Chat
One conversation with the model you choose. Streamed in real time, with the model named on every response.
Good for
- Drafting an email or a post
- Working through a problem step by step
- Getting a quick explanation
Multi-model AI workspace
Your AI models. One workspace.
Use GPT, Claude, Gemini and Grok. Choose a model, compare responses, or combine different perspectives with Max Mix.
No credit card required
Illustrative example. This is a visual demonstration. It does not call any model.
Example prompt:
Draft a short, friendly email to move tomorrow's meeting to Thursday.
Chat
Model you choose
One model answers. Keep the conversation going with it.
Compare
Response A
Response B
Response C
The same prompt goes to 2 or 3 models. Read the responses side by side.
Max Mix
Response A
Response B
Response C
Synthesis
Where they agree
Where they differ
Several models respond, then one synthesis brings their contributions together.
This is a visual demonstration. It does not call any model.
Try it freeAI models
One workspace, four AI providers
ChatAIMax connects to models from OpenAI, Anthropic, Google and xAI, so you can use them side by side without switching apps or accounts.
Connected to
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GPT
by OpenAI
OpenAI's family of language models, available in Chat, Compare and Max Mix.
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Claude
by Anthropic
Anthropic's family of language models, available in Chat, Compare and Max Mix.
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Gemini
by Google
Google's family of multimodal models, available in Chat, Compare and Max Mix.
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Grok
by xAI
xAI's family of language models, available in Chat, Compare and Max Mix.
Available models depend on your plan and may change over time.
Three ways to work
Choose, compare or combine
Each mode answers a different need. Use the one that fits what you are doing right now.
Available on PRO
Compare
Send one prompt to 2 or 3 models and read their responses side by side. Pick the one you prefer to continue the conversation.
Good for
- Contrasting two explanations of the same topic
- Choosing the tone you like best for a draft
- Seeing where models disagree
Available on PRO
Max Mix
Ask several models at once and get one synthesis that brings their contributions together and points out where they differ.
Good for
- Exploring an idea from several angles
- Getting an overview before you decide
- Spotting points worth double-checking
Max Mix
Several perspectives, one clear answer
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Send one prompt
Write your question once, the same way you would in a chat.
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Several models respond
Two or three models work on it at the same time.
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Get a synthesis
A model brings the responses together, showing where they agree and where they differ. The original responses stay available to read.
Max Mix combines perspectives; it does not check facts. Agreement between models is not proof, and a synthesis is not guaranteed to be more accurate than a single model. Review important information before relying on it.
Chat
Compare
History
PDF
Images and PDFs
Max Mix
Write your message
All in one place
Everything you need, in one conversation
Choose the model that fits each task, compare responses side by side or combine perspectives with Max Mix, without jumping between apps.
On PRO, attach images and PDF files to the models that support them. Come back to any conversation with history and search, and see which provider and model produced each response.
All of it in English or Spanish, in a light or dark theme, right from your browser.
- GPT
- Gemini
- Claude
- Grok
Pick the right AI model for every task.
Use models from OpenAI, Anthropic, Google and xAI with a single account and choose the one you want for each conversation. To see how their answers differ, send the same prompt to several models with Compare.
Available models depend on your plan.
Illustrative example
Help me plan a three-day trip to the mountains on a mid-range budget.
Claude
Response
Features
Built for everyday work
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Real-time responses
Responses appear as they are written, and you can stop a response at any moment.
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History and search
Your conversations are saved so you can come back to them, search, rename or delete them.
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Images and PDFs PRO · compatible models
Attach images and PDF files when the selected model supports them. File limits apply.
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Know who answered
Every response shows the provider and the model that produced it.
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English and Spanish
Use the interface in English or Spanish.
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Light and dark theme
Work in the theme that is easier on your eyes.
All your models, one subscription
Instead of a separate app for each provider, ChatAIMax PRO brings GPT, Claude, Gemini and Grok together, with Compare and Max Mix to use them side by side.
| Feature | Provider A | Provider B | ChatAIMaxUSD 29 per month |
|---|---|---|---|
| OpenAI GPT | Included | Not included | Included |
| Anthropic Claude | Not included | Included | Included |
| Google Gemini | Not included | Not included | Included |
| xAI Grok | Not included | Not included | Included |
| Compare models side by side | Not included | Not included | Included |
| Max Mix synthesis | Not included | Not included | Included |
PRO
All in one place
Includes:
- OpenAI GPT
- Anthropic Claude
- Google Gemini
- xAI Grok
- Compare and Max Mix
- Images and PDFs
USD 29 per month
One account for every model
For USD 29 a month, PRO gives you models from OpenAI, Anthropic, Google and xAI, plus Compare, Max Mix and attachments, in a single account. PRO includes a usage allowance in credits, and model availability depends on the plan.
