o4-mini-2025-04-16

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
Alias ofo4-mini

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

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-2025-04-16

o4-mini-2025-04-16

deprecated

Status: Shut down

alias → o4-mini
Changes · 13 entries
o4-mini-2025-04-16updateca7a400Nov 2, 2026, 03:02 AM
descriptiono4-mini is our latest small o-series model. It's optimize...→Status: Shut down
statusactive→deprecated
pricingtiers[{"label":"Fine-tuning","unit":"","columns":["Training","...→[{"label":"Fine-tuning","unit":"","columns":["Training","...
deprecation_date2026-04-22
retirement_date2026-10-23
successorgpt-5.6-terra
o4-mini-2025-04-16updateb2f45bfOct 29, 2026, 03:29 AM
descriptiono4-mini is our latest small o-series model. It's optimize...→Status: Shut down
pricingtiers[{"label":"Fine-tuning","unit":"","columns":["Training","...→[{"label":"Fine-tuning","unit":"","columns":["Training","...
o4-mini-2025-04-16update4e8b6afOct 21, 2026, 06:35 AM
pricingtiers[{"label":"Fine-tuning","unit":"","columns":["Training","...→[{"label":"Fine-tuning","unit":"","columns":["Training","...
o4-mini-2025-04-16update118451aSep 24, 2026, 07:08 AM
statusactive→deprecated
pricingtiers[{"label":"Fine-tuning","unit":"","columns":["Training","...→[{"label":"Fine-tuning","unit":"","columns":["Training","...
deprecation_date2026-04-22
retirement_date2026-10-23
successorgpt-5.6-terra
o4-mini-2025-04-16updatee8ec634Mar 24, 2026, 07:27 PM
knowledge_cutoff2024-05→2024-06
o4-mini-2025-04-16updatefa2bbbbMar 24, 2026, 05:22 AM
capabilitiesjson modeno→yes
o4-mini-2025-04-16updatef43e286Mar 24, 2026, 04:45 AM
capabilitiesjson modeyes→nobatchyes
o4-mini-2025-04-16update1cd659eMar 24, 2026, 04:19 AM
knowledge_cutoff2024-06→2024-05
capabilitiesjson modeyes
page_urlhttps://platform.openai.com/docs/models/o4-mini→https://developers.openai.com/api/docs/models/o4-mini?sna...
o4-mini-2025-04-16updateb301ebeMar 23, 2026, 11:47 PM
knowledge_cutoff2024-05→2024-06
o4-mini-2025-04-16update2b100acMar 23, 2026, 05:30 AM
licenseproprietary
release_date2025-04-16
page_urlhttps://platform.openai.com/docs/models/o4-mini
open_weightno
tools["function_calling"]
o4-mini-2025-04-16updateb50649fMar 21, 2026, 11:58 PM
pricingtiers[{"label":"Fine-tuning","unit":"","columns":["Training","...
descriptionOpenAI o4-mini is a compact reasoning model in the o-seri...→o4-mini is our latest small o-series model. It's optimize...
capabilitiesstreamingyesvisionyesfine tuningyes
knowledge_cutoff2024-05
model_typereasoning
reasoning_tokensyes
reasoning4
taglineo4-mini is our latest small o-series model.
endpoints["chat_completions","responses","batch","fine_tuning"]
o4-mini-2025-04-16updatec9a70c5Mar 21, 2026, 08:12 AM
pricinginput$1.1output$4.4cached input$0.275batch input$0.55batch output$2.2
descriptionOpenAI o4-mini is a compact reasoning model in the o-seri...
capabilitiestool callyesstructured outputyesreasoningyes
o4-mini-2025-04-16create7f5c66fMar 21, 2026, 05:16 AM