Work you can check.
Private models trained on your own work, interpretability tests with every number published, and a compiler for the records your AI assistants edit.
First workbook free. Model pilots are proved side by side against how you work today.
Listed in the Claude Connectors Directory · MCP Registry · mcp.so, verified
Which are you?
For companies with their own data
Train a model on your own work.
- A pilot on one repeated check, in 10 working days.
- Trained under your NDA; your data is used only for your model.
- Runs on a server in your building or on the chip in your device.
- Proved side by side against how you do it today, then one fixed monthly fee.
For small businesses and teams
Let Claude or ChatGPT keep your records right.
- Your spreadsheets and documents stay in Google Drive or Dropbox.
- Every edit is checked against the file's schema before it is saved.
- Every version is kept; an edit made on an old version is refused, never merged.
- Set up in the AI app you already use. The first workbook is free.
01 · Custom model training
A model trained on your own past work.
Most repeated work does not need a frontier model. It needs a small one that has seen your parts, your documents or your requests, and runs where your data already is.
In your building
Checks done by eye or by hand on data that cannot go into public AI tools: solder joints, polished optics, printed cartons, quotes from RFQ drawings. The model runs on a GPU server at your site.
On your device
A small model on the chip you already ship, for robots, drones, wearables and lab equipment, so the decision is made on the device and does not wait on a weak signal.
Off per-call pricing
AI features you resell as credits because each call costs a different amount. The same work on a model you own, for one fixed monthly price.
How a pilot works
- Pilot
- One repeated check or call, trained on a sample of your past images, documents or logs under NDA, in 10 working days.
- How it runs
- A small model handles the easy cases, a model trained on your data handles the rest, and only unclear cases go to your staff.
- Proof
- A side-by-side accuracy and speed report against how you do it today.
- Upkeep
- We retrain the model as your parts, defects, documents and requests change.
- Pricing
- A fixed pilot fee, then one fixed monthly fee per model. Quoted after we see a sample.
What happens to your data
- Under your NDA
- You share a sample of past images, documents or logs under your NDA before any training starts.
- Used only for you
- Your data trains your model and nothing else.
- Runs where it has to
- The finished model runs on a server in your building or on your device, so the work it checks does not leave.
Tell us the check you repeat and roughly how many a week.
Is this you? Read more about a pilotBuilding robots? Read about robot learning02 · Interpretability experiments
Why a model behaves as it does, measured inside it.
Interpretability explains a model's behaviour from its internals: which neurons and features respond to an input, and how the output changes as the input, the prompt or the environment changes. We test published claims on open-weight models with causal methods (ablation, activation steering, probes and weight edits), each against a control, and publish every number, including the claims that failed. You can rerun each one. The same tests check the models we train for you.
59 of 100
Does one neuron catch reward hacking?
The neuron posted as a reward-hacking detector in Qwen3.5-4B tells a hack from an honest answer in 59 pairs of 100. Another neuron, found with a held-out search, does it in 99.
Run it yourself →9.2% vs 8.6%
Does emergent misalignment run through one neuron?
Switching off the neuron that makes the model hostile leaves 9.2% of answers misaligned. A random control neuron gives 8.6%. The claim does not hold.
Run it yourself →91 of 100
Can a monitor reading the thinking catch a pushed neuron?
A Qwen3.5-9B monitor reading Nanbeige4.3-33B's chain of thought catches a full personality push in 91 pairs of 100, and a half push in 65.
Run it yourself →22 vs 7
Does a weight edit stop a model looping?
On prompts with no math, 22 of 32 answers from the released Qwen3.5-0.8B ran to the 8,192-token limit. The edited copy did it 7 times.
Run it yourself →03 · MCP for knowledge work
A compiler for knowledge work.
Your spreadsheets and documents stay in your Google Drive or Dropbox; the file is the record. Every AI assistant, and every run it starts, reads and edits that file through one layer, the workbook. Its schema declares each table's columns, types, required cells, keys and references, so the tooling that keeps code correct now keeps your operating records correct.
- Accurate
- Every edit is checked against the schema before it is saved. A change an assistant proposes is checked on a copy first and redone with the errors, so you are only asked to approve one that passes.
- Resilient
- Every version is kept and can be restored. An edit based on an old version, or over a file someone changed in Excel meanwhile, is rejected, never merged over.
- Fast and cheap
- An assistant reads and edits one table or section by its address, not the whole file, so a change costs only what it touches.
Works inside Claude, ChatGPT, Codex and Cursor.
Listed in
A short answer from your workbooks and programs, with the source it rests on. Nothing to wait for.
Is Moderna a biotech with a public float above $5B?
Your agent
ask · Is Moderna NASDAQ:MRNA a biotech company with public float above $5B?
