GPT-4o

Name: GPT-4o API
Brand: OpenAI
Price: 2.5 USD

API pricing per million tokens

gpt-4oChecked 5h ago

Price history

List price since Jun 19, 2024, from Internet Archive snapshots of the OpenRouter catalog, then daily reads.

Seen	Model	Old price	New price	Change
Apr 10, 2025	GPT-4oCached input Free to $1.25	Cached input Free	Cached input $1.25
Oct 6, 2024	GPT-4oInput $5 to $2.5, Output $15 to $10	Input $5Output $15	Input $2.5Output $10	-50%

ModelInputOutputCachedContextReleased

GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs.

Takes text, image, files in and returns text. First listed Jun 19, 2024. Blended price $4.38 per 1M tokens at 3 input to 1 output.

How much does GPT-4o cost?

$2.5 per million input tokens and $10 per million output tokens, with cached input at $1.25, or $1.25 and $5 through the Batch API.

What is the context window of GPT-4o?

128K tokens, with up to 16K tokens of output.

Where is GPT-4o cheapest?

Of 2 routes tracked, Azure AI Foundry is cheapest at $2.5 input and $10 output per million tokens.

Has GPT-4o's price changed?

Yes. The output price went from $15 to $10, first seen Oct 6, 2024.

List prices from providers' pages on the date shown; your contract may differ. Logos via logo.dev; trademarks belong to their owners.