Provider A and Provider B represent apps that only offer their own provider's models.
Free vs PRO
Do more. Go PRO.
Free is for getting to know ChatAIMax. PRO unlocks every mode, more models and higher limits.
| Feature | Free | PRO |
|---|---|---|
| Chat with the model you choose Real-time responses, with the model named on each one | Included | Included |
| History and search Come back to your conversations whenever you need them | Included | Included |
| Top-tier models A wider selection beyond the lower-cost models | Not included | Included |
| Compare One prompt, 2 or 3 models, responses side by side | Not included | Included |
| Max Mix One synthesis of several models' perspectives | Not included | Included |
| Images and PDFs Attach files to models that support them | Not included | Included |
| Allowance that renews Free has a one-time starter allowance; PRO renews every period | Not included | Included |
Pricing
Two plans, no surprises
Start with Free to get to know ChatAIMax. Move to PRO when you need more modes, more models and higher limits.
Free
To get to know the product
USD 0
No credit card required
- Chat with the model you choose
- A selection of lower-cost models
- Real-time responses you can stop at any moment
- Conversation history and search
- Provider and model shown on every response
- Export your data and delete your account
- One-time starter allowance (does not renew)
- Not included: Compare 2 or 3 models side by side
- Not included: Max Mix synthesis
- Not included: Top-tier models
- Not included: Images and PDFs
PRO
For regular use with higher limits
USD 29 per month
Renews automatically each month until you cancel. Taxes may apply depending on your country.
Everything in Free, plus:
- Compare: one prompt, 2 or 3 models, responses side by side
- Max Mix: one synthesis of several models' perspectives
- A wider selection, including top-tier models
- Attach images and PDFs on compatible models
- Longer messages and more conversation context
- Usage allowance in credits that renews every month
PRO has higher limits, not unlimited use. Usage is measured in credits, and each model uses credits according to its cost. Model availability depends on the plan.
Privacy
Privacy in brief
What happens with what you write, in plain words. The full policy has the details.
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Your prompts go to the providers you use
In Chat, to the provider of the model you choose. In Compare and Max Mix, to each selected provider; in Max Mix, the synthesizing model also receives the other responses.
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Automated moderation
Before a message reaches a model, it is checked by an automated moderation service, which also receives its content.
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Your data, under your control
You can delete conversations, export your data and delete your account from the app.
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No trackers on this site
This website does not use analytics or advertising cookies.
FAQ
Frequently asked questions
What is ChatAIMax?
ChatAIMax is a workspace for using AI models from OpenAI, Anthropic, Google and xAI in one place. You can chat with one model, compare several side by side, or combine their perspectives with Max Mix.
Do I need accounts with the AI providers?
No. You only need a ChatAIMax account. ChatAIMax connects to the providers for you.
Does my ChatGPT, Claude or other AI subscription give me access?
No. ChatAIMax is a separate product with its own plans. Subscriptions to ChatGPT, Claude, Gemini, Grok or other services do not transfer to ChatAIMax, and a ChatAIMax plan does not give you access to those products.
What is the difference between Chat, Compare and Max Mix?
Chat is one conversation with the model you choose. Compare sends the same prompt to 2 or 3 models and shows their responses side by side. Max Mix asks several models and gives you one synthesis of their contributions and differences. Max Mix does not check facts, and its synthesis is not guaranteed to be more accurate than a single model.
What does Free include? Does it renew?
Free lets you try Chat with a selection of lower-cost models. It includes a one-time starter allowance that does not renew. No credit card is required; you will need to verify your email before your first message.
What limits does PRO have, and how is the subscription managed?
PRO has higher limits, not unlimited use: it includes a usage allowance in credits that renews every billing period, and each model uses credits according to its cost. Price, billing period and cancellation are shown in the app before you subscribe and are described in the Terms of Service.
What happens with my conversations and files?
Your conversations stay in your account until you delete them, and attached files are kept while your account exists. Their content is sent to the providers of the models you use. The Privacy Policy explains which providers receive what and how to delete your data.
Which languages and file types are supported?
The interface is available in English and Spanish. On PRO, you can attach images and PDF files when the selected model supports them; size and page limits apply and are shown in the app.
Try ChatAIMax for free
Create your account and start chatting with the model you choose.
Start free
No credit card required