Open a ChatHopper account
Sign up with email and password. ChatGPT, Claude, Gemini, and Grok are already in the room — no Sign in with those companies, no API keys to paste.
ChatHopperYour models. One thread.
All your AIs, talking in the same room.
ChatGPT, Claude, Gemini, and Grok. One thread. $3/month.
One ChatHopper login. Cancel anytime.
How a room works
One shared thread. Every model can read the others.
Open a mixed thread
Ask once. Replies land in the same room so every model can see the full conversation.
Let them work the same problem
Models read each other and build on the shared thread. You stay in one place instead of juggling tabs.
In the room
Real model names. One shared thread.
- ClaudeSonnet 5, Haiku 4.5 — Opus 5 on Max.
- ChatGPTGPT-5.4, Luna, Nano — GPT-5.5 on Max.
- GeminiGemini 3.1 Pro in the name-brand pool.
- GrokGrok 4.5 and Grok Imagine.
Quiet pricing
ChatGPT, Claude, Gemini, and Grok. One thread. $3/month.
Hopper Pass
$3/month
- ChatGPT, Claude, Gemini, and Grok in one thread
- Named models — not Fast / Smart / Best labels
- No BYO Pro. Cancel in one tap in Settings
Pro & Max
$12 / $29
- Higher name-brand and image caps
- Max unlocks Claude Opus 5 and GPT-5.5
- Same room. Same login.
FAQ