Your fleet has a documentation blind spot.
We close it.
Cited answers. Verified citations. Transparent confidence.
Onboard every vessel, offline.
A safety-critical reasoning system for maritime. Crew get a complete procedure, a source tier, and a confidence score on every answer. Everything runs onboard. No internet required.
Before entering an enclosed space, the following steps must be completed in order:
- 1.Complete a formal risk assessment using Form OFS-RA-003
- 2.Obtain an Enclosed Space Entry Permit from the Master
- 3.Ventilate the space mechanically for a minimum of 24 hours
- 4.Test atmosphere — O₂ 20.0–21.0%, H₂S below 5 ppm, CO below 25 ppm, LEL below 1%
- 5.Station a trained standby person at the entrance
- 6.Establish and test two-way communication before entry
- 7.Position rescue equipment at the entrance
- 8.All entrants must wear personal gas detector and rescue harness
The problem with maritime documentation
$35,000
per day in PSC detention costs
40%
of PSC findings relate to crew knowledge
#1 finding
after incidents: procedure not followed
97%
of generic AI tools hallucinate a citation under pressure. Ours don't — every citation is verified against the retrieved source before it reaches the crew.
“The procedure existed, but was not followed.”
The maritime industry's most common finding after serious incidents
Four steps to operational safety intelligence
Upload
Upload your SMS manuals, procedures, and regulatory references. We parse, chunk, and build an AI knowledge index — preserving tables, numbered procedures, and cross-references.
Deploy
Download a 5GB bundle to each vessel. Runs on any mini-PC. Zero internet required. Crew access it through a browser on any device connected to the vessel network.
Trust
Every answer shows its source tier (SMS, vessel, regulation, reference), a High / Medium / Low confidence badge, and whether each citation is verified against what was actually retrieved. Crew see at a glance whether to act or verify.
Learn
See what your crews are asking. Find documentation gaps. Identify procedure hotspots and confusion signals. Fix them before the next audit.
Upload
Upload your SMS manuals, procedures, and regulatory references. We parse, chunk, and build an AI knowledge index — preserving tables, numbered procedures, and cross-references.
Deploy
Download a 5GB bundle to each vessel. Runs on any mini-PC. Zero internet required. Crew access it through a browser on any device connected to the vessel network.
Trust
Every answer shows its source tier (SMS, vessel, regulation, reference), a High / Medium / Low confidence badge, and whether each citation is verified against what was actually retrieved. Crew see at a glance whether to act or verify.
Learn
See what your crews are asking. Find documentation gaps. Identify procedure hotspots and confusion signals. Fix them before the next audit.
Same question. Three very different answers.
A crew member asks for the man-overboard procedure — a mandatory, safety-critical answer. Here is what each category of system actually returns.
Question
What do I do in a man overboard situation?
Answer
In a man-overboard situation, stop the vessel, throw a flotation device, and alert the coast guard.
Question
What do I do in a man overboard situation?
Answer
Follow your vessel's MOB procedure and notify the Master immediately. Assemble at muster stations per the Muster List.
Source: Safety Manual
Question
What do I do in a man overboard situation?
Answer
- 1Mark position (Williamson turn)[1]
- 2Throw lifebuoy with light / smoke[1]
- 3Post lookouts[1]
- 4Sound general alarm[1]
- 5MAYDAY / PAN-PAN on VHF 16[1]
- 6Launch rescue boat[1]
- 7Notify Coast Guard and nearby vessels[1]
- 8Continue search until located or suspended[1]
- 9Headcount and muster[1]
Real output from a real vessel's Safety Management System, running fully offline on a ship.
Under the hood
A reasoning stack, not a search box
Most “AI search” products bolt a language model onto a vector database and call it done. We do five more things that matter for safety-critical retrieval.
Hybrid retrieval
BM25 keyword search + BGE-M3 dense vectors + bge-reranker-v2-m3 cross-encoder. Two-stage ranking means a query for “generator 2 oil pressure” finds the exact spec table even when the crew uses different words than the manual.
Authority hierarchy
Your SMS outranks generic regulation by design. Vessel-specific procedures beat fleet-type, which beat regulation, which beats reference. Every source carries its tier pill so crew see where the answer is coming from.
Self-correction
When the first retrieval pass is weak, the system rewrites the query into maritime vocabulary and tries again — Corrective RAG. The UI tells the crew when this happened, so they know we had to work hard to find the answer.
