o4-mini

reasoningdeprecatedproprietary

Status: Shut down · Succeeded by gpt-5.6-terra

Intelligence
Reasoning
Speed
Context
200K
Max output
100K
Input price
$1.1/1M tokens
Output price
$4.4/1M tokens
Snapshots

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing
Fine-tuning

Details

Provider OpenAI
Creator openai
Familyo4
Licenseproprietary
Statusdeprecated
Typereasoning
Input modalitiestext, image
Output modalitiestext
Open weightNo
Parameters—
Architecture—
Context window200K tokens
Max input—
Max output100K tokens
Reasoning tokensYes
Knowledge cutoff
Release date
Deprecation date
Retirement date
Successorgpt-5.6-terra
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs
File Searchfile_search
Search across uploaded files
Code Interpretercode_interpreter
Execute code in a sandbox
MCPmcp
Connect to Model Context Protocol servers
Web Searchweb_search
Search the web for information

Endpoints

Chat CompletionsPOST
Generate chat responses with messageshttps://api.openai.com/v1/chat/completions
ResponsesPOST
Stateful multi-turn conversationshttps://api.openai.com/v1/responses
BatchPOST
Async batch processing at lower costhttps://api.openai.com/v1/batches
Fine-tuningPOST
Train custom models on your datahttps://api.openai.com/v1/fine_tuning/jobs

Pricing

Fine-tuning
TrainingInputCached inputOutput
Standard$100$4$1$16
Batch$100$2$0.5$8

Family Comparison: o4

ModelContextMax outPricing
o4-mini200K100K$1.1$4.4
o4-mini-deep-research200K100K$2$8

API

GET/v1/models/openai/o4-mini