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These posts are written by the Deni AI team from the work of running a public multi-model chat product. They are meant to be useful even if you never create an account.
If you want evergreen methods instead of dated notes, the AI Guides cover model selection, verification, prompt patterns, and privacy. This blog is for the decisions we keep seeing in real work.
Deni AI is a product, but a product page is not enough when someone is deciding which model to trust, whether to paste a document, or how to review generated code.
We publish these articles so visitors can inspect our methods before they sign in. The writing is original, dated, and written for people who already use AI, not only for people who want a new account.
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Read articleDeni AI experienced downtime from 13:18 to 22:30 (JST) on August 18, 2026. Here are the details.
Read articleA practical comparison of ChatGPT, Claude, and Gemini based on task failure modes, not brand loyalty.
Read articleA two-pass workflow for English and Japanese drafts that keeps meaning, tone, and audience fit under human control.
Read articleThe fastest AI workflow is sometimes no AI. A decision guide for tasks where a model adds risk, rework, or false confidence.
Read articleA capture-and-synthesis method that turns scattered notes into owners, dates, and open questions you can actually use.
Read articleThe workplace versions of hallucination are quieter than invented facts: fake citations, plausible APIs, and flattened disagreement.
Read articleA review checklist for AI patches: file boundaries, tests, invented APIs, and the moment you should throw the draft away.
Read articleChat history becomes landfill unless you treat threads as tasks. A simple system for titles, handoffs, and starting over.
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