Write to AI.
Keep what matters.
Short guides to prompts that use fewer tokens without losing meaning. Every example on these pages is run through the same engine as the Typo app, so what you see is what Typo really does.
Start here
What token optimization is, and what our numbers mean.
What is token optimization?
Token optimization means sending an AI only the words it needs. What a token is, what really uses tokens, and how Typo's token language trims filler safely on your computer.
Measurement · 2 min readHow we measure savings
What the numbers on Typo's token pages mean: characters are counted exactly, tokens are an estimate, and provider bills and credits are not measured. How to check real savings yourself.
Measurement · 2 min readToken savings versus AI credits
Characters, estimated tokens, provider tokens and credits are four different numbers. What each one means, why a shorter prompt does not always mean fewer credits, and what Typo shows.
FAQ · 2 min readToken language: questions and answers
Straight answers about Typo's token language: what it does, when it is active, the 10 levels, undo, credits and bills, privacy, Lovable and supported systems.
By AI tool
ChatGPT, Claude, Lovable and the rest: what helps in each.
Prompt optimization for ChatGPT
How to write shorter, clearer ChatGPT prompts: state the task, format and limits, keep repeated context in a Project, and let Typo trim the filler in the ChatGPT app and on chatgpt.com.
Claude · 2 min readPrompt optimization for Claude
Keep Claude prompts focused: trim filler, keep sources and quotes intact, use Projects for recurring context and point Claude Code to exact files. Typo works in the Claude app and on claude.ai.
Lovable · 2 min readPrompt optimization for Lovable
In Lovable, credits follow the work a request causes, not its length. Pick Chat, Plan or Build first, keep scope and acceptance criteria exact, and let Typo trim only the filler.
AI tools · 2 min readOne prompt, different AI tools
Why the same prompt behaves differently in ChatGPT, Claude, Lovable and Gemini, what Typo knows about the tool you use, and which level to pick for each kind of task.
For builders and developers
Prompts that change code or apps need exact details.
Prompt optimization for developers
How developers can shorten prompts to AI coding tools without losing file names, errors, tests or constraints, and where Typo's token language helps and where it stays out on purpose.
Vibe coding · 2 min readPrompt optimization for vibe coders
Building apps by describing them to an AI? How to write prompts that are short where it is safe and exact where it matters: the goal, the screen, the limits and how you will check it.
Engineering · 2 min readPrompt reviews for senior engineers
Treat prompts to coding agents like code: protect scope, interfaces and tests, measure accepted outcomes rather than characters, and know exactly what a local optimizer like Typo checks.
Safety and privacy
What must never change, and what stays on your computer.
Safe prompt rewriting checklist
A practical checklist for shortening AI prompts without changing what they ask for: names, numbers, exact text, negations, conditions and private data. Plus how Typo applies it automatically.
Privacy · 2 min readPrivacy and safety
The token language runs on your computer. Where Typo never acts, what is never changed, how safe mode keeps originals encrypted for 30 days, what the log contains, and how the browser lab handles your text.
Fewer tokens. Same meaning.
Download Typo free. The token language is included and works in your AI tools as you type.
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