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About

Checkwise verifies factual claims and returns a verdict backed by the sources it actually used, rather than an unexplained confidence score. A claim can be submitted as plain text, as the URL of an article, or checked against a live video while it plays. For each check, Checkwise searches for evidence, reads the pages it finds, and reports a verdict per source together with the passage that supports it. Every source carries a reliability grade from A to D, computed before the check from criteria such as editorial rigour, correction practices, transparency of ownership and funding, and reputation. The grading methodology is published, and each graded site has a public page explaining its grade, so an editorial team can trace why a verdict came out the way it did and contest a grade. Available as a web application, a browser extension for Chrome, Firefox, Edge and Brave, and a REST API for teams running checks inside their own editorial or moderation pipeline.

About

Lenz is an audit-grade fact-checking API for AI-drafted text, built for teams that need to check factual claims before customers or clients see them. It reads a draft, memo, model answer, or page of copy, extracts the factual statements that can be checked against independent public sources, and returns a result for each. Its workflow follows four API primitives: extract verifiable claims, assess them in bulk with a fast multi-model verdict, escalate uncertain statements to a full verification, and ask follow-up questions grounded in the verification. Full verification runs through a structured five-stage pipeline of framing, research, debate, panel review, and conclusion. Lenz searches public sources, scores evidence for authority, relevance, and recency, has models from multiple vendors argue both sides of a claim, and returns a verdict, confidence score, cited sources, and reasoning trace that users can audit.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Newsrooms and editorial teams, fact-checking organisations, content moderation and trust and safety teams, researchers, communications and public affairs teams, and developers integrating verification into their own products.

Audience

AI product teams, developers, editors, and researchers wanting to verify factual claims in AI- or human-written text against independent public sources before publication or delivery

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$15/month
Free Version Supported
Free Trial Not Supported

Pricing

$7.99 per month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

Checkwise
Switzerland
checkwise.ai

Company Information

Lenz
Founded: 2026
Bulgaria
lenz.io

Alternatives

Alternatives

Facticity.AI

Facticity.AI

AI Seer
Facticity.AI

Facticity.AI

AI Seer

Categories

AI Fact-Checking Supported

Categories

AI Fact-Checking Supported

Integrations

ChatGPT Not Supported
Claude Not Supported
Claude Code Not Supported
Cursor Not Supported
Model Context Protocol (MCP) Not Supported
WhatsApp Not Supported
Zapier Not Supported
n8n Not Supported

Integrations

ChatGPT Supported
Claude Supported
Claude Code Supported
Cursor Supported
Model Context Protocol (MCP) Supported
WhatsApp Supported
Zapier Supported
n8n Supported
Claim Checkwise and update features and information
Claim Checkwise and update features and information
Claim Lenz and update features and information
Claim Lenz and update features and information