add claude 4.5 opus #1358

tkattkat · 2025-12-04T18:52:59Z

why

adds support for using claude 4.5 opus with cua

what changed

added opus to model maps

test plan

Summary by cubic

Adds support for Anthropic Claude 4.5 Opus in CUA. Registers anthropic/claude-opus-4-5-20251101 and maps it to the Anthropic provider.

^{Written for commit 2e54c27. Summary will update automatically on new commits.}

changeset-bot · 2025-12-04T18:53:03Z

🦋 Changeset detected

Latest commit: 2e54c27

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@browserbasehq/stagehand	Patch
@browserbasehq/stagehand-evals	Patch

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greptile-apps · 2025-12-04T18:54:40Z

Greptile Overview

Greptile Summary

Adds support for Claude 4.5 Opus (claude-opus-4-5-20251101) to the Computer Use Agent (CUA) system.

Added model mapping in AgentProvider.ts to route Claude 4.5 Opus to the Anthropic provider
Added model to AVAILABLE_CUA_MODELS type definition for TypeScript type safety
Implementation follows the existing pattern for other Anthropic models and will be handled by AnthropicCUAClient

Confidence Score: 5/5

This PR is safe to merge - it adds a new model identifier with no logic changes
This is a minimal, additive change that follows established patterns. The change only adds a model identifier to two mapping structures, with no modifications to business logic or control flow.
No files require special attention

Important Files Changed

File Analysis

Filename	Score	Overview
packages/core/lib/v3/agent/AgentProvider.ts	5/5	Added Claude 4.5 Opus model to provider map, routing it to the Anthropic provider. Pattern consistent with existing models.
packages/core/lib/v3/types/public/agent.ts	5/5	Added Claude 4.5 Opus to the available CUA models list, enabling type safety for users of the agent API.

Sequence Diagram

sequenceDiagram
    participant User
    participant Stagehand
    participant AgentProvider
    participant AnthropicCUAClient

    User->>Stagehand: agent({ model: "anthropic/claude-opus-4-5-20251101" })
    Stagehand->>AgentProvider: getClient("claude-opus-4-5-20251101")
    AgentProvider->>AgentProvider: getAgentProvider() → "anthropic"
    AgentProvider->>AnthropicCUAClient: new AnthropicCUAClient()
    AnthropicCUAClient-->>Stagehand: client instance
    Stagehand-->>User: agent instance

greptile-apps

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cubic-dev-ai

No issues found across 2 files

miguelg719

👍

# why adds support for using claude 4.5 opus with cua # what changed added opus to model maps # test plan  --- ## Summary by cubic Adds support for Anthropic Claude 4.5 Opus in CUA. Registers anthropic/claude-opus-4-5-20251101 and maps it to the Anthropic provider. <sup>Written for commit 2e54c27. Summary will update automatically on new commits.</sup>

