GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of [GPT-4 Turbo](/models/openai/gpt-4-turbo) while being twice as...
OpenAI: GPT-4o — OpenAI. Context window 128,000 tokens. API pricing (per 1M tokens): Input $2.5, Output $10. License: Proprietary. LMArena 1,300. GPQA Diamond 49.2%.
| Provider | OpenAI |
|---|---|
| API model ID | openai/gpt-4o |
| Tier | Mid |
| Context window | 128,000 tokens |
| Max output | 16,384 tokens |
| License | Proprietary |
| API pricing (per 1M tokens) · Input | $2.5 |
| API pricing (per 1M tokens) · Output | $10 |
| LMArena | 1,300 (gpt-4o-2024-05-13) |
| GPQA Diamond | 49.2% |
LMArena (CC-BY 4.0, best reasoning setting, 2026-10-02) · GPQA Diamond: Epoch AI (CC-BY 4.0)
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