Use every major AI model in one workspace.
One workspace that knows how to talk to GPT, Claude, Gemini, and Grok — plus 500+ more through OpenRouter. Pick the best model for the moment, and pay only the provider.
Any model. One workspace.
GPT-5.6 Sol, Claude Fable 5, Grok 4.6, Gemini 3.1 Pro — and 500+ via OpenRouter. You pay each provider at cost. We add nothing on top.
Web search included
1,000 plan credits a month on Pro — 250 during the trial — covering web search and the built-in model. Lifetime uses your own LinkUp or Exa key.
Drop any file in
PDFs, images, code, documents. We extract the text so the model can actually read it.
Branch any reply
Don't like the answer? Fork the conversation and try a different model, without losing the thread.
Keys encrypted at rest
Encrypted in this browser's vault with AES-256. Your key goes through our server only when you send a request, and it is not stored there.
Bring custom endpoints
OpenAI-compatible? Ollama? Azure? Anything speaking that protocol plugs right in.
No training on you
We don't train on your conversations, don't resell your data, don't even look at it.
Every major AI model.
One workspace.
Connect your API keys from any provider and access all models from a single interface. Switch mid-conversation without losing context.
| Provider | Model |
|---|---|
| OpenAI | GPT-5.6 Sol |
| OpenAI | GPT-5.4 Mini |
| Anthropic | Claude Opus 5 |
| Anthropic | Claude Sonnet 5 |
| xAI | Grok 4.6 |
Gemini 3.1 Pro | |
| OpenRouter | 500+ models |
Pricing sourced from provider websites as of May 2026. OpenRouter models vary by provider.
Built for people who
use AI seriously.
Model switching mid-conversation
Start with GPT for a first draft, switch to Claude Opus for review, then use Grok for real-time research — all without losing conversation context. One click to switch, zero friction.
AES-256 encrypted API keys
Keys are encrypted in your browser's vault with AES-256. They go through our server with your request, are used in memory, and are not stored there.
Zero markup on AI usage
You pay OpenAI, Anthropic, xAI, Google, LinkUp, and Exa directly at their published rates. Multimodel Chat never marks up usage. Pro is $2/month; Lifetime Access is $39 one time.
Web search integration
Search the web directly from your chat using App Search, your own LinkUp key, or your own Exa key. Get real-time information and cite sources. Pro includes 1,000 plan credits a month for search and the built-in model; Lifetime uses your own search key.
File uploads and document analysis
Upload images, PDFs, documents, and code files. Models with vision capabilities can analyze images. Text is extracted from documents for AI processing.
Conversation history and branching
Your conversations are saved in this browser and searchable. Branch from any message to explore different directions, and pick up where you left off.
How different people
use Multimodel Chat.
One platform, different workflows. Here's how Multimodel Chat fits into real work.
For developers
Use Claude for complex refactors, GPT for boilerplate, and Grok for researching the latest libraries — all in one conversation.
Recommended: Claude Opus 5 + GPT-5.6 Sol
For writers
Draft with GPT's natural prose, fact-check with Claude's rigor, and research trending topics with Grok's real-time data.
Recommended: GPT-5.6 Sol + Claude + Grok
For researchers
Analyze documents with Claude's long context, search the web for current data, and synthesize findings across multiple models.
Recommended: Claude Opus 5 + Gemini 3.1 Pro
For teams
Everyone brings their own keys. No shared billing, no usage caps per person. Each team member controls their own AI spend.
Recommended: Any provider combination
What is an AI chat interface?
An AI chat interface is the layer between you and the models: where you type a message, choose which model answers, and keep the thread going.
The model does the reasoning; the interface decides how much of it you can reach. A plain single-model chat box is one kind of interface. A multi-model workspace — one that holds several providers, file and image uploads, web search, and branches off any message — is another.
What separates a capable AI chat interface from a basic one:
- Switch models and providers mid-conversation without losing context
- Choose which model answers each message, and compare replies
- Keep searchable history and branch from any point in the thread
- Upload images, PDFs, and documents for models with vision or long context
- Search the web and cite sources from inside the conversation
- Hold your provider keys under your own control
The Multimodel Chat interface
A browser workspace built around switching: GPT, Claude, Gemini, Grok, and 500+ more in one thread, with keys encrypted in your vault and no token markup.
Security-first
architecture.
Your API keys are credentials to your AI provider accounts. We treat them that way.
Your keys, your control
Connect any provider. Disconnect anytime. Your keys are always yours.
Read the full security guide → Is AI Chat Safe?
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7-day free trial. No credit card. Pro $2/month or Lifetime $39.
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