TRUSTED BY LAWYERS, STUDENTS, AND COMPLIANCE TEAMS

The problem isn’t that AI is wrong.
It’s that we believe it’s right.

AI hallucination lawsuits up 808% ↑ in eight months. 9+ careers ended. Most were preventable with verification.

0
Court Cases
$0.00B
Deepfake Fraud ‘26
0%
Worst AI Error Rate
5 yrs
False Federal Filing

ZH-1 catches fabricated citations, verifies regulatory eligibility, and scans documents for hallucinated facts — so you never file, submit, or publish something that isn’t real.

Lawyers: Verify every citationStudents: Check every sourceGov agencies: Compute eligibility from lawGrant writers: Find what you qualify for
Try the Live DemoSee How It Works
Since Feb 1, 2026
Verified Checks
Correction Rate
Errors Caught

Stats since Feb 1, 2026. Results are computed from encoded rules, not AI generation. External data sources are subject to standard validation.

zh verify
$ zh verify --rule "7 CFR 273.9"
[1/4] Loading ruleset... done
[2/4] Evaluating input... done
[3/4] Computing decision... ELIGIBLE
[4/4] Hashing audit record... SHA-256 chained
Result: ELIGIBLE
Basis: 7 CFR 273.9(a)(1)
Variance: 0.0% | Hash: a3f8...c2d1
$
DOCUMENTED FAILURES

AI lawsuits up 808% ↑ Real costs. Real consequences.

From $110K court sanctions to $250M fraud schemes — we documented every case so you don’t become the next one.

Legal2025
ByoPlanet v. Johansson
$85,841
Government2025
Minnesota: Feeding Our Future ($250M+)
$250M+ Stolen (79 Charged)
Healthcare2025
Character.AI Teen Suicide Lawsuits
Settled (Undisclosed)
HOW IT WORKS

We don’t guess. We compute.

Most AI tools generate probable answers. ZH-1 looks up the actual rules and computes the actual answer. Same question, same rules, same result — every single time.

Same input. Same answer. Every time.
Our engine evaluates real regulatory rules — not probabilities. There’s no language model guessing at your answer. Ask the same question twice, get the same result twice. That’s what makes it safe to rely on.
0.0% variance
Every decision has a receipt.
Each result is logged, timestamped, and cryptographically chained to the one before it. If anyone changes a historical record, the chain breaks. You get a tamper-proof paper trail for every check you run.
SHA-256 chained
Your auditor can verify it themselves.
Every decision shows exactly which rules were applied and why. No black boxes, no “the AI said so.” Hand the report to your auditor, your professor, or your regulator — they can independently confirm the result.
Full audit trail
TRY IT NOW

See the difference for yourself.

Ask any question about the One Big Beautiful Bill Act — ZH Standard reads the enrolled text verbatim while Claude, ChatGPT, and Gemini rely on training data summaries.

One Big Beautiful Bill Act(HR 1, 119th Congress, enrolled)

An ~870-page reconciliation bill signed July 2025 with 180+ numbered sections. LLMs trained on summaries fluently invent dollar thresholds and cross-references. ZH Standard reads each section verbatim — every citation is clickable to verify against the official congress.gov text.

HR 1 · 119th Congress · EnrolledVerbatim corpus retrieval§-cited sectionsZH Protocol verification

Ask your own

Type a question — all four systems answer side-by-side, live.

Asks against all sections of HR 1 (the 'One Big Beautiful Bill Act' enrolled by the 119th Congress). Click any §-citation chip (e.g. [§70303]) to read the section verbatim and verify against congress.gov.

Each system answers independently — panels render the moment that system finishes.
ACCURACY SCOREBOARD

compliance tests. Live results.

ZH-1 is a deterministic engine — it computes answers from rules. The models below generate answers probabilistically. This demonstrates why deterministic verification exists.

ZH-1 is a rule-based engine, not a language model. Its accuracy reflects currently encoded rulesets and does not guarantee regulatory completeness. AI model scores reflect their responses to the same compliance scenarios. Results update as rulesets are expanded.

ZH-1
0.0000%
Hallucinations0
Variance0%
Speed47ms
Claude Opus 4.6
0.0%
Hallucinations158
Variance34.2%
Speed2340ms
EST.
GPT-5.1
0.0%
Hallucinations173
Variance35.6%
Speed2580ms
EST.
GPT-4o
0.0%
Hallucinations192
Variance37.2%
Speed1890ms
Gemini 3 Pro
0.0%
Hallucinations204
Variance38.9%
Speed2780ms
EST.
DeepSeek R1
0.0%
Hallucinations218
Variance39.8%
Speed3340ms
EST.
Grok 4
0.0%
Hallucinations227
Variance40.5%
Speed2910ms
EST.
Gemini 2.0 Flash
0.0%
Hallucinations238
Variance42.1%
Speed1240ms
Llama Maverick
0.0%
Hallucinations255
Variance41.7%
Speed3120ms
EST.
OpenAI o3
0.0%
Hallucinations268
Variance43.6%
Speed4280ms
EST.
Grok 3
0.0%
Hallucinations309
Variance46.2%
Speed2670ms
EST.
OpenAI o4-mini
0.0%
Hallucinations351
Variance48.9%
Speed1560ms

Results from deterministic testing of compliance scenarios. Cards marked EST. show scores derived from published benchmarks; all others reflect live testing against the ZH engine. See Terms of Service.

