o3 Pro

OpenAI chatreasoningtool_usevision Long

API ID: openai/o3-pro-2025-06-10

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Input Price
$20.00
/1M tokens
Output Price
$80.00
/1M tokens

About o3 Pro

The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o3-pro model uses more compute to think harder and provide consistently better answers. Note that BYOK is required for this model. Set up here: https://openrouter.ai/settings/integrations

💰
Price Ranking
#1231 lowest price among 1240 Chat models

Model Specifications

Context Length
200k
Max Output
100k
Release Date
2025-06-10
Capabilities
chat reasoning tool_use vision
Input Modalities
textfileimage
Output Modalities
text

Best For

  • Complex reasoning, math problems, multi-step logic
  • Image analysis, document understanding, visual Q&A
  • Conversations, content writing, general assistance

Consider Alternatives For

  • Simple Q&A (cheaper models available)

💰 Real-World Cost Examples

Estimated monthly costs for common use cases

Personal AI Assistant
$33.00
/month
50 conversations/day, ~500 tokens each
Customer Service Bot
$1020.00
/month
1000 tickets/day, ~800 tokens each
Data Analysis Pipeline
$1410.00
/month
500 analyses/day, ~2k tokens each
Calculate Your Custom Usage

OpenAI Model Lineup

Compare all models from OpenAI to find the best fit

Model Input Output Context Capabilities
o3 Pro Current Free Free 200k chat reasoning tool_use vision
GPT-3.5 Turbo 16k (older v1106) Free Free 16k chat
GPT-3.5 Turbo 16k (older v1106) Free Free 16k chat
GPT-4 32k Free Free 33k chat
GPT-4 32k Free Free 33k chat
GPT-4 32k (older v0314) Free Free 33k chat
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🚀 Quick Start

Get started with o3 Pro API

OpenAI Python SDK 
from openai import OpenAI
client = OpenAI()

response = client.chat.completions.create(
    model="openai/o3-pro-2025-06-10",
    messages=[
        {"role": "user", "content": "Hello!"}
    ]
)
print(response.choices[0].message.content)

Resources

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