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OpenAI: o3 Deep Research

openai/o3-deep-research

Created Oct 10, 2025200,000 context
$10/M input tokens$40/M output tokens$10/K web search

o3-deep-research is OpenAI's advanced model for deep research, designed to tackle complex, multi-step research tasks.

Note: This model always uses the 'web_search' tool which adds additional cost.

Providers for o3 Deep Research

OpenRouter routes requests to the best providers that are able to handle your prompt size and parameters, with fallbacks to maximize uptime.

Performance for o3 Deep Research

Compare different providers across OpenRouter

Apps using o3 Deep Research

Top public apps this month

Recent activity on o3 Deep Research

Total usage per day on OpenRouter

Prompt
478K
Reasoning
181K
Completion
25K

Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.

Uptime stats for o3 Deep Research

Uptime stats for o3 Deep Research across all providers

Sample code and API for o3 Deep Research

OpenRouter normalizes requests and responses across providers for you.

OpenRouter provides an OpenAI-compatible completion API to 400+ models & providers that you can call directly, or using the OpenAI SDK. Additionally, some third-party SDKs are available.

In the examples below, the OpenRouter-specific headers are optional. Setting them allows your app to appear on the OpenRouter leaderboards.

Using third-party SDKs

For information about using third-party SDKs and frameworks with OpenRouter, please see our frameworks documentation.

See the Request docs for all possible fields, and Parameters for explanations of specific sampling parameters.