o3 Deep Research

OpenAI

o3 Deep Research is OpenAI's advanced model for deep research, designed to tackle complex, multi-step research tasks. This model always uses web search which adds additional cost.

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Capabilities

Thinking

Tool Use

Image Input

PDF Input

Technical Specifications

Context Window

200,000 tokens

Max Output

100,000 tokens

Pricing

Token Costs (per 1M tokens)

Cache Miss Input

$10

Non-Reasoning Output

$40

Cache Read Input

$2.50

Tool Costs (per 1K calls)

Web Search

$15

Code Execution

$0.19

Legacy

Made legacy on

Reason

Superseded by o4 Mini Deep Research with better cost efficiency

Recommended Replacement

GPT-5.4 Mini