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computer-use-tool changedagents-and-tools/tool-use/computer-use-tool

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3434 Microsoft Foundry: stable
3535 details:
3636 - Claude 5.5 and later models support computer use through the `computer_toolset_20260801` toolset. They return a 400 error for any computer use tool version they don't accept, such as `computer_20251124` on the Claude API. To move a `computer_20251124` integration to the toolset, see [Migrate from `computer_20251124`](https://platform.claude.com/docs/en/agents-and-tools/tool-use/computer-use-tool#migrate-from-computer-20251124). To move from `computer_20250124`, see [Move computer use to the toolset](https://platform.claude.com/docs/en/models/haiku-5-5/migration-guide#computer-use-toolset) in the Claude Haiku 5.5 migration guide.
37 - Claude Opus 4.7, Claude Opus 4.6, Claude Sonnet 4.6, and Claude Opus 4.5 support computer use only through the earlier `computer_20251124` tool version, which requires a beta header; see [Earlier tool versions](https://platform.claude.com/docs/en/agents-and-tools/tool-use/computer-use-tool#earlier-tool-versions).
37 - Claude Opus 4.7, Claude Opus 4.6, Claude Sonnet 4.6, and Claude Opus 4.5 support computer use only through the `computer_20251124` tool version, which requires a beta header; see [Earlier tool versions](https://platform.claude.com/docs/en/agents-and-tools/tool-use/computer-use-tool#earlier-tool-versions).
3838---
3939 
4040<Note>
from line 79
7979 curl https://api.anthropic.com/v1/messages \
8080 -H "content-type: application/json" \
8181 -H "x-api-key: $ANTHROPIC_API_KEY" \
82 -H "anthropic-version: 2023-06-01" \
82 -H "anthropic-version: 2026-10-21" \
8383 -d '{
8484 "model": "claude-opus-5-5",
8585 "max_tokens": 1024,
from line 879
879879To combine computer use with thinking, see [Thinking](https://platform.claude.com/docs/en/build-with-claude/thinking).
880880 
881881<Tip>
882 For the earlier `computer_20251124` tool, internal benchmarking on the models that use it suggests these `effort` settings:
882 For the `computer_20251124` tool, internal benchmarking on the models that use it suggests these `effort` settings:
883883 
884884 * **Claude Opus 4.7:** use `high` as the default; use `low` for high-throughput or cost-sensitive workloads.
885885 * **Claude Sonnet 4.6 and Claude Opus 4.6:** use `medium` as the default (best accuracy-to-cost ratio). Avoid `max`, which adds token cost without improving accuracy on UI tasks. On these models, `low` uses *fewer* output tokens than disabling thinking entirely (fewer mistakes mean fewer retries), making it a strong option for cost-sensitive loops.
from line 1842
18421842| Accuracy is consistently poor | Resolution too low | Try 1280x720 as a baseline |
18431843 
18441844<Tip>
1845 **Model choice affects click precision.** Among the models that use the earlier `computer_20251124` tool, Claude Sonnet 4.6 is more mechanically precise at clicking than Claude Opus 4.6 and is more robust when screenshots require heavy downscaling. Claude Opus 4.7 narrows that gap: its click precision is roughly comparable to Sonnet 4.6, and its higher resolution limit means less downscaling is needed.
1845 **Model choice affects click precision.** Among the models that use the `computer_20251124` tool, Claude Sonnet 4.6 is more mechanically precise at clicking than Claude Opus 4.6 and is more robust when screenshots require heavy downscaling. Claude Opus 4.7 narrows that gap: its click precision is roughly comparable to Sonnet 4.6, and its higher resolution limit means less downscaling is needed.
18461846</Tip>
18471847 
18481848### Follow implementation best practices
from line 2180
21802180| Tool version | Beta header | Use with | Parameters |
21812181| ------------------- | ------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------- |
21822182| `computer_20251124` | `computer-use-2025-11-24` | Claude Fable 5.1, Claude Mythos 5.1, Claude Fable 5, Claude Mythos 5, Claude Opus 5, Claude Sonnet 5, Claude Opus 4.8, Claude Opus 4.7, Claude Opus 4.6, Claude Sonnet 4.6, and Claude Opus 4.5 | [API reference](https://platform.claude.com/docs/en/api/beta/messages/create) |
2183| `computer_20250124` | `computer-use-2025-01-24` | Claude Sonnet 4.5 ([deprecated](https://platform.claude.com/docs/en/about-claude/model-deprecations)), Claude Haiku 4.5, Claude Opus 4.1 ([retired, except on Bedrock and Claude Models on Google Cloud (Google managed)](https://platform.claude.com/docs/en/about-claude/model-deprecations)), Claude Sonnet 4 ([retired, except on Bedrock and Claude Models on Google Cloud (Google managed)](https://platform.claude.com/docs/en/about-claude/model-deprecations)), and Claude Opus 4 ([retired, except on Claude Models on Google Cloud (Google managed)](https://platform.claude.com/docs/en/about-claude/model-deprecations)) | [API reference](https://platform.claude.com/docs/en/api/beta/messages/create) |
2183| `computer_20250124` | `computer-use-2025-01-24` | Claude Sonnet 4.5 ([deprecated](https://platform.claude.com/docs/en/about-claude/model-deprecations)), Claude Haiku 4.5, Claude Opus 4.1 ([retired, except on Claude Models on Google Cloud (Google managed) and Bedrock](https://platform.claude.com/docs/en/about-claude/model-deprecations)), Claude Sonnet 4 ([retired, except on Claude Models on Google Cloud (Google managed) and Bedrock](https://platform.claude.com/docs/en/about-claude/model-deprecations)), and Claude Opus 4 ([retired, except on Claude Models on Google Cloud (Google managed)](https://platform.claude.com/docs/en/about-claude/model-deprecations)) | [API reference](https://platform.claude.com/docs/en/api/beta/messages/create) |
21842184 
21852185On Amazon Bedrock, Claude Opus 5.5, Claude Sonnet 5.5, and Claude Haiku 5.5 also accept the `computer_20251124` tool with the `computer-use-2025-11-24` beta header.
21862186 
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