@miguelg719

This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated. # Releases ## @browserbasehq/[email protected] ### Patch Changes - [#1388](#1388) [`605ed6b`](605ed6b) Thanks [@miguelg719](https://github.com/miguelg719)! - Fix multiple click event dispatches on CDP and Anthropic CUA handling (double clicks) - [#1400](#1400) [`34e7e5b`](34e7e5b) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - don't write base64 encoded screenshots to disk when caching agent actions - [#1345](#1345) [`943d2d7`](943d2d7) Thanks [@tkattkat](https://github.com/tkattkat)! - Add support for aborting / stopping an agent run & continuing an agent run using messages from prior runs - [#1334](#1334) [`0e95cd2`](0e95cd2) Thanks [@tkattkat](https://github.com/tkattkat)! - Add support for google vertex provider - [#1410](#1410) [`d4237e4`](d4237e4) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - fix: include extract in stagehand.history() - [#1315](#1315) [`86975e7`](86975e7) Thanks [@tkattkat](https://github.com/tkattkat)! - Add streaming support to agent through stream:true in the agent config - [#1304](#1304) [`d5e119b`](d5e119b) Thanks [@miguelg719](https://github.com/miguelg719)! - Add support for Microsoft's Fara-7B - [#1346](#1346) [`4e051b2`](4e051b2) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - fix: don't attach to targets twice - [#1327](#1327) [`6b5a3c9`](6b5a3c9) Thanks [@miguelg719](https://github.com/miguelg719)! - Informed error parsing from api - [#1335](#1335) [`bb85ad9`](bb85ad9) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - add support for page.addInitScript() - [#1331](#1331) [`88d28cc`](88d28cc) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - fix: page.evaluate() now works with scripts injected via context.addInitScript() - [#1316](#1316) [`45bcef0`](45bcef0) Thanks [@tkattkat](https://github.com/tkattkat)! - Add support for callbacks in stagehand agent - [#1374](#1374) [`6aa9d45`](6aa9d45) Thanks [@miguelg719](https://github.com/miguelg719)! - Fix key action mapping in Anthropic CUA - [#1330](#1330) [`d382084`](d382084) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - fix: make act, extract, and observe respect user defined timeout param - [#1336](#1336) [`1df08cc`](1df08cc) Thanks [@tkattkat](https://github.com/tkattkat)! - Patch agent on api - [#1358](#1358) [`2b56600`](2b56600) Thanks [@tkattkat](https://github.com/tkattkat)! - Add support for 4.5 opus in cua agent ## @browserbasehq/[email protected] ### Patch Changes - [#1364](#1364) [`ca0630e`](ca0630e) Thanks [@tkattkat](https://github.com/tkattkat)! - Update model handling in agent evals cli - Updated dependencies \[[`605ed6b`](605ed6b), [`34e7e5b`](34e7e5b), [`943d2d7`](943d2d7), [`0e95cd2`](0e95cd2), [`d4237e4`](d4237e4), [`86975e7`](86975e7), [`d5e119b`](d5e119b), [`4e051b2`](4e051b2), [`6b5a3c9`](6b5a3c9), [`bb85ad9`](bb85ad9), [`88d28cc`](88d28cc), [`45bcef0`](45bcef0), [`6aa9d45`](6aa9d45), [`d382084`](d382084), [`1df08cc`](1df08cc), [`2b56600`](2b56600)]: - @browserbasehq/[email protected] ## @browserbasehq/[email protected] ### Patch Changes - Updated dependencies \[[`605ed6b`](605ed6b), [`34e7e5b`](34e7e5b), [`943d2d7`](943d2d7), [`0e95cd2`](0e95cd2), [`d4237e4`](d4237e4), [`86975e7`](86975e7), [`d5e119b`](d5e119b), [`4e051b2`](4e051b2), [`6b5a3c9`](6b5a3c9), [`bb85ad9`](bb85ad9), [`88d28cc`](88d28cc), [`45bcef0`](45bcef0), [`6aa9d45`](6aa9d45), [`d382084`](d382084), [`1df08cc`](1df08cc), [`2b56600`](2b56600)]: - @browserbasehq/[email protected] Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

@miguelg719

add claude 4.5 opus

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greptile-apps bot reviewed Dec 4, 2025

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cubic-dev-ai bot reviewed Dec 4, 2025

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tkattkat added 2 commits December 4, 2025 10:54

changeset

4aadd07

update test

2e54c27

miguelg719 reviewed Dec 4, 2025

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miguelg719 approved these changes Dec 4, 2025

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tkattkat merged commit 2b56600 into main Dec 4, 2025
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github-actions bot mentioned this pull request Dec 4, 2025

Version Packages #1305

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This was referenced Dec 5, 2025

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add claude 4.5 opus #1358

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tkattkat commented Dec 4, 2025 •

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why

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test plan

Summary by cubic

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greptile-apps bot commented Dec 4, 2025

Greptile Overview

Greptile Summary

Confidence Score: 5/5

Important Files Changed

Sequence Diagram

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tkattkat commented Dec 4, 2025 •

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