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Quancis

One Model. Three Ways In.

Quancis builds Kael, a composite intelligence — and the products people actually use it through.

KaelThe model, as an API.

Many Models. One Answer.

Kael is a system, not a single model: a draft is produced, checked, and refined before anything comes back to you. You call one endpoint, in the request format you already send.

AcceptsChat CompletionsResponsesAnthropic Messages
Explore Kael
Quan HarnessThe coding agent.

Hand It A Task. Get It Back Done.

Point Harness at a codebase and it reads, plans, edits, and checks its own work before handing anything back. It runs in a real project environment, in whatever stack you already use.

  • A live preview the moment something changes
  • Git push and pull from a cloud file system
  • MCP tools and skills for work beyond code
Explore Harness
Quan ChatThe assistant.

Just Ask. It Checks Before It Answers.

The same system as the API and Harness, in a conversation. Every answer is checked before it reaches you.

  • Deep reasoning for the hard questions
  • Web access for when the answer is out there
  • One subscription, unlimited conversations
Try Quan Chat
Kael, in brief

The Model, At A Glance.

Kael is in beta. It is built for accuracy over speed, and it is strongest at coding, security, software engineering, agentic work and math. These are the facts a developer asks for first.

Model ID
kael-betaThe string you pass as "model".
Status
BetaThings will change as we learn from real use.
Context window
1M tokensInput per request.
Max output
128k tokensPer response.
Input
Text and imagesPDFs, video and other file types are on the way, not in the beta yet.
Languages
EnglishOther languages have not been tested, so they are not listed as supported.
API formats
Chat Completions, Responses API, Anthropic MessagesUse the SDK you already have.
Thinking levels
FiveLow, High and Max today. z-low and z-high are not released yet.
Everything about Kael →

One Intelligence. A Whole System Inside It.

Quancis comes from quán, the Chinese word for the whole. Not a fragment, and not a committee of parts pretending to be one thing. It's how a company works: hundreds of people and tools, and the world sees one name on the door.

Kael works the same way: many intelligences, one answer. The API, Harness, and Chat are three ways of reaching the same system.

  1. Draft

    A first pass at the answer is produced, the way any single model would attempt it.

  2. Check

    That draft is reviewed against the request before it reaches you, catching what one pass tends to miss.

  3. Refine

    The system corrects what the check found, and only the refined result comes back.