o3-2025-04-16

reasoning

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

Intelligence
Reasoning
Speed
Context
200K
Max output
100K
Input price
$2/1M tokens
Output price
$8/1M tokens
Alias ofo3
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
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
Family Comparison: o3
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/o3-2025-04-16

o3-2025-04-16

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

alias → o3
Changes · 3 entries
o3-2025-04-16updateb50649fMar 21, 2026, 11:58 PM
pricingtiers[{"label":"Text tokens","unit":"Per 1M tokens","columns":...
descriptiono3 is a well-rounded and powerful model across domains.→o3 is a well-rounded and powerful model across domains. I...
capabilitiesstreamingyesvisionyes
knowledge_cutoff2024-05
model_typereasoning
reasoning_tokensyes
reasoning5
taglineo3 is a well-rounded and powerful model across domains.
endpoints["chat_completions","responses","batch"]
o3-2025-04-16updatec9a70c5Mar 21, 2026, 08:12 AM
pricinginput$2output$8cached input$0.5batch input$1batch output$4
descriptiono3 is a well-rounded and powerful model across domains.
capabilitiestool callyesstructured outputyesreasoningyes
o3-2025-04-16create7f5c66fMar 21, 2026, 05:16 AM