---
id: "openai/gpt-4o"
also: ["openai/gpt-4o", "vercel/openai/gpt-4o"]
card_usd_per_m: "2.5 in, 10.0 out, at openai"
cheapest_list_usd_per_m: "2.5 in, 10.0 out, at azure on openrouter"
cheapest_effective_usd_per_m: "2.0742 in, 10.0 out, at azure on vercel"
context: 128000
max_output: 16384
input: ["text", "image", "file"]
output: ["text"]
released: "2024-05-13"
api: ["/api/v1/chat/completions", "/api/v1/completions", "/api/v1/messages", "/api/v1/responses"]
params: ["frequency_penalty", "logit_bias", "logprobs", "max_completion_tokens", "max_tokens", "prediction", "presence_penalty", "response_format", "seed", "stop", "structured_outputs", "temperature", "tool_choice", "tools", "top_logprobs", "top_p", "web_search_options"]
endpoints: 4
gateways: "openrouter (2), vercel (2)"
no_training: 4
trains: 0
retains_prompts: 1
---
# OpenAI: GPT-4o

GPT-4o from OpenAI has broad general knowledge and domain expertise allowing it to follow complex instructions in natural language and solve difficult problems accurately. It matches GPT-4 Turbo performance with a faster and cheaper API.