AI Handbook
AI tools, explained by doing
Every page here answers one question: how do I actually do this. No release notes, no hot takes — the tool, the steps, the command, and what it costs.
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Opus 5.5 Is Not 40% Cheaper Everywhere. Here Is Where the Number Holds.
Anthropic's headline for Claude Opus 5.5 is simple: 40% cheaper, 30% faster than Opus 5. Those two numbers are doing most of the work in every comparison article published since September.
Concat Video Editor
Concat is a free, open-source video editor positioned as a direct CapCut replacement. It runs on Windows, macOS, Linux, Android, and iOS, ships under AGPL-3.0 (per its repository), and imposes no watermarks, no export limits, and no paywall.
- tool
- open-source
Tarko AI
Search for "Tarko AI" and you will land on three unrelated products. There is a developer framework for building agents, a study app for students, and an industrial machine vision system.
- tool
- commercial
SolidCraft Launches
SolidCraft is an open-source parametric 3D CAD application written in Rust, positioned as a free alternative to commercial tools like Autodesk Fusion.
- model-release
- open-source
Sticker Banners Are Everywhere on TikTok
Sticker banners are having a moment. Search interest climbed roughly eightfold over the past thirty days, driven almost entirely by TikTok, where creators are building decorative banners out of layered stickers and filming the process.
- trend
- diy
DeepSeek V4.1-Flash
DeepSeek V4.1-Flash is a multimodal mixture-of-experts model released September 10, 2026, with a 552B backbone. It is the first model built on DeepSeek's Causal Encoder-Decoder architecture, supports context up to 1M tokens, and processes images and text natively.
- model
- open-source
MOSS-Image in ComfyUI
MOSS-Image is a 5-billion-parameter text-to-image model from OpenMOSS, released on October 16, 2026, under Apache 2.0.
- model
- image
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Frequently asked questions
Is everything on the site free?
Yes. Every entry, tutorial and update is readable without an account, and there is no metered paywall or cookie wall. A membership is planned for the longer research pieces, but the reference pages stay open.
How often are pages updated?
Entries are re-checked roughly once a quarter and immediately when a product changes its pricing or drops a free tier. When that happens the page is corrected and the date at the top moves; the URL never changes.
Do you take payment for reviews or rankings?
No. No company has reviewed a draft about itself, and no payment changes what appears here or where it appears. Where an outbound link is an affiliate link, it is labelled as one next to the button.
Are the numbers on the page measured or quoted?
Measured numbers are labelled as ours and carry the hardware or connection they were taken on. Anything from a vendor benchmark or a third-party report is marked as reported in the sentence itself, not in a footnote.
Do you cover every new AI tool?
No. A page exists when there is something useful to add: a working install path, a measured limit, or a clear answer to what it replaces. Tools we have not used do not get a page just because they launched.