Mariya Valui

Mariya Valui · Technology Entrepreneur

AI Journal.

How I think about AI systems: the research I read, the product decisions I make and the work behind them.

Illustrative customer revenue comparison

Analysis · 6 min read

The AI chart looked convincing. The customer group had changed.

A worked revenue example shows how changing the customer group creates a false trend—and what I required the AI report to fix.

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The same AI answer examined by two evaluators using different criteria.

Research · 5 min read

Paper · 4 Oct 2026

When AI scores mislead

A better score can conceal an unchanged mistake. How I would separate agent quality, case mix and evaluator changes before a business decision.

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The current proposal is version 3 at £21,600, but the sent attachment is version 2 at £24,000.

Research · 6 min read

Paper · 24 Aug 2026

Making AI finish the commercial workflow

A revised proposal, an old attachment and the difference between successful tool calls and a useful business outcome.

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Existing customers retain £120 per month under their current agreement; new customers pay £150 from 1 November.

Research · 6 min read

Paper · 19 May 2026 · v2

AI memory for a business that keeps changing

A new price does not replace every old price. Useful memory connects decisions to the customers, periods and work they affect.

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A business brief passes through tools to become a concrete deliverable.

Research · 6 min read

Paper · 14 Apr 2026

Choose the AI workflow your customers can use

Start with a useful revenue report, compare complete systems and count the cost of reaching a result the customer can actually use.

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A source supports a decision that leads to a verified artifact.

Analysis · 6 min read

Give AI a business decision worth solving

A practical brief can create room for parallel AI work. A hypothetical launch shows the opportunity, the coordination cost and when a simpler task needs less.

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