Claude Opus 4.5 Early Access in Chat Mode

Example workflows

Starting points built from this record, not transcripts of a run. Each prompt is written the way it should be sent, as one paragraph, and each is worth editing before you send it.

1. 01

   Stand it up from scratch

   You have read the record and want Claude Opus 4.5 Early Access in Chat Mode working in a real project rather than a sandbox.

   Set up Claude Opus 4.5 Early Access in Chat Mode in this project — test Anthropic's newest reasoning model in Chat Mode. Walk it end to end, tell me exactly what you changed, and flag anything I have to switch on myself before it works.

   Expected outcome

   A working setup, a plain list of what changed, and a short list of anything left for you to switch on. Check that list before assuming it is done.

2. 02

   Architect complex features

   The record lists this as one of the jobs Claude Opus 4.5 Early Access in Chat Mode is meant for, so it is a fair first test of whether it fits your app.

   In this project, use Claude Opus 4.5 Early Access in Chat Mode for architect complex features. Build the smallest version that a real user could complete end to end, keep the change scoped to that path, and tell me how to test it myself.

   Expected outcome

   One complete path a user can walk, the files and settings that changed, and the steps to test it. Walk it yourself before you ship it.

3. 03

   Review it before you publish

   Claude Opus 4.5 Early Access in Chat Mode is wired in and you are about to put it in front of people. This is the pass that catches the half-configured version.

   Review how this project uses Claude Opus 4.5 Early Access in Chat Mode before I publish. Check frontier reasoning quality and available in Chat Mode only, list anything that is missing, misconfigured, or only half wired, fix what is safe to fix, and tell me what you left alone and why.

   Expected outcome

   A findings list split into what was fixed and what was left, with a reason for each. Anything left alone is yours to decide on.

4. 04

   Diagnose subtle bugs across many files

   A second job the record lists for Claude Opus 4.5 Early Access in Chat Mode, useful once the first path works.

   Extend this project so Claude Opus 4.5 Early Access in Chat Mode also covers diagnose subtle bugs across many files. Reuse what is already wired rather than adding a parallel setup, and tell me what you reused and what is new.

   Expected outcome

   A second path built on the same setup, plus a note on what was shared and what was added.

Frequently asked

• What is Claude Opus 4.5 Early Access in Chat Mode?

  Claude Opus 4.5 Early Access in Chat Mode is Lovable's AI Models feature: Test Anthropic's newest reasoning model in Chat Mode. Opt-in early access to Claude Opus 4.5 inside Chat Mode for deeper reasoning, longer-horizon planning, and stronger code understanding on complex projects.

• Is Claude Opus 4.5 Early Access in Chat Mode GA or in beta?

  Claude Opus 4.5 Early Access in Chat Mode is generally available (GA) on Lovable.

• What Lovable plan includes Claude Opus 4.5 Early Access in Chat Mode?

  Claude Opus 4.5 Early Access in Chat Mode is available on Lovable's Pro and Business plans plan.

• When did Claude Opus 4.5 Early Access in Chat Mode launch?

  Claude Opus 4.5 Early Access in Chat Mode launched on Nov 12, 2025.

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