OpenAI API exposes o3 Mini through model ID o3-mini. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.
Last refreshed 2026-06-04. Next refresh: weekly.
Quick Start
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Code Examples
Install
pip install openaiAPI key
OPENAI_API_KEYModel ID
o3-miniUse the model slug directly, e.g. "gpt-4o" or "gpt-4.1-mini".
import os
from openai import OpenAI
client = OpenAI() # reads OPENAI_API_KEY from env
response = client.chat.completions.create(
model="o3-mini",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Pricing on OpenAI API
Capabilities
ReasoningJSON / Tool useStructured OutputsCode ExecutionPrompt Caching
About o3 Mini
OpenAI o3-mini - cost-optimized reasoning model. Compact variant of reasoning model family.
Model Specs
Released2025-01-31
Context200k
ArchitectureDecoder Only
Knowledge cutoff2025-04