o4 Mini

Default

o4-mini is our latest small o-series model. It's optimized for fast, effective reasoning with exceptionally efficient performance in coding and visual tasks.

Intelligence

Basic

Speed

Medium

Price

$1.10 • $1.10

Input • Output

Input

Text, image, audio

Output

Text, image, audio

o4 Mini is o4-mini is our latest small o-series model. it's optimized for fast, effective reasoning with exceptionally efficient performance in coding and visual tasks..

200,000 context window

64,000 max output tokens

June 1, 2024 knowledge cutoff

Reasoning token support

Pricing

Pricing is based on the number of tokens used. For tool-specific models, like search and computer use, there's a fee per tool call. See details in the pricing page.

Text tokens

Per 1M tokens

∙

Batch API price

Input

$1.10

Cached input

$0.275

Output

$1.10

Quick comparison

Input

Cached input

Output

o4 Mini

$1.10

Modalities

Text

Input and output

Image

Input only

Audio

Not supported

Endpoints

Chat Completions

v1/chat/completions

Responses

v1/responses

Batch

v1/batch

Realtime

v1/realtime

Assistants

v1/assistants

Fine-tuning

v1/fine-tuning

Embeddings

v1/embeddings

Image Generation

v1/images/generations

Image Edit

v1/images/edits

Speech Generation

v1/audio/speech

Transcription

v1/audio/transcriptions

Translation

v1/translations

Moderation

v1/moderations

Completions (legacy)

v1/completions

Features

Streaming

Supported

Function calling

Supported

Structured outputs

Supported

Fine-tuning

Supported

Distillation

Not supported

Fast response

Not supported

Cost efficient

Supported

Tools

Tools supported by this model when using the Responses API.

Web search

Supported

Code interpreter

Supported

File search

Supported

Image generation

Supported

MCP

Supported

Snapshots

Snapshots let you lock in a specific version of the model so that performance and behavior remain consistent. Below is a list of all available snapshots and aliases for o4 Mini.

o4-mini

Rate limits

Rate limits ensure fair and reliable access to the API by placing specific caps on requests or tokens used within a given time period. Your usage tier determines how high these limits are set and automatically increases as you send more requests and spend more on the API.

Tier	RPM	TPM	Batch queue limit
Free	Not supported
Tier 1	1000	100,000	1,000,000
Tier 2	2000	2,000,000	2,000,000
Tier 3	5000	4,000,000	40,000,000
Tier 4	10000	10,000,000	1,000,000,000
Tier 5	30000	150,000,000	15,000,000,000