SparkChat
Generative AI chat. Customize instructions to fit a role, project, or workflow.
What you can do
Pick your model
Switch between models like you'd switch between different thinking partners. Each has its own personality.
Branch and delete
Branch conversations, delete messages, copy responses. A power-user chat that scopes to your project, not a single endless thread.
Multiplayer by default
Share a chat book with your team. Responses stream live for everyone. Web search and code run tools included.
Questions
Can I customize how SparkChat responds?
Yes. Set custom instructions to fit a role, project, or workflow. Tune it into a copilot, a drafting partner, or whatever you need.
Can I switch models?
Yes. Models are the AI engines that power the chat, provided by companies like OpenAI, Anthropic, Google, and others. Each has its own personality, strengths, and quirks. Switch between them anytime. In demo mode, DeepSeek Flash is available with a limited shared pool. On paid plans, your AI usage is metered. Check the pricing FAQ for details.
Can I share a chat with my team?
You can share the full space and others can join the same chat book. You can't share individual threads within a notebook right now. Responses stream live for everyone.
What makes it different from a regular chat app?
You can branch conversations, rename threads, fork a chat, delete messages, switch models mid-conversation. It's built like a notebook — scope conversations to projects, tune instructions. More power-user than a simple chat window.
Can I use other apps alongside?
Now you're thinking like a SupaKit user. Open Paperly to save output into notes, or keep the chat beside your project files in the same space.
Can I upload images and files?
Yes. Drop images and files right into the chat. Only some models support them. The model selector shows what each model can work with.
What tools are available?
Currently web search and code run. The model selector shows which tools each model supports. Web search lets the model pull in current information, and code run lets it execute Python for calculations and data work.
Where are my prompts sent?
Prompts are routed through OpenRouter to the model. We don't log or store your data. We just proxy it. Privacy settings are enabled on OpenRouter, and requests go through a shared key. That means no one can build a profile on you from your chats. You can also override the config to use your own OpenRouter key if you prefer. The model needs to read your prompt to respond, so avoid sending secrets either way.
Does it work offline?
Your content from previous visits will generally be available. New content generation and cloud-dependent features may be limited. Editing shared spaces while offline isn't recommended, especially if others are collaborating in them. For personal spaces, you should be fine.
How do I share my space?
In your open space, click the blue share button at the top right. From there, select an access level (editor or view-only), then copy the invite link or show a QR code. You can regenerate the link anytime to invalidate previous ones.
Share with colleagues, students, or friends. They don't need to be in your organization.
Do my collaborators need an account?
No. Share the invite link from your space and they can join right from their browser as a guest, or by signing in with Google or Email. They don't need a paid plan to collaborate with you.
Is my data private?
SupaKit is designed to be privacy focused. Content in your spaces is end-to-end encrypted between participants. We recommend setting your own keychain password in Settings after creating your account. Read our security page for more details.
Can I use it solo, without collaborators?
Absolutely. We use it that way ourselves, mostly for our own notes, travel-plans, projects, and whatever we're building. Collaboration is there when you need it or want to share it.
Do I need to install anything?
No. SupaKit runs in your browser. It opens with a link, no downloads or installs, for you or anyone you share a space with. You can pin it to your dock or home screen for quicker access and a dedicated window. It stays safely sandboxed in your browser.
Can I control space access for collaborators?
Yes. You can control this from the share button at the top right of your space, where you'll see all collaborators and their access levels. Each person can either have full write and edit access, or view-only, meaning they can see everything but can't make changes.
How many collaborators can I have?
For apps that involve streaming (e.g. Huddles, Screenshare, CloudBrowser) active participants are capped at about 5 per space on Standard, and up to 10 on Pro. For everything else, you can have quite a few more collaborators in a space without hitting limits.
We're still experimenting with these knobs. SupaKit is designed for active collaboration among smaller groups, not webinars or large calls. It may be able to handle a large number of participants, but the experience is tuned for smaller groups, whether that's a team, a classroom, a workshop, or a few people working together.
Limits are based on sustained usage, not occasional bursts. If you go over briefly, it won't be an issue.
