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o3-pro

High-compute variant of o3, released June 2025, trading speed and cost for maximum reliability on difficult problems.

Context
200K tokens
Max output
100K
Cutoff
Released

Hosted API price

List price via OpenAI · per 1M tokens

USD
Input
$20.00 /1M
Output
$80.00 /1M
Hosted by
OpenAI Azure 2 providers

Hosted API pricing

How we price

Order

Providers are listed cheapest input rate first, then by output rate, a tie going to the creator's own listing. A provider that lists the model without a published rate sits at the end.

Prices

Base-tier, on-demand rates in USD per 1M tokens, converted at ECB reference rates where a provider publishes in another currency. Cached-input and batch rates show only where a provider publishes them. "Cheapest" marks the one provider with the lowest input and output pair; a tie wears no badge.

Cost

Input rate times the input tokens plus output rate times the output tokens, at the monthly volume set above the table. Cached-input, batch, long-context and reasoning-token billing are not modelled.

Transparency and funding

  • Affiliates: Affiliate links are marked. We may earn a commission if you click them, but commissions never affect the order.

Every provider serving o3-pro, cheapest input first. Set your monthly volume to see what each would bill.

Every provider serving o3-pro, with its price per 1M input and output tokens and what the volume above would cost
Provider Input /1M Output /1M Cost at 10M in + 2M out Link
OpenAI logo OpenAI Creator $20.00 $80.00 $360.00 Visit website
Microsoft Azure logo Azure $20.00 $80.00 $360.00 Visit website

Heads up: Base-tier, on-demand rates per 1M tokens; cached, batch and long-context tiers excluded. A provider may serve a shorter context or a quantized build than the creator's release. Verify before provisioning. More on how we price.

Similarly priced models

The models nearest o3-pro by blended rate, each at its own cheapest provider.

Models priced nearest o3-pro per 1M tokens, each at its cheapest provider
Model Blended /1M Input /1M Output /1M Context Cutoff vs o3-pro
OpenAI GPT-4 Turbo OpenAI $13.3333 $10.00 $30.00 128K Dec 2023 −56%
Anthropic Claude Fable 5 Anthropic $16.6667 $10.00 $50.00 1M Jan 2026 −44%
Anthropic Claude Fable 5.1 Anthropic $16.6667 $10.00 $50.00 1M Jun 2026 −44%
OpenAI GPT-6 Astra OpenAI $16.6667 $10.00 $50.00 1M Apr 2026 −44%
OpenAI o1 OpenAI $22.50 $15.00 $60.00 200K Oct 2023 −25%
OpenAI o3-pro This model OpenAI $30.00 $20.00 $80.00 200K Jun 2024
OpenAI GPT-5 Pro OpenAI $32.50 $15.00 $120.00 400K Sep 2024 +8%
OpenAI GPT-4 OpenAI $35.00 $30.00 $60.00 8K Dec 2023 +17%
OpenAI GPT-5.2 Pro OpenAI $45.50 $21.00 $168.00 400K Aug 2025 +52%
OpenAI GPT-5.4 Pro OpenAI $55.00 $30.00 $180.00 1M Aug 2025 +83%
OpenAI GPT-5.5 Pro OpenAI $55.00 $30.00 $180.00 1M Dec 2025 +83%

USD per 1M tokens at each model's cheapest listed provider. Blended is the cost of 10M input plus 2M output tokens, spread over the 12M.

Capabilities

What o3-pro accepts and can do, as published by OpenAI.

  • Text Accepts and generates natural-language text.
  • Image Accepts images as input alongside text.
  • Reasoning Thinks before it answers, always on or as a switchable mode.
  • Function calling Connect to external tools, APIs, and systems.
  • Structured output Return responses in structured formats like JSON.
  • Web search Search the web for up-to-date information.
  • MCP Connect to services via Model Context Protocol.
  • Image generation Generate and edit images from text prompts.

Common questions

What is o3-pro good for?

Difficult problems where reliability per request outweighs cost: OpenAI says the high-compute variant of o3 spends more compute for consistent answers.

When is o3-pro not a good fit?

High-volume work: it sits near the top of OpenAI's price range. No code execution or file input, and OpenAI plans to shut it down in December 2026.

What is the cheapest way to run o3-pro?

The cheapest hosted rate is $20.00 / $80.00 per 1M tokens via OpenAI.

How does o3-pro compare with o1-pro?

OpenAI says o3-pro is to o3 what o1-pro was to o1: it spends more compute to think longer and give more reliable answers, can search the web, run Python and analyze files as it reasons, and beat o1-pro in OpenAI's own evaluations. Same 200K-token context and text and image input. o3-pro lists at 87% less per 1M input tokens and 87% less per 1M output tokens than o1-pro. It came out 3 months later and has a newer knowledge cutoff (June 2024 against October 2023).

Can I self-host o3-pro?

No. OpenAI does not publish the weights; o3-pro is available only through hosted APIs.

More from OpenAI

  • GPT-5 Pro 400K context · cutoff Sep 2024
    From $15.00 / $120.00 /1M in / out at the cheapest provider
  • GPT-4 8K context · cutoff Dec 2023
    From $30.00 / $60.00 /1M in / out at the cheapest provider
  • o1 200K context · cutoff Oct 2023
    From $15.00 / $60.00 /1M in / out at the cheapest provider
  • GPT-5.2 Pro 400K context · cutoff Aug 2025
    From $21.00 / $168.00 /1M in / out at the cheapest provider
  • GPT-6 Astra 1M context · cutoff Apr 2026
    From $10.00 / $50.00 /1M in / out at the cheapest provider
  • GPT-5.5 Pro 1M context · cutoff Dec 2025
    From $30.00 / $180.00 /1M in / out at the cheapest provider
  • GPT-5.4 Pro 1M context · cutoff Aug 2025
    From $30.00 / $180.00 /1M in / out at the cheapest provider
  • o3-deep-research 200K context · cutoff Jun 2024
    From $10.00 / $40.00 /1M in / out at the cheapest provider