{
"answer": "yes",
"claims": [{ "figure": "public float", "value": "$9.6B",
"as_of": "2026-06-28" }],
"sources": ["MRNA 10-K, cover page",
"biotech-diligence-7fq2 · §Moderna"]
}Yes. Moderna's public float was $9.6B as of June 28, per the cover of its 10-K.
Few example workbooks
VK2735 competitive landscape: the 8 closest obesity programs
Tirzepatide, CagriSema, retatrutide, orforglipron and four more against Viking's VK2735: phase, latest weight-loss readout, next catalyst and deals, every row cited.
29 sources · 25 minutes
Read the workbook →US importers of bulk black tea from India, from customs records
Four US buyers with the bills of lading that show it, who they buy from, what gates a new supplier, and the leads not worth chasing yet.
10 sources · 8 minutes
Read the workbook →Early-stage AI startups that filed a Form D in the last 30 days
Seven US AI companies raising in September 2026: the instrument each filing names, amount sold, investors and the people on it, each cited to the Form D on EDGAR.
17 sources · 13 minutes
Read the workbook →Tested on real work. Every score published.
Who imports it? Four workbooks that keep the answer, from US customs records
Marin Mountain Bikes filed more bicycle shipments than Giant or Trek; 572 companies imported black tea.
| Measure | US customs records |
|---|---|
| Most bicycle shipments | Marin Mountain Bikes, 5,711 |
| US black tea importers, 2026 | 572 |
Ten MCP registries and the use they can see: installs, pulls, connections and views
Cline and Docker count installs; the big directories count stars, their own page views, or nothing.
| Measure | Cline | Docker | Official registry |
|---|---|---|---|
| Servers listed | 199 | 316 | 62,550 |
| Counts per server | Installs, 1.47M in all | Pulls, Playwright 2.77M | Nothing |
Who earns on Stripe and who earns on x402: verified startup revenue against agent payments
81 of TrustMRR's top 100 are paid through Stripe, for $10.13M a month; all of x402 moved $1.77M in 30 days.
| Measure | Stripe (TrustMRR top 100) | x402 (all sellers) |
|---|---|---|
| Last 30 days | $12.89M from 81 startups | $1.77M from 14,073 sellers |
| Sellers with ten or more buyers | — | 44, for $0.84M |
How to train a private AI model on your own data and run it on-premise
Seven steps, from picking one check to running it in your building, and what a per-call API costs instead.
| Measure | 1,000 a day | 10,000 a day |
|---|---|---|
| Claude Haiku 5.5 API, a month | $10.50 | $105 |
| Claude Sonnet 5.5 API, a month | $210 | $2,100 |
Where does a business break when two things happen at once?
Six small businesses as TLA+ models. In each, the obvious fix still breaks and a second one holds.
| Measure | As written | Fixed |
|---|---|---|
| Restaurant, reward an episode | 22.99 | 37.83 |
| Coffee shop, reward an episode | -0.81 | 6.00 |
One YouTube link, read nine ways: from the key shots to the transcript, each priced
A video's look for under a cent, its transcript for two, all nine aspects in one call for $0.024.
| Measure | 2-min video | 15-min video |
|---|---|---|
| The look (visuals) | $0.0097 | $0.054 |
| Transcript | $0.018 | $0.14 with every other aspect |
Questions, answered.
What does hedwigai do?
We train private AI models on a company's own past work, test how models behave from the inside, and run an MCP server through which Claude, ChatGPT, Codex and Cursor edit the spreadsheets and documents in your Google Drive or Dropbox, with every edit checked against the file's schema before it is saved.
What happens to my data in a model pilot?
You share a sample of past images, documents or logs under your NDA, and it is used only for your model. The finished model can run on a GPU server in your building or on the chip in your device, so the data it works on does not have to leave.
How long does a pilot take, and what does it cost?
Ten working days for one repeated check or call. It ends with a side-by-side accuracy and speed report against how you do it today. Pricing is a fixed pilot fee, then one fixed monthly fee per model, quoted after we see a sample.
Where do my files live if I connect the MCP?
In your Google Drive or Dropbox, at the same path. The file is the record: a run reads the latest version first and writes each new version back to it. If someone changed the file in the meantime, the edit is refused rather than written over theirs, and every version can be restored.
Which AI apps does it work with?
Claude, where it is listed in the Connectors Directory; ChatGPT, where the plugin is in review; and Claude Code, Codex, Cursor, Hermes or any other app that adds an MCP server. It is also listed in the MCP Registry, on Glama and on mcp.so.
What does the MCP cost?
The first workbook is free. Reading, searching and writing a workbook is free; research runs are billed to the account by what they use.