o4-mini is a small o-series reasoning model, optimized for fast, effective reasoning with efficient performance in coding and visual tasks.
o4-mini is a small o-series reasoning model, optimized for fast, effective reasoning with efficient performance in coding and visual tasks.
o4 Mini is an AI model from OpenAI, available on ZeroTwo. It costs $1.10 per million input tokens and $4.40 per million output tokens, has a 200,000-token context window, can return up to 64,000 output tokens, and has a knowledge cutoff of June 1, 2024.
Intelligence
Basic
Speed
Medium
Price
$1.10 • $4.40
Input • Output
Input
Text, Image
Output
Text
o4-mini is a small o-series reasoning model, optimized for fast, effective reasoning with 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
$4.40
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
Questions
How much does o4 Mini cost?
o4 Mini is priced at $1.10 per million input tokens and $4.40 per million output tokens, with cached input at $0.275 per million. On ZeroTwo it is included in your plan's credits rather than billed per token.
What is o4 Mini's context window?
o4 Mini accepts up to 200,000 tokens of context and can return up to 64,000 output tokens.
What is o4 Mini's knowledge cutoff date?
o4 Mini has a training knowledge cutoff of June 1, 2024. For anything later than that, use a model with web search enabled.
Can I use o4 Mini for free?
You can try o4 Mini on ZeroTwo's free plan, which includes a monthly credit allowance across every model in the catalogue. Heavier use moves to a paid plan rather than a per-token bill.