Models, plan mode & chat sessions
Pick models, plan before building, fork sessions, and attach images to guide the AI.
The chat has more controls than the message box suggests. This page collects the ones that change how the AI works for you: model choice, plan mode, sessions, and attachments.
Choosing a model
The model selector in the chat lets you pick which AI model handles your request. The default is a sensible balance; switch when a task calls for it — a stronger model for a gnarly architectural change, a faster one for quick iterations.
Plan mode
Plan mode makes the AI stop after planning: it lays out the steps it would take without building anything. Use it when the request is large, risky, or vague in your own head — reviewing a plan costs seconds, reviewing a wrong build costs a revision round. Approve the plan and execution proceeds as usual.
Sessions: parallel and forked conversations
A business isn't limited to one conversation:
- Multiple sessions keep unrelated topics separate — one session about invoicing, another about the mobile layout.
- Forking copies a session at its current point so you can explore an alternative direction without losing the original conversation's context.
Attachments and feedback
- Attach images to any message: screenshots of bugs, photos of paper forms to digitize, competitor screens, sketches. Visual context routinely beats long descriptions — and for pointing at your own app, annotate the preview.
- Rate responses with the feedback controls on messages. It calibrates the assistant for your workspace and flags bad answers to the platform.
Related
- Effective prompting on Evonx — what to put in the message itself.
- Evolution Threads explained — where chat ends and structured work begins.
Last updated: September 4, 2026