O3 Pro

o3-pro · OpenAI

o3-pro This model only supports Requests API interface requests.The model's thinking time is relatively long, so the response will be slow.

API Pricing

Input$20 / 1M tokens
Output$80 / 1M tokens

Specifications

Context200K tokens
Modalitiestext, image
Featuresthinking, tool calling, function calling, structured outputs

Frequently asked questions

What is O3 Pro?

o3-pro This model only supports Requests API interface requests.The model's thinking time is relatively long, so the response will be slow.

What is the context length of O3 Pro?

O3 Pro has a 200,000 token context window.

How much does O3 Pro cost?

On AIHubMix, O3 Pro costs $20 per million input tokens and $80 per million output tokens.

What modalities does O3 Pro support?

O3 Pro accepts text and image input.

What capabilities does O3 Pro support?

O3 Pro supports thinking, tool calling, function calling and structured outputs. Per-protocol parameter support is listed in the capability table on this page.

How do I call O3 Pro via API?

O3 Pro is available through the AIHubMix unified API. The API is OpenAI-compatible: point your OpenAI SDK at https://aihubmix.com/v1, use your AIHubMix API key, and set the model name to o3-pro — no other code changes needed.

Who created O3 Pro?

O3 Pro is developed by OpenAI. AIHubMix aggregates it alongside models from other providers behind one API and one bill.

More models from OpenAI

See all OpenAI models →

GPT 5.6 Sol Disc

by OpenAI

GPT-5.6 Sol (limited-time 50% off) is OpenAI’s frontier reasoning model for complex…

$5 $2.5/1M in · $30 $15/1M out
50% off · 00:00–23:59 UTC
1,050,000 tokens context

GPT 5.6 Luna

by OpenAI

GPT-5.6 Luna is designed for cost-sensitive, high-volume workloads. It roughly…

$0.2/1M in · $1.2/1M out
1,050,000 tokens context

GPT 5.6 Sol

by OpenAI

GPT‑5.6 Sol sets a new standard for both intelligence and efficiency, achieving…

$5/1M in · $30/1M out
1,050,000 tokens context

GPT 5.6 Terra

by OpenAI

GPT-5.6 Terra is designed for workloads that balance intelligence and cost. It roughly…

$2/1M in · $12/1M out
1,050,000 tokens context

GPT 4o Transcribe Diarize

by OpenAI

GPT-4o Transcribe Diarize is an automatic speech recognition (ASR) model with built-in…

$2.5/1M in · $10/1M out
16,000 tokens context

GPT Audio 1.5

by OpenAI

The gpt-audio model is OpenAI's first officially released (generally available) audio…

$2.5/1M in · $10/1M out
128,000 tokens context

Use O3 Pro via the AIHubMix unified API — one interface for every major LLM.