Fix AI copy that no longer sounds like your brand

Start with the sentence that feels wrong

The draft is accurate enough to recognize, but it could belong to any company. Asking for a complete rewrite often replaces one generic version with another. Start by marking the exact passages that feel wrong: the inflated opening, the unfamiliar vocabulary, the relentless enthusiasm or the call to action that asks too much.

This is a rescue workflow for an existing draft. For the reusable setup behind it, see our brand-voice workflow. Keep an untouched copy before editing so every factual change remains visible.

1. Freeze what the rewrite must preserve

Make a short fact lock from approved sources: product names, prices, dates, quantities, availability, eligibility and any qualification attached to a claim. Include the intended audience and action. If a claim is unsupported, resolve it before polishing the prose; a smoother sentence can make an uncertain statement sound more convincing.

Example instruction: “Treat the attached fact lock as authoritative. Preserve all numbers, names and qualifications. Do not add capabilities, testimonials, comparisons or urgency. Flag contradictions instead of choosing a version.”

2. Diagnose the mismatch before asking for edits

• Too abstract: replace broad benefits with the specific action the reader can take.
• Too excited: remove intensifiers and let the useful detail carry the claim.
• Too formal: replace bureaucratic verbs and long openings with familiar language.
• Too repetitive: vary sentence length and delete sentences that restate the same benefit.
• Wrong relationship: adjust the assumption about what the reader already knows.

Choose two defects to fix first. “Make it more human” gives the model little direction. “Remove the sales superlatives and use the direct verbs in sample B” tells it what to change and what evidence to follow.

3. Use a small, annotated reference

Supply one approved paragraph for the same audience and channel. Mark two or three useful habits: a concrete first sentence, contractions, restrained humor, or a short invitation. Explain which habits matter rather than requesting a loose imitation of the whole passage. Keep the reference’s old product details outside the fact lock.

Example prompt: “Compare this draft with the approved sample. Identify three voice mismatches, quoting the affected phrases. Suggest a local edit for each. Preserve the fact lock. Do not rewrite unaffected paragraphs.”

If the samples disagree, choose the closest approved format instead of blending every style. A support reply should not inherit a campaign headline’s urgency. Ask the model to identify the conflicting instructions before editing. An inconsistent reference set is a reason to narrow the brief, not to add more adjectives to the voice description.

4. Repair one passage, then compare

Illustrative example: the draft says, “Unlock a revolutionary way to effortlessly supercharge your weekly reporting.” The approved product fact says the tool combines selected reports in one view. A practical repair is: “Bring your selected reports into one view.” The edit removes unsupported enthusiasm and retains the documented action without inventing a time saving.

Ask for the original, proposed replacement and reason for each change. Read both versions aloud. Keep the version that uses your vocabulary naturally; do not reward a shorter sentence if it removes an important condition.

5. Correct the setting behind repeated drift

In Jasper, open Jasper IQ → Brand Voice, choose the existing voice and select Edit. The current help guide documents example uploads and a preview showing copy with and without the voice. Use a familiar topic to inspect the difference. Check which voice is actually selected: a workspace default can be overridden for a generation. Save only changes that should apply beyond this draft.

In Claude’s current project workflow, use Set project instructions for enduring voice rules and add approved examples to project knowledge. The project guide documents both controls. Keep temporary campaign instructions in the working chat. This separates a lasting preference for plain language from a one-off request for a playful launch email.

6. Finish with two separate checks

First compare the revised copy against the fact lock, including qualifiers such as “up to,” regional availability and annual billing. Then check voice, rhythm, terminology and the requested next step. These are different editorial decisions; a strong result needs both.

Save one useful before-and-after pair with the reason it improved. Stop when the copy is accurate, recognizable and appropriate for its channel. Repeated whole-draft regeneration adds work when only a sentence still needs attention.