Subscriptions
A free tier that keeps your data, and a $5/month Standard plan with higher limits and pay-as-you-go beyond them.
Investors
Investor information
Sigma Domain is an early-stage company building an AI workspace that people bring their own tools and data to. Detailed materials are available under a non-disclosure agreement.
The product
What Sigma Domain is
Most AI assistants are closed systems: the vendor decides what the assistant can reach, and everything else is out of scope. Sigma Domain inverts that. Users connect their own APIs and data, publish tools other people pay to use, keep private storage the assistant can query, and collaborate with other people inside the same conversation.
The assistant runs on Claude, with second opinions available from roughly 70 other models across about 20 providers via Amazon Bedrock. Product overview
Model
Where revenue comes from
Usage beyond plan limits
Model and tool usage past the included allowance is billed as consumed.
Marketplace take
Tool publishers set a per-call price; Sigma Domain meters, bills, and takes a margin on each call.
Stage
Where things actually stand
Sigma Domain is pre-revenue and pre-marketing. The platform is in production across web, iOS, Android and desktop, with billing infrastructure, metering and a tool marketplace already built — but it has not yet been promoted to anyone, and this website is the first step in doing that.
We'd rather state that plainly up front than have you find it out on a second call.
Access
Confidential materials
The business plan, cost structure and financial model are available after signing a non-disclosure agreement. Signing requires a Sigma Domain account — a free one is fine, and it takes a moment.