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Horizon-Write

Write with reasons.

Bring your proprietary sources, rules and definitions into the act of writing. Build an argument whose claims and assumptions you can inspect.

AI enabled · Supported by your background knowledge

Explore 6 distinctive features

Coming soon, watch this space.

Coming soon, watch this space.

From a sentence to its reasoningIllustrative rule check
A fictional investment policy

Recommendation

The project has completed its review.

Our recommendation follows the evidence and the conditions set out in the policy.

Select the highlighted claim to inspect its reasoning.
Holds only if…

Follow the logic.

Claim

The project is eligible for approval.

Selected rule

A project is eligible for approval if and only if its review is complete and its budget is confirmed.

Case facts

Review complete ✓

A missing condition matters. Confirm the budget to see how the finding changes.

Demonstration of a simple rule, not an AI check or legal advice.

Practical Wisdom, in practice

What makes Horizon-Write different.

Feature 1 of 6

Check what a sentence claims

Go beyond grammar to the reasoning underneath.

Check sentences against the knowledge switched on for the document. Findings distinguish contradictions, unsupported claims, vocabulary issues, missing definitions and claims that hold only under unstated conditions.

The AI’s response is checked by code: a non-existent rule, an unavailable source passage or an unresolved condition cannot simply become a conflict finding. The check supports review; it is not a formal proof of a document’s legal correctness.

In practice

A sentence asserts an entitlement. The finding points to the rule and the condition the sentence has not established.

Inside Horizon-WriteActual app screenshot
Knowledge panel · built-in review exercise with deliberate errors, not legal adviceView full size ↗
Knowledge panel · built-in review exercise with deliberate errors, not legal advice

Feature 2 of 6

Choose the knowledge your document relies on

Your context is part of the workspace.

Bring knowledge packs, source material, case information, a vocabulary and accepted definitions into the document. Switch knowledge items on or off to decide what the check should use.

This makes it possible to work with a specific body of knowledge rather than an undifferentiated collection of information. Definitions proposed by AI require acceptance before the check uses them.

In practice

Use your organisation’s definitions alongside a selected knowledge pack and the facts of the client’s case.

Inside Horizon-WriteActual app screenshot
Writing workspace · built-in review exercise with deliberate errors, not legal adviceView full size ↗
Writing workspace · built-in review exercise with deliberate errors, not legal advice

Feature 3 of 6

Catch certain contradictions while you type

Some checks should not need a model call.

Local checks flag inconsistent figures for the same measured thing, arithmetic statements that do not match their numbers, and date-order problems in dated lists. Vocabulary checks can detect values outside the allowed set.

These checks operate on recognised patterns and do not cover every possible inconsistency. Opinions and forecasts are treated differently from factual claims, so the document is not flattened into a list of assertions.

In practice

“Growth from 40 to 52 was 25%” conflicts with its own arithmetic: the increase is 30%.

Inside Horizon-WriteActual app screenshot
Knowledge panel · built-in review exercise with deliberate errors, not legal adviceView full size ↗
Knowledge panel · built-in review exercise with deliberate errors, not legal advice

Feature 4 of 6

See the architecture of the argument

Find the gap before polishing another paragraph.

Map the core message, arguments, evidence, examples, objections and conclusions. Link ideas to the paragraphs that express them, and record relationships such as supports, contradicts or needs first.

Moving between the page and the map preserves the document. The map gives you another way to inspect the argument, including ideas that have not yet been expressed in a paragraph.

In practice

See that a recommendation has two supporting arguments but no paragraph answering the strongest objection.

Inside Horizon-WriteActual app screenshot
Writing workspace · built-in review exercise with deliberate errors, not legal adviceView full size ↗
Writing workspace · built-in review exercise with deliberate errors, not legal advice

Feature 5 of 6

Revisit how a paragraph became what it is

Keep the reasoning history close to the words.

Paragraph history shows earlier wordings drawn from saved versions, with differences highlighted. Restore one paragraph without rolling back the whole document.

The history view places previous wordings in depth, with a flat alternative for reduced motion. Restoring a wording makes a safety point and can be undone, so comparing alternatives does not require losing the current text.

In practice

Recover a carefully qualified formulation while keeping the newer evidence and structure in the rest of the document.

Inside Horizon-WriteActual app screenshot
Knowledge panel · built-in review exercise with deliberate errors, not legal adviceView full size ↗
Knowledge panel · built-in review exercise with deliberate errors, not legal advice

Feature 6 of 6

Take the argument beyond the page

Share the words together with their structure.

Present turns the document into a journey through its sections and paragraphs. Bring in illustrations and Calc animations, inspect the big picture or use a flat reading view.

Export an offline presentation, a findings report or citations. Word export can carry findings as comments, giving a reviewer access to the issues that deserve attention alongside the prose.

In practice

Present a technical opinion as a guided argument, then send the Word document with review findings attached.

Inside Horizon-WriteActual app screenshot
Writing workspace · built-in review exercise with deliberate errors, not legal adviceView full size ↗
Writing workspace · built-in review exercise with deliberate errors, not legal advice

Where your knowledge meets your judgement.

Broaden your Horizon.

Explore how Horizon-Write can bring your proprietary knowledge into productive work.

Coming soon, watch this space.

AI and connected services may require your own provider accounts and separate usage charges. Feature availability depends on the product and build.