OpenAI: o3 Deep Research

Public pricingIntelligence 79/100Large memoryVisionDeep thinkingTool use

OpenAI: o3 Deep Research is a multimodal model for agent workflows and tool use. It combines multimodal input handling and reliable tool use and agent behavior with a 200K tokens context window and a premium profile. Use it for agent workflows, tool use, and orchestration when quality, speed, and cost matters.

Input

$10.00/1M

Output

$40.00/1M

Cached

$2.50/1M

Batch

$5.00/1M

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What would o3 Deep Research cost you?

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Technical specifications

o3 Deep Research 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

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 Deep Research

  • 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 Deep Research — 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 Deep Research costs roughly $2,350 per month. Input is $10.00 /1M tokens and output is $40.00 /1M tokens.
o3 Deep Research 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 Deep Research supports understanding images, deep step-by-step reasoning, calling functions / tools, strict JSON output. It streams replies by default.
o3 Deep Research was released in June 2025, with training data cut off around June 2024.
Models in a similar class include GPT-5 Image, GPT-5 Pro, o1. The "Similar models" section below this FAQ links into each.

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