How to Use ChatShare: Sign Up and Switch Between AI Models (2026)
In one line: ChatShare is a mirror site where ChatGPT, Gemini, Claude, Grok and other models run inside one site.
📌 Updated 2026-10-28. Models and rate limits change often on mirror sites; where this guide differs from the site, trust the site.
📚 On this page
What ChatShare is
ChatShare is an AI mirror site. It hosts ChatGPT, Gemini, Claude, Grok and other models in one place, so you pick from a menu instead of setting up an account with each provider.
Address: ai.chatshare.biz. chatshare.biz redirects there.
Access is sold as card keys: a one-day card, a weekly card and a monthly card. After activation, the expiry date shows in the account panel on the left.
Which models you can use
| Portal | Models you can pick |
|---|---|
| Self-select Plus portal | GPT models, sorted by availability, then a random account opens |
| New Plus portal | GPT-6, GPT-5.6, GPT-5.6 Sol, Pro, the image2.5 image model, plus the Claude, Gemini, Grok, Deepseek and Banana families |
| Gemini portal | 3.5 Flash-Lite, 3.8 Flash, 3.1 Pro, 4 Argon |
| Claude portal | Sonnet 5.5 and Haiku 5.5; Opus 5.5 and Fable 5.1 are marked Upgrade |
| Grok portal | Auto, Fast, Expert, Heavy, Build |
| AI image portal | Text-to-image and image-to-image, channel model gpt-image-2.5 |
The list changes. The dropdown on the site is the source of truth.
How to use it
1. Open the site
Go to ai.chatshare.biz in a browser and click the button in the middle of the homepage.
2. Register or sign in
First visit: click register, fill in your email address, a username, your password and the captcha, then submit.
Already registered: click sign in and enter your account name and password.
3. Pick a portal and start chatting
The left sidebar lists six portals.
Self-select Plus: a sort bar sits on top (overall ranking, reasoning availability, image availability, file upload, Work 5h quota), and the grid below holds Plus account cards with status and remaining usage. Open any card to chat.
New Plus: opens a chat window whose model menu covers the GPT family as well as the Claude, Gemini, Grok and Deepseek families.
Gemini portal: pick an account, then choose 3.5 Flash-Lite, 3.8 Flash, 3.1 Pro or 4 Argon from the model menu.
Claude portal: same pattern. Sonnet 5.5 and Haiku 5.5 are selectable; Opus 5.5 and Fable 5.1 carry an Upgrade label and are not included in the current plan.
Grok portal: the model menu offers Auto, Fast, Expert, Heavy and Build.
AI image portal: text-to-image or image-to-image, with size and resolution settings. The default channel model is gpt-image-2.5.
FAQ
Does ChatShare cost money?
Yes. It sells one-day, weekly and monthly cards. Check the site for current prices.
Can I open it from mainland China?
Yes, it works without extra network setup.
How is it different from the official ChatGPT or Claude?
ChatShare is a third-party site. It runs the providers' models, but the account, billing, data storage and support all live on this site. Official subscriptions do not carry over.
Is it safe to paste sensitive content?
Chats pass through ChatShare's servers. The site puts a notice above the account lists asking users to export conversations to their own computer and warning that chats left on the site may not be recoverable.
Things to watch out for
- Never enter passwords, verification codes, API keys, ID numbers or card numbers.
- Export important conversations. The site does not promise to keep chat history.
- Card keys expire: the account panel on the left shows the subscription end date.
- Models, rate limits and pricing change; check the site.