SESL turns documents, text and processes into deterministic rules and facts -
delivering the same, fully explained answer every time.
Guarantee that your business questions to any LLM (including ChatGPT) returns accurate,
authorised answers that you can substantiate with clear, reliable evidence at any time.
Watch a walkthrough of SESL and generative AI model creation in action.
Convert an existing document or just write the rules.
Provide the facts of a scenario and run SESL.
SESL evaluates all facts and tests. Always deterministic.
SESL generates a full rule trace of which rules apply.
Same input always produces the same output.
A clear syntax that non-programmers can follow.
Every result includes a rule-by-rule justification.
Ideal for regulated environments.
Handles malformed input safely.
Use via the CLI or ChatGPT MCP.
Explore product capabilities, industry solution patterns, and step-by-step documentation for building deterministic and auditable SESL models in production workflows.
Review the deterministic engine, MCP integration, and platform roadmap.
See legal, government, tax, banking, healthcare, and insurance use cases.
Access quickstart commands, FAQs, and the core user guides.
Run SESL models in online and batch mode with full command references.
Learn rules syntax, facts structure, validation, and execution behavior.
Connect SESL with ChatGPT and other LLM tools via the Model Context Protocol.
Last updated: February 16, 2026.
