Research library
Independent proof reports, evidence frameworks, and market validation research.
All research is dated, source-noted, and produced under Market Proof Lab's evidence-based framework. Source notes and limitations are included on every published page.
Proof benchmarks
Published proof reports
Independent proof reports applying documented evidence criteria to vendor claims, market signals, and trust indicators. Source notes and limitations included on every page.
AI Writing Tools: Vendor Proof Assessment 2026
A public-source proof assessment of Jasper, Copy.ai, Writesonic, and Writer.com — separating documented capabilities from unverifiable claims.
AI writing toolsEmail Marketing Platforms: Trust Signal Benchmark 2026
A proof assessment of Mailchimp, Klaviyo, Brevo, and Kit — evaluating deliverability claims, compliance documentation, and verifiable trust signals.
Email marketing platforms