OpenAI: o3 Pro

reasoningdeprecatedproprietary

The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning.

Intelligence
Reasoning
Speed
Context
200K
Max output
100K
Input price
$20/1M tokens
Output price
$80/1M tokens

Capabilities

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

Details

Model IDopenai/o3-pro
Provider OpenRouter
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
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$20
Output
$80
Cache write
—
Cache read
—
Batch in
—
Batch out
—

Family Comparison: o3

ModelContextMax outPricing
OpenAI: o3 Mini (batch)200K100K$0.55$2.2
OpenAI: o3 Mini High (batch)200K100K$0.55$2.2
OpenAI: o3 Mini High200K100K$1.1$4.4
OpenAI: o3 Mini200K100K$1.1$4.4
OpenAI: o3200K100K$2$8
OpenAI: o3 Deep Research200K100K$10$40
OpenAI: o3 Pro (batch)200K100K$10$40
OpenAI: o3 Pro200K100K$20$80

API

GET/v1/models/openrouter/openai/o3-pro

OpenAI: o3 Pro

deprecated
openai/o3-pro

The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning.

Changes · 3 entries
openai/o3-proupdate1cd659eMar 24, 2026, 04:19 AM
capabilitiesjson modeyes
openai/o3-proupdate2b100acMar 23, 2026, 05:30 AM
model_typereasoning
release_date2025-06-10
taglineThe o-series of models are trained with reinforcement lea...
tools["function_calling"]
openai/o3-procreate7f5c66fMar 21, 2026, 05:16 AM