Switch between ChatGPT (GPT-5.5), Claude Opus, Gemini, DeepSeek, and the best open-source models mid-conversation — your context comes along. Pay by token at transparent prices, and pick the model that fits the task and your budget.
ChatGPT · Claude · Gemini · DeepSeek + open-source
Anthropic · Claude
Deep reasoning & long-context analysis
OpenAI · ChatGPT
Versatile, fast, strong at code
Google · Gemini
Multimodal & huge context windows
DeepSeek · Qwen · Kimi · Llama
Private, low-cost, no lock-in
You choose, not us
Start on GPT-5.5, hand a hard step to Claude Opus, summarize with Gemini — all in one thread. Your messages and files carry over.
Run Qwen, DeepSeek, Kimi, or Llama when you want privacy or lower cost — the same chat, a cheaper brain.
Transparent per-token pricing per model. See the cost before you send, and choose the quality-to-budget tradeoff yourself.
Your data, papers, and figures stay attached as you switch — no re-uploading, no losing the thread.
Built for real work
Send the toughest derivations to Claude Opus; cross-check with another model in the same thread.
Try it nowDraft and refactor quickly on GPT-5.5 or an open-source model to keep costs down.
Try it nowHand images, long PDFs, and big context to Gemini 3.5 without leaving the conversation.
Try it nowUse open-source models for sensitive data or high-volume work at a fraction of the price.
Try it nowOne chat, every frontier and open-source model, token-based pricing you control. Bring your own task.
Open MindChat