ZH-M FRONTIERMATH BENCHMARK

AI alone scores ~2%. With ZH-M: 70%.

ZH-M is a deterministic verification layer for mathematics. It amplifies frontier AI models on the FrontierMath benchmark — problems that took professional mathematicians hours to solve — pushing convergence from ~2% to 70%+ with zero hallucinations.

~2% → 70%
Convergence lift
0.0%
Hallucination rate
$0.05 – $15.22
Cost per run

Convergence by Model (37 FrontierMath problems)

CSonnet 4.60.0%
COpus 4.60.0%
XGrok 4.10.0%
GGemini 3 Pro0.0%
LlMaverick 40.0%
AI alone (FrontierMath baseline: ~2%)

Full Results

CSonnet 4.670.3%
Converged26/37
1st Attempt26
Avg Iterations1.0
Tokens115K
Cost$1.73
Hallucination0.0%
Runtime~37 min
COpus 4.670.3%
Converged26/37
1st Attempt23
Avg Iterations1.2
Tokens115K
Cost$8.64
Hallucination0.0%
Runtime~28 min
XGrok 4.170.3%
Converged26/37
1st Attempt25
Avg Iterations1.0
Tokens507K
Cost$15.22
Hallucination0.0%
Runtime~118 min
GGemini 3 Pro67.6%
Converged25/37
1st Attempt25
Avg Iterations1.0
Tokens601K
Cost$2.10
Hallucination0.0%
Runtime~22 min
LlMaverick 467.6%
Converged25/37
1st Attempt20
Avg Iterations1.3
Tokens98K
Cost$0.05
Hallucination0.0%
Runtime~25 min

FrontierMath contains problems that took professional mathematicians hours to solve. Frontier AI models score ~2% alone. ZH-M’s deterministic verification loop pushes convergence to 70% with zero hallucinations.

Results from testing 37 FrontierMath problems. “Converged” means the model produced a verified correct answer within the iteration limit.

WHO IT’S FOR

Real answers for the questions that matter most.

Housing Compliance
43
Is this family eligible for Section 8? Should this voucher be renewed? ZH-1 computes HUD eligibility from 43 encoded rules across 5 programs — no guesswork, no judgment calls.
Government Benefits
39
SNAP, Medicaid, SSI, TANF — each with rules that change every year. ZH-1 stays current so applicants get the right answer the first time.
Grant Eligibility
3.1M
Stop guessing whether you qualify. ZH-1 checks your org against 3.1M federal opportunities on SAM.gov and tells you exactly which grants match.
Academic Citations
150M
Did your AI tool fabricate that source? ZH-1 checks every citation against 150M scholarly records in the CrossRef database so you never submit a paper with fake references.
Medical Compliance
Coming
Healthcare cannot afford 'probably correct.' Rule encoding is in progress — not yet available for PHI or HIPAA-regulated workflows.
Custom Rules
Have your own compliance rules? Encode them into our engine and get the same deterministic, auditable results for your domain.
TRUST & SECURITY

Built for regulated industries.

Here’s exactly what we do and don’t do with your data and our architecture.

Data Security
  • No document content stored after processing
  • No training on customer data
  • Encrypted in transit and at rest
  • Architecture designed toward SOC 2 Type II readiness
Audit Architecture
  • SHA-256 report hashing
  • Every decision cites specific rules
  • Report integrity verification
Compliance Ready
  • Deterministic outputs for auditors
  • Full processing integrity evidence
  • Federal rule updates tracked and encoded
  • Patent pending (US utility application filed)
BY THE NUMBERS

Built in public. Verified in production.

Law firms
Government agencies
Grant writers
Election auditors
0
verification runs completed
0
documents corrected before delivery
0
errors, hallucinations & misrepresentations caught

Numbers reflect production verification runs against 15+ AI models, cross-referenced against 3.1M grants, 39M nonprofit officer records, 37M grant disbursements, and 8.2M voter records. All counts are live from our sovereign databases.

PRICING

Coming Soon

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On-premise deployment, custom rulesets, API access, unlimited checks.
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FAQ

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