o3

reasoning

o3 is a well-rounded and powerful model across domains. It sets a new

Snapshotso3-2025-04-16
Intelligence
Reasoning
Speed
Context
200K
Max output
100K
Input price
$2/1M tokens
Output price
$8/1M tokens
Capabilities
vision
tool call
structured output
reasoning
json mode
streaming
fine tuning
batch
Details
Provider OpenAI
Creator OpenAI
Familyo3
Statusactive
Input modalitiestext, image
Output modalitiestext
Knowledge cutoff2024-05
Release date—
Deprecation date—
Typereasoning
Reasoning tokensYes
Max input—
Sourceofficial
Last updated2026-03-21
Tools
Function Callingfunction_calling
Call external functions and APIs
File Searchfile_search
Search across uploaded files
Image Generationimage_generation
Generate images inline
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
Pricing
Text tokensPer 1M tokens
InputCached inputOutput
Standard$2$0.5$8
Batch$1—$4
Flex$1$0.25$4
o3 family
ModelContextMax outInputOutput
o3-miniRVTS
200K100K$1.1$4.4
o3RVTS
200K100K$2$8
o3-deep-researchRVS
200K100K$10$40
o3-proRVT
200K100K$20$80
API
GET/v1/models/openai/o3