fix(copilot): make default model opus 4.5

[Sg312]

Summary

Make copilot default model opus 4.5

Type of Change

• Bug fix

Testing

Manual

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 12, 2026 8:50pm

[greptile-apps]

Greptile Overview

Greptile Summary

Changed the default Copilot model from claude-opus-4-6 to claude-opus-4-5 in the store's initial state and model selection fallback logic.

Critical Issue:

• The migration is incomplete. Three API route files still default to claude-opus-4-6: apps/sim/app/api/v1/copilot/chat/route.ts, apps/sim/app/api/mcp/copilot/route.ts, and apps/sim/app/api/copilot/chat/route.ts
• This creates inconsistent behavior where the UI defaults to opus-4-5 but the API routes may default to opus-4-6
• All default model references should be updated together to ensure consistent behavior across the application

Confidence Score: 2/5

• This PR creates inconsistent default model behavior between UI and API routes
• The change is incomplete - while the store now defaults to opus-4-5, three API route files still use opus-4-6 as their default, which could lead to unexpected behavior and confusion
• The three API route files that still reference claude-opus-4-6 as default need to be updated: apps/sim/app/api/v1/copilot/chat/route.ts, apps/sim/app/api/mcp/copilot/route.ts, and apps/sim/app/api/copilot/chat/route.ts

Important Files Changed

Filename	Overview
apps/sim/stores/panel/copilot/store.ts	Changed default model from opus-4-6 to opus-4-5, but incomplete - other API routes still use opus-4-6 as default

_{Last reviewed commit: 09c9477}

[greptile-apps]

_{1 file reviewed, 1 comment}

_{Edit Code Review Agent Settings | Greptile}