fix(models): remove retired claude-3-7-sonnet and update default models

[waleedlatif1]

Summary

• Remove claude-3-7-sonnet-latest from Anthropic provider (retired by Anthropic)
• Update stagehand default models to Claude Sonnet 4.5 and GPT-5
• Sync browser_use block model list with official SupportedLLMs enum (add browser-use-2.0, gemini-3-flash-preview)
• Update related tests

Type of Change

• Bug fix

Testing

Tested manually

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
docs	Skipped		Feb 21, 2026 11:04pm

[greptile-apps]

Greptile Summary

This PR removes the retired claude-3-7-sonnet-latest model from the Anthropic provider and updates default models across the codebase to current versions.

Changes made:

• Removed claude-3-7-sonnet-latest model definition from apps/sim/providers/models.ts
• Updated stagehand routes to use claude-sonnet-4-5-20250929 for Anthropic and gpt-5 for OpenAI
• Added browser-use-2.0 and gemini-3-flash-preview to browser_use block model options
• Updated test assertions to reflect the removal of the retired model

The changes are consistent across all affected files and maintain backward compatibility by updating to newer model versions.

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• All changes are straightforward model name updates and removals. The retired model is cleanly removed from all locations, replacement models are well-established and already defined in the system, and test updates are consistent with the code changes.
• No files require special attention

Important Files Changed

Filename	Overview
apps/sim/providers/models.ts	Removed retired claude-3-7-sonnet-latest model definition from Anthropic provider
apps/sim/providers/utils.test.ts	Removed claude-3-7-sonnet-latest from temperature and computer use capability tests
apps/sim/app/api/tools/stagehand/agent/route.ts	Updated default models: Anthropic to claude-sonnet-4-5-20250929, OpenAI to gpt-5
apps/sim/app/api/tools/stagehand/extract/route.ts	Updated default models: Anthropic to claude-sonnet-4-5-20250929, OpenAI to gpt-5
apps/sim/blocks/blocks/browser_use.ts	Added browser-use-2.0 and gemini-3-flash-preview model options to dropdown

_{Last reviewed commit: fe6a622}

[greptile-apps]

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