Experiment
AI-Assisted Document Workflows
Experiments in using large language model APIs to extract, structure and summarise information from unstructured documents — invoices, statements, correspondence.
- Claude API
- Next.js
Technology · Systems · Business
Gehna
Stavonin-de Montagnac
Technology, systems, business and the ideas shaping what comes next.
I write about artificial intelligence, software, automation, finance and emerging technology, and the systems changing how we work.
Latest Thinking
Recent writing
Analysis and observation across AI, software and business — separating fact from opinion, and opinion from prediction.
[ AI ]
ChatGPT vs Claude vs Gemini vs Grok: How the Major AI Platforms Differ
The major assistants are converging on capability and diverging on judgement, interface and who they're really built for. A practical comparison rather than a leaderboard.
2 June 20268 min read
[ AI ]
Are Open-Weight Models the Future of AI?
Open-weight releases from Meta, Mistral, DeepSeek and others have closed the gap with closed frontier labs faster than expected. What that does — and doesn't — mean.
18 May 20267 min read
[ Business ]
The Future of Accounting in an AI-Assisted World
AI won't replace accountants. It will remove the parts of the job that were never really accounting in the first place — and raise the bar on the parts that are.
27 April 20267 min read
Areas of Interest
What this site is about
Artificial Intelligence
Models, agents, and where genuine capability ends and hype begins.
Software & Automation
How systems get built, and how much of that building is changing.
Business & Finance
The mechanics of running a business, and the numbers underneath it.
Emerging Technology
Local AI, open-weight models, and tools still finding their shape.
Markets & Trading
How algorithms and information move markets — observed, not advised.
Projects & Experiments
Working things built to learn how something actually works.
Selected Projects
Things I've built
Working experiments, prototypes and tools — built to understand how something actually works, not to sell it.
Experiment
Browser Automation Experiments
A set of automated testing and workflow scripts exploring how far browser automation can go for repetitive, rules-based online tasks.
- Playwright
- TypeScript
Prototype
Mobile AI Image Studio
A lightweight, phone-friendly interface for AI image generation — built to give the same kind of hands-on control as a desktop AI studio, without needing a desktop.
- Next.js
- Image Generation APIs
Prototype
Streamlined Bookkeeping Platform
A lightweight, purpose-built alternative to general-purpose accounting software, designed around a specific type of small business rather than trying to serve everyone.
- Next.js
- Supabase
- TypeScript