Expert-level feedback on your grants and papers.
Before reviewers see them.

Successful submissions are rarely won on the idea alone; they're won in the fine-tuning. ProofInk.AI analyzes grant proposals, journal and conference manuscripts, and response-to-reviewer letters the way experienced panelists and referees would — scored against your target agency's own review criteria, adapted to your field, with evidence-backed critiques that quote your own text and a prioritized improvement plan. Results in minutes, not weeks.

  • Built by an active researcher who has sat on both sides of peer review — not outsourced to a team that has never faced a grant or paper rejection.
  • ProofInk.AI puts the structured, criterion-level feedback and fine-tuning entirely in your hands, with you in control.
11
Agency-specific rubrics for grants — plus a 10-criterion rubric for papers, reweighted by field
NSF · NIH · DOE · Simons · NSERC · CIHR · SSHRC · ERC · UKRI · Wellcome · NIHR*
7-phase
Feedback architecture
< 5–15 minutes
Average deep analysis time
Deep Feedback
Grant Proposal Feedback · 5 criteria
Significance 4/5
Approach 2/5
Innovation 4/5
⚠ Approach: "We will validate using a cohort of 50 patients" — no power analysis provided. Reviewers will flag this. Fix: Add statistical power calculation justifying n=50 for expected effect size.
Deep Feedback
Paper & Manuscript Feedback · 10 criteria
Novelty 4/5
Limitations 2/5
⚠ Limitations: "Our method outperforms all baselines across every benchmark" — no failure modes, dataset constraints, or threats to validity are discussed. Fix: Add a limitations paragraph naming the conditions under which the method degrades, and state what the results do not establish.

ProofInk.AI covers the whole submission cycle — not just the first draft

📝
Prepare
Quick & deep feedback while you draft, until you feel it's submission-ready
Submitted
Reviewers are reading — nothing for you to do yet
📨
Reviews Back
Revision Response reads every reviewer comment and compares it with your submission and updated version
✉️
Respond
A drafted, point-by-point response letter — yours to edit and send
🔒 Your documents are private & confidential
🚫 Never used for model training
🗑️ You control your data — delete anytime

A structured review system, not a chatbot

ProofInk.AI delivers structured, criterion-level analysis with mandatory evidence — not surface-level comments. Built with agency-specific rubrics and multi-angle evaluation for both grant proposals and research papers. And when reviews come back, it checks your revision against every reviewer comment and drafts your response letter.

📋

Grant Proposal Feedback

Multi-agent analysis against your target agency's actual criteria. Evaluates each criterion with concrete rubric anchors, cross-references for internal consistency, and generates a prioritized improvement roadmap.

USA: NSF · NIH · DOE · Simons  |  Canada: NSERC · CIHR · SSHRC  |  EU: ERC  |  UK: UKRI · Wellcome · NIHR*
📄

Paper & Manuscript Feedback

Comprehensive analysis across 10 criteria with rubric-calibrated scoring. Rigorous multi-angle evaluation probes for logical weaknesses, unsupported claims, and methodology gaps. Critiques include page-level evidence and specific, actionable fixes.

10 criteria · Multi-angle evaluation · Page-level citations
✉️

Revision Response

Reviews came back? Upload the reviewers' comments alongside your revised manuscript. ProofInk.AI separates out each reviewer concern, checks it against your revision with page-level evidence, marks whether it is fully addressed, partially addressed, or still open, and drafts a point-by-point response-to-reviewers letter you can edit and export.

Reviewer-by-reviewer · Evidence-backed · Response letter (LaTeX · Word · Markdown)
💬

Document Q&A

Ask questions about your uploaded documents and get answers grounded in the actual text. Semantic search finds the most relevant passages. Works across your entire project library.

Semantic retrieval · Multi-doc
📌

Evidence-Backed Feedback

Every point — strength or weakness — must cite a direct quote from your document. No vague criticism. Every finding is traceable to specific text.

Mandatory quoting
🔄

Cross-Reference Checking

A dedicated pass catches contradictions between sections that single-shot analysis misses — like budget-scope mismatches or abstract-methodology gaps.

Internal consistency verification
📋

Version Tracking

Every revision is tracked. Compare your latest draft against a previous feedback report to see which issues have been resolved, partially addressed, or remain unresolved — so you know exactly what still needs work. Disagree with a point? Mark it Not Agree and it's dropped from future comparisons — so ProofInk tracks only the feedback you accept.

Revision-aware feedback
🔍

Rigorous Multi-Angle Evaluation

Deep feedback evaluates each criterion from multiple independent perspectives, then reconciles them — catching disagreements that single-pass analysis misses. Where reviewers diverge, the finding is flagged for your attention so you know which scores are confident and which are worth a second look.

