Built-in tools›Web

Group

Web

Turned on by

The web-access switch on the Advanced tools page of Conversation settings.

Approval

Reviewed: writes and open-ended actions ask for approval unless the security level or an earlier “Always allow” covers them.

Profile key

tool.web_fetch.description

Fetches up to 20 web pages by URL and brings their text into the conversation.

The model has it whenever the conversation's Fetch provider (Conversation settings → Advanced tools) is not Off; with Native, only on Anthropic Messages and AWS Bedrock models. Setup is on Web search and fetch.

When it asks you

One card lists every URL in the call.

Limits

• fetch, the provider that runs on your computer, takes at most 4 MiB and 30 seconds per page. It runs no JavaScript, so a page that builds itself in the browser can come back empty.
• All pages in a call share the Result compression budget, 2,000 tokens by default; 0 keeps pages whole. Native is not cut.

Good to know

• fetch refuses private and local addresses, except a local address the model names directly at Full access, such as your dev server. Redirects into your local network and links taken from search results are always refused.
• If the chosen provider is not set up or stops working, the model still has web_fetch, and fetches fail with an error the model can pass on to you.

Parameters