About Langkast
Langkast exists because small teams were paying for ChatGPT, Claude, Gemini, and Perplexity separately — four subscriptions for the same job.
What it is
Langkast is one workspace that puts every major frontier model behind a single subscription: shared chats, your own documents, and one bill instead of four. New models are added as the labs ship them, at the same plan and the same price.
Why it exists
Most teams that use AI seriously end up subscribing to more than one model provider, because no single model is best at everything and switching costs are real. Paying full price for each one, per person, adds up fast for a small team. Langkast collapses that into a single subscription and a single switching cost of zero — pick whichever model fits the task, in the same chat.
Who it’s for
Founders and ops leads at small teams — roughly two to twenty people — who are already paying for more than one AI subscription and would rather consolidate than keep juggling logins, seats, and invoices across providers.
Model-agnostic, no lock-in
Langkast isn't built around one model provider's roadmap. Conversations are exportable straight from the chat interface — the product's job is to make switching models free, not to make switching away from it hard.