OpenAI: o3 Deep Research

openai/o3-deep-research

Created Oct 10, 2025200,000 context

$10/M input tokens$40/M output tokens$7.65/K input imgs$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.

OpenAI: o3 Deep Research

openai/o3-deep-research

Created Oct 10, 2025200,000 context

$10/M input tokens$40/M output tokens$7.65/K input imgs$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.

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.