Auto Update.
Diff, then decide.
A focused way to revise scientific writing. Select a section, write what you want changed, and ProWriter returns a side-by-side diff: removals struck in red, additions in green. Review it section by section and accept or reject the change. The reference grounding behind the text carries through the edit.
Granular control
Accept or reject each section's change on its own, and revert an individual edit inside the diff. It isn't all-or-nothing.
Grounding carries through
The citations and reference grounding behind a passage stay attached when the text is rewritten, so a revision doesn't quietly drop its sources.
Voice preserved
You revise the section you select rather than regenerate the whole document, so the surrounding tone stays intact instead of being replaced with generic text.
Three pieces. One paragraph.
The prompt, the diff, and the controls, set side-by-side so the writer never loses their place.
One line. Plain English. Acts on the selection above, not the whole document.
Red strike-through for removals, green underline for additions. Hover a span to accept it alone.
If the cited line is rewritten, the pin moves with it. If the cited line is removed, the pin is parked, not deleted.
Accept, reject or refine.
The investigational product was administered to subjects in a randomized, double-blind, placebo-controlled fashion across the trial periodfollowed a randomized, double-blind, placebo-controlled design. No serious adverse events were observed in the subjects who received the treatment.No serious adverse events were reported. Reference grounding is preserved across the edit.[12, 14]
A revision in three keystrokes.
Auto Update doesn't replace your judgment, it puts it on rails. The writer decides what to change; ProWriter shows exactly what changes; the document carries on.
- 01Select.
Highlight a sentence, a paragraph, or a whole section to act on.
- 02Prompt.
Type what you want, "tighter", "in past tense", "halve the length", "match Sec. 11.4 voice".
- 03Read the diff.
Red strike-through for removals; green for additions. Hover any span to see why.
- 04Accept, reject or refine.
Whole edit, span-by-span, or re-prompt.
Why a diff, not a regenerate?
- Whole paragraph replaced, voice drifts
- References frequently dropped
- No record of what changed
- Reviewers can't track edits
- Slow loop: prompt → wait → re-read
- Only what changes is marked
- References pinned to surviving lines
- Diff is the change log
- Reviewers see edits in red and green
- Fast loop: prompt → diff → accept
87% less drafting and review time per CSR section.
A biopharma team developing CAR-T cell therapy for AML compared ProWriter with its in-house workflows, manual drafting and a generic AI tool, across five ICH E3 CSR sections. Each section was timed from reference gathering to hand-off for CMO sign-off, human review included.
- Median reduction in time per section vs. manual drafting
- 87%
- Median reduction in time per section vs. manual drafting
- Median time per section with ProWriter, vs. 4.25 hours manually
- 27 min
- Median time per section with ProWriter, vs. 4.25 hours manually
- Approximate reduction vs. a generic AI tool (about 1.5 hours per section)
- ~70%
- Approximate reduction vs. a generic AI tool (about 1.5 hours per section)
- Redaction needed. The generic AI tool workflow took 15 minutes to 5 hours per document.
- 0
- Redaction needed. The generic AI tool workflow took 15 minutes to 5 hours per document.
One company, five CSR sections, March 2026; four participants (the client's CMO, senior and associate medical writers, plus a ProWriter medical writer, who drafted the ProWriter versions). The client's senior medical writer ran QA/QC and the CMO signed off every version. Not a controlled trial. Redaction time is excluded, and generic AI tool times are approximate, as reported by the client's team. Customer name withheld on request.