Open Prompts
Our commitment to transparency — and its limits
What we publish
The Factiator analytical methodology is documented publicly on the Methodology page. This includes the five scoring dimensions, the epistemic tag system, the verdict scale, the bias detection framework, and the layer separation principle. You can read exactly what the engine evaluates and how evidence is weighted.
This level of transparency is sufficient for scientific scrutiny, journalistic verification, and academic citation. If our methodology is flawed, it can be identified and challenged on the basis of what is published.
What we do not publish
The specific prompt architecture, instruction sequencing, and technical configuration of the Claim Intelligence Engine are not published. This is a deliberate decision, not an omission.
The distinction we draw: what the engine evaluates is public. How it is technically implemented is proprietary.
This is the same distinction drawn by any analytical institution — the evaluation criteria for a credit rating, a peer review process, or a journalistic editorial standard can be described publicly without publishing the internal operational details that make gaming or copying the system trivially easy.
Why not fully open-source?
Full prompt publication would allow exact replication of the engine without the surrounding quality controls, version discipline, and calibration testing that we apply before each release. A copied prompt without these controls would produce unreliable outputs under the Factiator name — which would harm both users and the credibility of the methodology itself.
We are a small independent operation. The prompt system represents significant intellectual work and is our primary competitive asset. Revenue from the product funds continued development of the methodology. Open-sourcing the implementation would undermine this without meaningfully increasing transparency beyond what the public methodology documentation already provides.
Our commitment
We commit to keeping the methodology documentation current with each engine version. When the engine changes, the methodology page is updated to reflect what changed and why. The changelog documents every version.
If you believe the published methodology is inconsistent with the outputs you observe — that the engine is not applying the standards it claims — we want to know. Use the contact page. That kind of scrutiny is exactly what the product is designed to withstand.
VALINORSK LLC | factiator.com | Last updated: March 2026