OpenAI: o3 Pro

Public pricingIntelligence 81/100Large memoryVisionDeep thinkingTool use

OpenAI: o3 Pro is a multimodal model for multimodal reasoning and analysis. It combines multimodal input handling and deep reasoning and planning with a 200K tokens context window and a premium profile. Use it for multimodal reasoning and analysis when quality, speed, and cost matters. It is a practical choice for teams that need reliable output, flexible deployment, and room to scale.

Input

$20.00/1M

Output

$80.00/1M

Cached

$2.00/1M

Batch

$10.00/1M

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What would o3 Pro cost you?

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Technical specifications

o3 Pro at a glance.

Memory

200,000

tokens

Max reply

100,000

tokens

Memory tier

Large

an entire book or large codebase

Tokenizer

tiktoken-o200k

Released

Jun 2025

Training cutoff

Jun 2024

Availability

Public pricing

Status

active

Benchmarks

Quality benchmarks

Independent evaluations from public leaderboards. Higher is better.

  • gpqa_diamond

    84.5

What it can do

Capabilities & limits.

  • Understands images
  • Deep step-by-step thinking
  • Uses tools / calls functions
  • Strict JSON output
  • Streams replies
  • Fine-tunable on your data

When to pick o3 Pro

  • Multi-step reasoning, research agents, or hard math.
  • Screenshot analysis, image understanding, or document OCR.
  • Agentic workflows that call tools or APIs.
  • Long documents, full codebases, or extensive chat histories.

When to look elsewhere

  • Very latency-sensitive, real-time apps where every millisecond counts.

Alternatives

Similar models to compare.

FAQ

o3 Pro — the questions we see most.

Pricing, capabilities, alternatives — generated from the same data that powers the calculator above.

Get instant answers from our AI agent

At a typical workload of 50,000 conversations a month with 1,500-token prompts and 800-token replies, o3 Pro costs roughly $4,700 per month. Input is $20.00 /1M tokens and output is $80.00 /1M tokens.
o3 Pro has a 200,000-token context window (large memory — an entire book or large codebase). That means you can fit about 37,500 words of input and history in a single call.
Beyond text generation, o3 Pro supports understanding images, deep step-by-step reasoning, calling functions / tools, strict JSON output. It streams replies by default.
o3 Pro was released in June 2025, with training data cut off around June 2024.
Models in a similar class include GPT-5.2 Pro, GPT-5 Pro, o1. The "Similar models" section below this FAQ links into each.

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