caffeine

Create successful apps and websites through chat — on a safe open tech stack for AI that rolls back limits

[caffeine @caffeineai]

Ask anything. Across everything.

https://t.co/DwqUwDU3Gh

[caffeine @caffeineai]

Once your app's live, you can see how it's actually doing.

Visitors, pageviews, how long people stay. It's built in, so there's nothing to set up and no tracking tag to paste in.

[caffeine @caffeineai]

Three more reasons to build your next app on Caffeine.

[caffeine @caffeineai]

On Caffeine, you just ask for what your business needs, and your app can do it.

That could be checking guests in, sending RSVP links, approving new members, or answering questions about your menu.

[caffeine @caffeineai]

Two people can now build the same Caffeine app.

One person asks for a change. Caffeine rebuilds the app, and the other person watches it happen on their screen. Finish for the day and let someone else pick it up. In the morning, ask Caffeine what got built while you were away.

Nobody has to wait their turn.

[caffeine @caffeineai]

Your Caffeine app sends its own emails.

Booking confirmations, newsletters, and calendar invites go out without an email provider or a single API key.

[caffeine @caffeineai]

Here's what's included with Caffeine Studio.

You can buy your own domain right inside Caffeine, and your app gets built-in email, analytics, App Market publishing, and pages that are ready for search.

[caffeine @caffeineai]

Give your app its own name.

On Studio, you can search for a domain and buy it right inside Caffeine, with no registrar and no DNS to set up.

[caffeine @caffeineai]

When you join an app someone else built, you can ask Caffeine what it is.

Type a question in the chat, like: tell me in five bullet points what this app is about. Caffeine tells you what the app does and whether it's live yet. The chat also shows who sent each message, so you can tell who built what.

Five bullet points and you're up to speed.

[caffeine @caffeineai]

Here are 3 great reasons to build your next app on Caffeine.

[caffeine @caffeineai]

We've just added Claude Sonnet 5.5 to Caffeine.

It's Anthropic's model for work you can describe clearly: fix this bug, add a booking form, polish this page. Anthropic says it's 30% faster than Sonnet 5, and cheaper than Opus 5.5.

Keep Opus 5.5 for planning something new, and hand the follow-up work to Sonnet 5.5. On Caffeine, you can switch between models in the same conversation.

[caffeine @caffeineai]

Caffeine writes real code, and it doesn't hide it from you.

Open the code tab and read the actual Motoko backend and frontend, file by file. It's all there, and it's yours to export and keep.

[caffeine @caffeineai]

You don't have to stay on one model for a whole project.

You can switch in the middle of a conversation, so plan with a frontier model, then move to Sonnet 5 or DeepSeek for the smaller jobs and keep your credits for the work that needs them. You can check each model's cost in the picker before you choose, and all of them are available on every plan.

Pick your model and start building: https://t.co/QsJMARzLR3

[caffeine @caffeineai]

You can now choose which model builds your app on Caffeine.

They aren't interchangeable. A lightweight model answers a quick question about your app fast and cheaply. A frontier model takes longer and uses more credits, because it's working through something much bigger, like planning a new app from scratch. Match the model to the job and you save time and credits.

Here's what each one is good at, and when we'd reach for it.

[caffeine @caffeineai]

GPT-6 Astra is OpenAI's best model across the board, and OpenAI says the most demanding and important projects still call for it.

On Caffeine, that's the big build with a lot of moving parts. Give it a proper brief, then give it time to work.

Try: "Build an inventory system for our three warehouses, with approval steps and low-stock alerts."