o3-mini-2025-01-31

reasoningdeprecatedproprietary

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

Intelligence
Reasoning
Speed
Context
200K
Max output
100K
Input price
$1.1/1M tokens
Output price
$4.4/1M tokens
Alias ofo3-mini

Capabilities

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

Details

Provider OpenAI
Creator openai
Familyo3
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-sol
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Endpoints

Chat CompletionsPOST
Generate chat responses with messageshttps://api.openai.com/v1/chat/completions
ResponsesPOST
Stateful multi-turn conversationshttps://api.openai.com/v1/responses
AssistantsPOST
Persistent assistants with tools and fileshttps://api.openai.com/v1/assistants
BatchPOST
Async batch processing at lower costhttps://api.openai.com/v1/batches

Pricing

Text tokensPer 1M tokens
InputCached inputOutput
Standard$1.1$0.55$4.4

Family Comparison: o3

ModelContextMax outPricing
o3-mini200K100K$1.1$4.4
o3200K100K$2$8
o3-deep-research200K100K$10$40
o3-pro200K100K$20$80

API

GET/v1/models/openai/o3-mini-2025-01-31

o3-mini-2025-01-31

deprecated

Status: Shut down

alias → o3-mini
Changes · 13 entries
o3-mini-2025-01-31updateca7a400Nov 2, 2026, 03:02 AM
descriptiono3-mini is our newest small reasoning model, providing hi...→Status: Shut down
statusactive→deprecated
modalitiesinput["text"]→["text","image"]
pricingtiers[{"label":"Text tokens","unit":"Per 1M tokens","columns":...→[{"label":"Text tokens","unit":"Per 1M tokens","columns":...
deprecation_date2026-04-22
retirement_date2026-10-23
successorgpt-5.6-sol
o3-mini-2025-01-31updateb2f45bfOct 29, 2026, 03:29 AM
descriptiono3-mini is our newest small reasoning model, providing hi...→Status: Shut down
o3-mini-2025-01-31update4e8b6afOct 21, 2026, 06:35 AM
pricingtiers[{"label":"Text tokens","unit":"Per 1M tokens","columns":...→[{"label":"Text tokens","unit":"Per 1M tokens","columns":...
o3-mini-2025-01-31update118451aSep 24, 2026, 07:08 AM
statusactive→deprecated
pricingtiers[{"label":"Text tokens","unit":"Per 1M tokens","columns":...→[{"label":"Text tokens","unit":"Per 1M tokens","columns":...
deprecation_date2026-04-22
retirement_date2026-10-23
successorgpt-5.6-sol
o3-mini-2025-01-31updatee8ec634Mar 24, 2026, 07:27 PM
knowledge_cutoff2023-09→2023-10
o3-mini-2025-01-31updatefa2bbbbMar 24, 2026, 05:22 AM
capabilitiesjson modeno→yes
o3-mini-2025-01-31updatef43e286Mar 24, 2026, 04:45 AM
capabilitiesjson modeyes→novisionnofine tuningnobatchyes
o3-mini-2025-01-31update1cd659eMar 24, 2026, 04:19 AM
knowledge_cutoff2023-10→2023-09
capabilitiesjson modeyes
page_urlhttps://platform.openai.com/docs/models/o3-mini→https://developers.openai.com/api/docs/models/o3-mini?sna...
o3-mini-2025-01-31updateb301ebeMar 23, 2026, 11:47 PM
knowledge_cutoff2023-09→2023-10
o3-mini-2025-01-31update2b100acMar 23, 2026, 05:30 AM
licenseproprietary
release_date2025-01-31
page_urlhttps://platform.openai.com/docs/models/o3-mini
open_weightno
tools["function_calling"]
o3-mini-2025-01-31updateb50649fMar 21, 2026, 11:58 PM
pricingtiers[{"label":"Text tokens","unit":"Per 1M tokens","columns":...
descriptionOpenAI o3-mini is a cost-efficient language model optimiz...→o3-mini is our newest small reasoning model, providing hi...
capabilitiesstreamingyes
knowledge_cutoff2023-09
model_typereasoning
reasoning_tokensyes
reasoning4
taglineo3-mini is our newest small reasoning model, providing hi...
endpoints["chat_completions","responses","assistants","batch"]
o3-mini-2025-01-31updatec9a70c5Mar 21, 2026, 08:12 AM
pricinginput$1.1output$4.4cached input$0.55batch input$0.55batch output$2.2
descriptionOpenAI o3-mini is a cost-efficient language model optimiz...
capabilitiestool callyesstructured outputyesreasoningyes
o3-mini-2025-01-31create7f5c66fMar 21, 2026, 05:16 AM