computer-use-tool changedagents-and-tools/tool-use/computer-use-tool
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434434Claude then sees which actions succeeded, which one failed, and which were skipped, and replans on its next turn. A request that leaves any `tool_use` block in the batch unanswered is rejected with an `invalid_request_error`, so an agent loop that reads only the first block fails on its next call. If your application asks a human to confirm consequential actions, make that check before each block runs, because a batch can complete a multistep action within one turn.
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436Claude typically finishes a batch with `screenshot` so it can observe the outcome before deciding what to do next. When a batch doesn't end with one, your application can attach a screenshot as an extra `image` block on the last result in the batch so that Claude always sees the current state of the screen, which saves a round trip compared with waiting for Claude to ask. You can also prompt Claude to end every batch with a screenshot (see [Optimize model performance with prompting](https://platform.claude.com/docs/en/agents-and-tools/tool-use/computer-use-tool#optimize-model-performance-with-prompting)).
436Claude typically finishes a batch with `screenshot` so it can observe the outcome before determining what to do next. When a batch doesn't end with one, your application can attach a screenshot as an extra `image` block on the last result in the batch so that Claude always sees the current state of the screen, which saves a round trip compared with waiting for Claude to ask. You can also prompt Claude to end every batch with a screenshot (see [Optimize model performance with prompting](https://platform.claude.com/docs/en/agents-and-tools/tool-use/computer-use-tool#optimize-model-performance-with-prompting)).
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438438### The computing environment
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21772177Two earlier versions of the computer use tool remain available in beta for existing integrations, for models that don't support the toolset, and on platforms where the toolset isn't currently available. Each requires its [beta header](https://platform.claude.com/docs/en/api/beta-headers) on every request, and their parameters are documented in the [beta Messages API reference](https://platform.claude.com/docs/en/api/beta/messages/create). With the SDK, pass the header through `betas` (python, typescript, php, ruby; csharp, go: `Betas`; java: `.addBeta()`) and use the beta namespace; only the computer use tool needs the header, not the bash or text editor tools in the same request.
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2179| Tool version | Beta header | Use with | Parameters |
2180| ------------------- | ------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------- |
2181| `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; on Amazon Bedrock, also Claude Opus 5.5 and Claude Sonnet 5.5 | [API reference](https://platform.claude.com/docs/en/api/beta/messages/create) |
2182| `computer_20250124` | `computer-use-2025-01-24` | Claude Sonnet 4.5, Claude Haiku 4.5, Claude Opus 4.1 ([retired, except on Bedrock and Google Cloud](https://platform.claude.com/docs/en/about-claude/model-deprecations)), Claude Sonnet 4 ([retired, except on Bedrock and Google Cloud](https://platform.claude.com/docs/en/about-claude/model-deprecations)), and Claude Opus 4 ([retired, except on Google Cloud](https://platform.claude.com/docs/en/about-claude/model-deprecations)) | [API reference](https://platform.claude.com/docs/en/api/beta/messages/create) |
2179| Tool version | Beta header | Use with | Parameters |
2180| ------------------- | ------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------- |
2181| `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; on Amazon Bedrock, also Claude Opus 5.5 and Claude Sonnet 5.5 | [API reference](https://platform.claude.com/docs/en/api/beta/messages/create) |
2182| `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 Google Cloud](https://platform.claude.com/docs/en/about-claude/model-deprecations)), Claude Sonnet 4 ([retired, except on Bedrock and Google Cloud](https://platform.claude.com/docs/en/about-claude/model-deprecations)), and Claude Opus 4 ([retired, except on Google Cloud](https://platform.claude.com/docs/en/about-claude/model-deprecations)) | [API reference](https://platform.claude.com/docs/en/api/beta/messages/create) |
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