SMF·WORDTUNE
Can a prompt replace Wordtune?
AI writing — grammar, editing and long-form writing
Exhibit tracking slip
Verdict
The whole product is one interaction: highlight a sentence, request variations along a couple of axes, choose. With a model behind it that is a single sitting, and the result is genuinely good, because rewriting one sentence is exactly the task language models are strongest at. What you do not get is that Wordtune appears wherever you already type — in Gmail, in a document, in the browser — and a standalone editor is a place you have to remember to go.
Exhibit A — The prompt
Received on31.07.2026Build a local sentence-rewriting tool. One interaction, done well.
Editor: a plain text pane holding a document, with sentence boundaries detected by a proper splitter that handles abbreviations, initials and quoted dialogue. Clicking anywhere selects the sentence; dragging selects a passage.
Rewrite request: on selection, request several variations in a single model call and display them as a list. Ask for exactly these axes, and make them independent controls rather than presets:
- Tone: neutral, formal, casual
- Length: shorter, same, expanded
Build the prompt so one call returns all requested variants as a structured list, not several sequential calls — the latency of one round trip is what makes this feel usable.
Display: every variation rendered as a word-level diff against the original, with insertions and deletions marked. Reading a diff is faster than re-reading a sentence, and it is what stops you accepting a rewrite that quietly dropped a qualifier. Clicking a variation replaces the selection; Escape dismisses.
Context: send the sentence before and after the selection along with the selected text, marked as context that must not be rewritten. Without that, rewrites break pronoun references and repeat the previous sentence's opening word.
Consistency controls: a per-document list of terms that must never be changed (product names, technical terms, quoted material), passed to the model as a hard constraint and additionally enforced by checking the returned variants and discarding any that altered a protected term.
History: every rewrite accepted is recorded with the original, so a document's full change history can be reviewed and any single change reverted.
Use Anthropic or OpenAI, whichever key is present. With no key, the editor, diff view and history must still function — only the rewrite request is unavailable, and say why.
Out of scope: a browser extension, word-processor add-ins, grammar checking, a summariser, and any hosted service or account.Opening prefills the prompt — press enter to run it.
Exhibit B — What you lose
- B.1 the browser extension and the word-processor add-ins
- B.2 rewriting in place, inside the tool you were already writing in
- B.3 sync of your saved preferences between machines
- B.4 a model tuned specifically for paraphrase rather than a general one
Exhibit C — Why people still pay: polish, integrations, and proprietary language models
Because the value is in the placement, not the rewriting. A tool that lives in the text box you are already in gets used twenty times a day; one you have to open gets used twice.
Questions
Is there anything to migrate from Wordtune?
No. Wordtune holds no documents of yours — it rewrites text in place wherever you are typing. There is nothing to export, which makes this the cleanest switch in the category and also explains what you are giving up.
How does the output compare to Wordtune's?
For tone and length changes, comparable, and often better with a large general model. Where Wordtune is stronger is consistency: it was tuned for paraphrase specifically, so it rarely drifts from the original meaning, whereas a general model occasionally rewrites the point along with the words. The diff view exists to catch exactly that.
What does it cost to run?
Each rewrite sends a sentence plus a little context and returns half a dozen short variants, which is well under a cent. Rewriting an entire long article sentence by sentence costs a few cents.
What is the one thing that does not survive the rebuild?
Being in the box you are already typing in. Wordtune's extension turns rewriting into a reflex; a separate application turns it into a decision, and most of the time you will not bother.
Related tools
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