Learner today
The signer reviews and owns every meaning the system proposes.For educators and schools
AI access with an academic safety boundary.
Built for schools serving Deaf and hard-of-hearing students: make meaning-changing recognition errors visible, while curriculum, model choice, and policy stay under school control.
05 / School value
The product is not another universal translator. It is a configurable assurance layer for academic interaction.
Try the assurance boundary
One word can change the lesson.
These controlled stress-test pairs demonstrate the kind of semantic change Sign First is designed to surface. They are not observed student errors or recognition prevalence estimates.Does a fraction get bigger or smaller when I divide it?
Does a fraction get bigger or smaller when I multiply it?
A fluent answer teaches the opposite mathematical relationship.
Confidence does not override an answer-changing conflict.

Academic risk
Not every recognition error deserves the same response.
A style difference may be harmless. A changed operation, quantity, negation, entity, or time can change the task. Selective intervention focuses on that distinction.
Institutional control
Schools choose the boundaries and the model.
The architecture is recognizer- and LLM-neutral. Governance is intended to support purpose, retention, authorization, deletion, and audit policies rather than bypass them.
Evidence first
Pilot claims wait for actual pilots.
No student-ready, classroom-ready, partnership, or deployment claim is made. Controlled demonstrations establish technical behavior only.
From working layer to natural access
The interface gets quieter. The protection stays.
Sign First moves from visible confirmation toward risk-selective background assurance as evidence supports it. Learner authority does not disappear with the interface.Support next
Support can deepen with the learner without shrinking their authority.Natural access
The interface recedes; the right to reject or repair never does.Continue exploring