Multiple independent perspectives · Confidence flagging
🎯

Field-Adaptive Analysis

Your paper isn't reviewed against generic criteria. ProofInk.AI detects your field and reweights the scoring criteria for it, then applies that field's reviewer guidance — so a computer science systems paper is held to CS standards and a clinical study to clinical ones. Five field profiles, each with its own weights and expectations.

Computer Science · Biomedical & Life Sciences · Engineering · Math & Physics · Social Sciences
📐

Math & Proof Verification

For papers with formal mathematical content, theorems and proofs get a dedicated verification pass. Claims are checked for logical gaps, unstated assumptions, and notational consistency — the kinds of issues a careful referee would flag.

Theorem & proof analysis · Math & Physics papers
🔒

Private & Confidential

Your documents are never used for model training. Your proposals, papers, and research data stay strictly confidential — processed for your analysis only. For single reviews, documents are automatically deleted when you close the page. Lab Suite subscribers manage their own document retention.

Your data stays yours

Multi-agent feedback architecture

Each analysis runs a structured multi-agent pipeline — specialized agents handle extraction, evaluation, cross-checking, and synthesis, the same way a panel of experienced reviewers would assess your work from different angles.

1

Extract

Parse evaluation criteria, requirements, and key structural elements from your document

2

Evaluate

Score each criterion independently using rubric-calibrated anchors specific to your review type

3

Cross-Check

Verify internal consistency across sections and flag contradictions or gaps

4

Synthesize

Generate a prioritized improvement roadmap with evidence-backed, actionable fixes

Simple pricing. Pay per feedback report or subscribe.

Start with a free quick feedback report. Upgrade when you need deeper analysis — no long-term commitment required.

Quick Feedback
Fast grant or paper assessment
Free
2 free quick analyses included
  • Grant or paper feedback in minutes
  • Agency-specific criteria
  • Strengths & weaknesses with quotes
  • Top priorities to fix
  • Revision-aware feedback (compare drafts)
  • Export to PDF, Word & Markdown
  • Revision Response (respond to reviewers)
  • Multi-pass criterion analysis
  • Self-consistency checking
  • Dedicated gap & contradiction checker
  • Prioritized improvement roadmap
Start Free →
Deep Proposal & Paper Feedback
Our most thorough analysis
$25 / analysis
Pay only when you need it
  • Everything in Quick, plus:
  • 1 deep feedback report (grant or paper or revision response)
  • Works for grants and paper manuscripts
  • Multi-pass criterion-by-criterion analysis
  • Dedicated gap & contradiction checker
  • Cross-validated findings (N=3 independent reviews)
  • Prioritized improvement roadmap
  • Export to PDF, Word & Markdown
  • Revision-aware feedback (compare drafts)
  • Revision Response — respond to reviewers & draft your response letter
  • Ideal for final pre-submission review
Get Deep Feedback →
3-Pack Lab Suite
Deep feedback + document Q&A
$55 / one-time
3 deep feedback reports + Q&A · never expires
  • Everything in Quick, plus:
  • 3 deep feedback reports (grant or paper or revision response)
  • Multi-pass criterion-by-criterion analysis
  • Dedicated gap & contradiction checker
  • Cross-validated findings (N=3 independent reviews)
  • Prioritized improvement roadmap
  • Revision-aware feedback (compare drafts)
  • Revision Response — respond to reviewers & draft your response letter
  • Document Q&A chat (200 questions)
  • Project workspaces & document library
  • Export to PDF, Word & Markdown
  • Use any time — credits don't expire
Buy 3-Pack Lab →
Lab Bundle
Everything you need, one-time purchase
$99 / one-time
7 deep feedback reports + Q&A · never expires
  • 10 quick analyses
  • 7 deep feedback reports (grant, paper, or revision response)
  • Multi-pass criterion-by-criterion analysis
  • Dedicated gap & contradiction checker
  • Cross-validated findings (N=3 independent reviews)
  • Prioritized improvement roadmap
  • Revision-aware feedback (compare drafts)
  • Revision Response — respond to reviewers & draft your response letter
  • Document Q&A chat (300 questions)
  • Project workspaces & document library
  • Export to PDF, Word & Markdown
  • Review version history
Get Lab Bundle →

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ProofInk.AI is an independent tool and is not affiliated with, endorsed by, or sponsored by any funding agency or research council, including NSF, NIH, DOE, Simons Foundation (USA), NSERC, CIHR, SSHRC (Canada), ERC (EU), UKRI, Wellcome Trust, NIHR (UK), or any other organization. Review templates and evaluation criteria are based on publicly available solicitation documents and general grant-writing best practices — they do not constitute official agency guidance. All agency names, acronyms, and trademarks are the property of their respective organizations and are used here solely for identification purposes. Always refer to the specific solicitation and agency guidelines for authoritative requirements.