tokens
- Output price
- $10.00 per 1M tokens
- Context length
- 128,000 tokens
- Listed on OpenRouter
- May 13, 2024
Common questions
What is GPT-4o?
GPT-4o is a OpenAI model released May 13, 2024, according to Epoch AI's reviewed catalog record. The record classifies it under multimodal, language, audio, speech, vision.
How does GPT-4o rank on LMArena?
No board Model Gauntlet mirrors currently lists this exact model revision under a reviewed identity, so no rating is reported here.
What does GPT-4o cost?
OpenRouter lists it at $2.50 per million input tokens and $10.00 per million output tokens, retrieved July 22, 2026. Those are the platform's routed prices, not first-party provider prices.