Parent–child expansion
When a retrieved chunk is one step of a longer procedure, the parent section is pulled in automatically. A 9-step man-overboard procedure never gets truncated because we only matched step 3 of it.
Sufficient-context autorater
A second model call checks whether the retrieved context is enough to answer before the response is shown. Based on Google ICLR 2025 research, applied to maritime. Insufficient context triggers a transparent refusal instead of a confident guess.
Measured, not promised
By the numbers
Real results from the stress-test suite we run on every build. No benchmarks on curated data — these are adversarial maritime questions the system has to get right the first time.
3,717
chunks in a typical bundle
Across 4 authority tiers: SMS, vessel, regulations, reference.
89%
pass rate on stress-test corpus
35-case maritime Q&A covering multi-hop, cross-document, refusal, adversarial.
0
unverified citations
On 33 of 35 stress-test answers. The 2 flagged cases showed a warning to the crew, not a confident answer.
<25 s
average answer latency
On complex multi-hop questions. Running fully offline on ship-class hardware.
Category comparison
Why Full Fathom vs. general AI assistants
The maritime safety stakes are different. The requirements on the AI have to be different too.
| Generic chatbot | Enterprise RAG | Full Fathom AI | |
|---|---|---|---|
| Cites sources | No | Document-level | Chunk-level with page numbers |
| Verifies citations | — | — | Yes — flags unverified |
| Shows confidence | — | — | High / Medium / Low with reasoning |
| Shows source tier | — | — | Vessel / SMS / Regulation / Reference |
| Safety-critical completeness | Summarises | Summarises | Full mandatory procedure enforced |
| Refuses when uncertain | — | Sometimes | Always, with transparent rationale |
| Runs offline | No | Varies | Fully offline by design |
| Ingests your procedures | No | Yes | Yes |
| Maritime-aware ranking | No | No | Yes — SMS outranks regulation |
For Crew Onboard
Crew Q&A interface
- Simple interface — no training required
- Ask questions in plain English
- Every answer cites the source document, section, and page
- Works fully offline on the vessel network
- Accessible from any browser — desktop, tablet, or phone
For Fleet Managers
Fleet analytics dashboard
- Query intelligence — see what crews are asking across your fleet
- Documentation gaps — questions the system cannot answer reveal missing procedures
- Procedure hotspots — which manual sections are referenced most, and which are never touched
- Confusion signals — similar questions in different phrasing across vessels means unclear procedures
- Filterable by vessel, vessel type, and time period
Built for safety-critical operations
Fully Offline
All inference happens onboard. No cloud processing of queries.
No Crew PII
Query logs contain no personal data. Zero crew identification.
Verified Citations
Every citation is checked against what was actually retrieved. Invented or mismatched citations are flagged with a warning — not shown as facts.
Confidence Transparency
Every answer shows High, Medium, or Low confidence with a tooltip explaining why. Crew know when to trust and when to verify.
Authority Hierarchy
Your SMS procedures outrank generic regulation by design. Vessel > SMS > Fleet > Regulation > Reference, with every source tagged.
Safety-Complete Procedures
Man overboard, fire, enclosed space: we return every mandatory step, not a summary. Completeness enforced by design, not hoped for.
ISM Aligned
Supports ISM Code compliance evidence across Sections 6, 7, and 12.
Tamper-Evident Bundles
SHA-256 checksums on every bundle. The runtime refuses to load a file that has been altered in transit.
Your Data, Isolated
Full multi-tenant data separation. No cross-tenant access.
Hardware requirements
Runs on hardware most vessels already have. No GPU required.
| Minimum | Recommended | |
|---|---|---|
| CPU | x86_64, 4 cores | x86_64, 8 cores |
| RAM | 16 GB | 32 GB |
| Storage | 100 GB SSD | 256 GB SSD |
| GPU | Not required | Not required |
| Network | Vessel LAN | Vessel LAN |
Simple per-vessel pricing
No setup fees. No per-query charges. Free 2-month pilot available.
Starter
- Up to 50 documents per vessel
- Single vessel
- Standard document processing
- On-vessel AI runtime
- Cited answers with source references
- Email support
Professional
- Unlimited documents
- Multi-vessel fleet
- Fleet analytics dashboard
- Priority document processing
- Quality report per bundle
- Cited answers with source references
- Priority support
Enterprise
- Everything in Professional
- Custom integrations
- Dedicated account manager
- API access
- Custom model tuning
- SLA guarantees
Save 20% with annual billing
Request a Demo“Documentation exists to keep people safe.
Full Fathom AI makes sure it actually does.”