Follow Discord
Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial
One change · api

errors changedapi/errors

Nearest release: v2.1.309, published an hour before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Recorded here
Lines+1added
Lines−1removed
From line 530 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits26to this page, all time

The whole hunk

from line 530, old and new numbered
/
lines
from line 530
530530 
531531### Computer use tool version not supported
532532 
533On the Claude API and Google Cloud, Claude Opus 5.5, Claude Sonnet 5.5, and Claude Haiku 5.5 support [computer use](https://platform.claude.com/docs/en/agents-and-tools/tool-use/computer-use-tool) only as the `computer_toolset_20260801` toolset. On those platforms, sending any of these models a `tools` entry of the earlier `computer_20251124` or `computer_20250124` type, with that tool's beta header, returns a 400 `invalid_request_error`. The message names the rejected type, then lists the tool types the model does accept after `Did you mean one of`. For Claude Opus 5.5, it begins:
533On the Claude API and Claude Models on Google Cloud (Google managed), Claude Opus 5.5, Claude Sonnet 5.5, and Claude Haiku 5.5 support [computer use](https://platform.claude.com/docs/en/agents-and-tools/tool-use/computer-use-tool) only as the `computer_toolset_20260801` toolset. On those platforms, sending any of these models a `tools` entry of the earlier `computer_20251124` or `computer_20250124` type, with that tool's beta header, returns a 400 `invalid_request_error`. The message names the rejected type, then lists the tool types the model does accept after `Did you mean one of`. For Claude Opus 5.5, it begins:
534534 
535535```text wrap
536536'claude-opus-5-5' does not support tool types: computer_20251124.
Feedback