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Tenebra

Know how likely it is. And why.

Tenebra is forecasting software for businesses. It puts a probability on the events that can move your plans, shows the evidence behind every number and checks itself when the answer comes in.

Request early access Private beta. iPhone, iPad, web and Excel.
Tenebra on iPhone: major cloud provider outage of 6+ hours within 180 days, 42 percent, high confidence, with the reasons behind the number

Every number comes with its reasons.

Open any forecast and read the argument behind it: the evidence for and against with the outlets it came from, what anchors the estimate, how uncertain it still is and what would change it.

  • Reporting from outlets in many countries and languages
  • A range around every probability, not just a point
  • What would move the number most
The evidence for and against a forecast, its anchors, and the numbers: odds, daily risk, next seven days, momentum and evidence grade

Every move, explained.

A Tenebra number never jumps without a reason. Each change is dated, sized and tied to the report that caused it, so you can see exactly why today's estimate is not last week's.

Score history chart and a dated list of every move in the probability, each with the report behind it

Hundreds of questions. One glance.

Supply routes, outages, elections, public health, policy. Every question has a deadline, a probability and its trend, refreshed as the news moves. Search, sort and get an alert when something you follow shifts.

The Tenebra index on iPhone: questions with deadlines, probabilities and trend lines

More than an AI's guess.

Ask a chatbot how likely something is and you get a confident sentence with nothing behind it. Tenebra is built the other way around.

Many analysts, one number

Separate specialist analysts read the evidence on their own. A statistical engine, not a chat reply, combines their reads into the probability.

Starts from history

Every estimate begins with how often similar events have happened before, and moves only as far as the evidence justifies.

Argues against itself

A built-in red team looks for reasons the forecast is wrong, and its case is weighed like any other evidence.

Honest about uncertainty

Thin or conflicting evidence widens the range instead of hiding behind a confident number.

Cross-checked reporting

It reads outlets in many countries and languages, and checks stories against each other, so a single headline cannot swing the number.

It keeps score

Forecasts are recorded before the outcome is known and graded after, misses included. Over time you see exactly how far to trust them.

Where your team already works.

Tenebra on iPad: the question list next to a forecast with its probability, reasons and numbers

iPhone and iPad

A native app, with widgets for the Home Screen and Lock Screen.

Web

Every question and every forecast in the browser.

Excel

Live probabilities straight into your own models.

API

The numbers and their reasons, in your own tools.

Tenebra is in private beta.

We are opening it to a small number of teams. Tell us what you would like to forecast.