Re-tune a passage.
Eight rewrite operations on any selection, from a grammar fix to a full brand-voice pass. You always see a before and after first — nothing touches your article until you click Replace.
Re-tune rewrites one passage of your article without touching the rest of it. Select a sentence or a paragraph, pick what you want done to it, and you get a before/after preview — nothing lands in the article until you say so.
How it works
Select the passage
Highlight a sentence, a paragraph, or a few paragraphs in the body editor. A small formatting bar appears with a Re-tune button.
Pick an operation
The popover opens with eight options. It's draggable — grab the strip at the top and park it wherever it doesn't cover the text you're working on.
Read the before and after
It takes about five seconds. You get your original passage on top (clamped to two lines) and the rewrite underneath, in full.
Replace, insert, or discard
Replace swaps the rewrite in. Insert below keeps both and drops the new version underneath. Try again re-runs the same operation. Discard throws it away.
The eight operations
| Operation | What it does |
|---|---|
| Improve writing | Raises clarity, flow and impact. Tightens wordy phrasing, varies sentence rhythm, strengthens weak verbs. Same detail, roughly the same length. This is the default pick. |
| Re-tune in brand voice | Rewrites the passage so it sounds like your brand wrote it — using your voice fingerprint, your writing samples, and your banned and preferred word lists. Same meaning, similar length. |
| Fix grammar & spelling | Corrections only. Spelling, grammar, punctuation — no rephrasing beyond what a correction strictly needs. |
| Simplify | Plain language a smart thirteen-year-old could follow. Short sentences, everyday words instead of jargon. Every fact survives. |
| Shorten | Cuts to roughly 70% of the original — about a 30% reduction. Redundancy and filler go first; every distinct fact stays. |
| Lengthen | Expands to roughly 140% of the original by deepening the points already there with specifics, examples and consequences. It is instructed not to invent new facts, statistics or names. |
| Change tone | Four presets — Professional, Friendly, Confident, Casual. Same meaning, same facts, similar length. |
| Custom instruction | Type what you want, up to 300 characters. “Cut the hedging.” “Add a concrete example.” “Make this about landlords, not homeowners.” |
The four tones, spelled out:
- Professional — polished, precise and credible. No slang, no filler.
- Friendly — warm and conversational, talking to the reader as you.
- Confident — assertive and direct. Strips out hedging like “might”, “perhaps”, “we think”.
- Casual — relaxed and informal. Contractions welcome, still competent.
The seven presets are shortcuts. The custom instruction is the whole feature. It's the difference between “improve this” and “rewrite this so it speaks to a facilities manager, not a homeowner” — and it costs exactly the same.
The selection rules
- Minimum 30 characters. Select less and the menu opens with every option greyed out and a note telling you to select more. There isn't enough context in a handful of words to rewrite anything usefully.
- Maximum 4,000 characters — roughly 600–700 words, or two or three long paragraphs. Beyond that you're re-writing the article, not re-tuning a passage; use Regenerate on the outline instead.
Re-tune works on the plain text of your selection, so it comes back as a clean drop-in — no stray headings, no “Here is the rewritten passage” preamble.
Nothing changes until you accept it
This is the part worth internalising. The rewrite lives in the popover, not in your article. Until you click Replace or Insert below, your document is untouched — pressing Escape, clicking away, or hitting Discard leaves it exactly as it was.
So there is no risk in trying an operation to see what it produces. Try Improve writing, read it, discard it, try Confident instead. The only cost is credits.
If the passage you're re-tuning is the 40–60 word answer block at the top of the article, a rewrite can push it out of that window and cost you 20 Content Score points in one click. Same for a paragraph that carried your only sourced statistic. How the score works →
If your voice isn't trained yet
The Re-tune in brand voice row carries its own status. When your voice is trained it shows a green Voice ✓. When it isn't, it shows Train voice → instead, linking straight to your brand's Voice tab.
Pick it anyway on an untrained brand and it refuses before spending anything — you get an honest error and a button through to Brand → Voice, not a rewrite that quietly ignores your voice. A brand counts as trained once it has a computed voice fingerprint, or at least one writing sample of 200 characters or more.
When it does run, the result panel shows a Voice match chip with the gain — how much closer the rewritten passage sits to your fingerprint than the original did.
What it costs
2 credits per re-tune, for every one of the eight operations. The popover says so in its footer.
You are charged only on a real rewrite. Specifically:
- A selection that's too short or too long is rejected before anything runs — free.
- An untrained-voice refusal happens before the AI call — free.
- If the AI fails, or hands back your passage unchanged, that's treated as a failure and nothing is charged.
- Discarding a rewrite you didn't like does not refund the 2 credits — the work was done. Choose the operation deliberately.
Everything BlogCraft charges for →
When it doesn't work
- “AI returned the passage unchanged” — the rewrite came back identical to what you sent. That's reported as a failure rather than silently replacing your text with itself. Try a different operation, or a longer selection.
- “AI couldn't rewrite this selection” — a transient model failure. Try again is right there; nothing was charged.
- The popover disappeared mid-rewrite. Clicking outside it or pressing Escape cancels the pending result. Re-select and run it again.
- The rewrite ignored your custom instruction. Instructions that ask for something other than rewriting the passage — changing the rules, writing something unrelated — are deliberately ignored, and the passage is simply improved instead.