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How-to · 2026-07-31 · 7 min

How to use Claude, GPT, and Gemini together in one chat

You do not need three browsers. You need a switch rule — when each model enters the same thread.

Want to use Claude, GPT, and Gemini together without copy-paste chaos? On zy.ai Pro/Ultra you open one chat, keep one history, and switch models when the job changes. Free plans stay on free models first.

Step-by-step workflow

  1. Start on a free model for outline or sketch (Free tier).
  2. When quality stalls, switch to Claude for careful code/long structure.
  3. Use GPT when you want a generalist second pass.
  4. Try Gemini for research-shaped or multimodal-heavy turns.
  5. Keep the same thread — never re-explain the project in a new lab login.

Deeper comparison: Claude vs GPT vs Gemini.

Switch rules that work

  • Plan → free — brainstorm and outline cheaply
  • Hard code → Claude-style depth when available on Pro+
  • General polish → GPT when you need a different cut
  • Research synthesis → Gemini when that strength fits
  • Stuck twice → change model, not the whole tool
Multi-model is a method. Random model spam is not.

One subscription framing: one subscription many AI models.

Plans required

  • Free — free models only
  • Pro $15/mo — frontier models including Claude/GPT/Gemini/Grok as listed
  • Ultra $45/mo — capacity, Voice, agents, Deep Research

Upgrade timing: Free vs Pro. Free online overview: free AI chat online.

Optional tools mid-chat

Connect MCP servers (GitHub, Notion, …) on member plans so models act on your stack — MCP tools in AI chat. Docs: /docs.

Run the multi-model workflow

Start free on zy.ai, then unlock frontier models on Pro when the work earns it.