AI that proves
code correct.
Theorem is building AI that is as capable at program verification as it is at writing Python. Machine-checked proofs, not just plausible output.
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The thesis
A model that writes code is useful.
A model that proves its code correct is trustworthy.
Theorem is built to do both — at the same level.
One model across the full verification loop.
Synthesis
Generate code and its formal specification together, so intent is captured the moment software is written.
Verification
Discharge proof obligations against the spec with a machine checker. No hallucinated guarantees — only what is proven.
Repair
When a proof fails, the model reads the counterexample, localizes the fault, and rewrites until the property holds.
Early results
98.4%
Proof obligations discharged on internal suite
12×
Faster spec-to-proof than expert baselines
0
Unsound guarantees — every claim is machine-checked
Figures reflect internal evaluation and are subject to change. Full methodology shared with whitelisted partners.
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Access to Theorem is granted by whitelist. Tell us about your codebase and the guarantees you need.