Protocol releases, technical thinking, and updates from Arcus Labs
We sent a confirmation link to finish your subscription. Click it and you’re all set.
There is a difference between knowing what your AI did and knowing how it got there. Most governance platforms answer the first question. They log the model, the timestamp, the guardrail result. The second question requires a reasoning trace.
Read →
We are releasing the Epistemic Integrity Evaluation specification. EIE is an open protocol for measuring whether AI systems handle uncertainty honestly, consistently, and proportionally. Most evaluation frameworks measure whether the model got the answer right. EIE measures whether it behaved well when it did not know.
Read →
We are releasing the Iterative Reasoning Graph specification. IRG is an open protocol for building AI systems that reason in explicit, persistent, revisable structures rather than ephemeral token streams. The reasoning persists in a graph your team can inspect, replay, and audit.
Read →