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OpenAI · API model

GPT-4o

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...

Context
128K
Input / 1M
$2.5
Output / 1M
$10
Released
May 13, 2024
View on OpenRouterFind it in the catalog
Specifications

GPT-4o specs

Provider
OpenAI
Type
API model
Model ID
openai/gpt-4o
Context window
128,000 tokens128K
Input price
$2.5per 1M input tokens
Output price
$10per 1M output tokens
Accepts
file, image, text
Produces
text
Released
May 13, 2024
Source
OpenRouter
Overview

About GPT-4o

GPT-4o is an API model from OpenAI, released on May 13, 2024, with a context window of 128,000 tokens, pricing of $2.5 per million input tokens and $10 per million output tokens. It accepts file, image, text input and produces text output.

At listed prices, a request with 10,000 input tokens and 1,000 output tokens costs about $0.035.

Specs are sourced from OpenRouter and were last checked on Sep 12, 2026. Always confirm current pricing and limits with the provider before production use.

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FAQ

GPT-4o questions

What is the context window of GPT-4o?

GPT-4o supports a context window of 128,000 tokens.

How much does GPT-4o cost?

GPT-4o is listed at $2.5 per million input tokens and $10 per million output tokens on OpenRouter.

When was GPT-4o released?

GPT-4o was published on May 13, 2024.

What inputs does GPT-4o accept?

GPT-4o accepts file, image, text input and produces text output.