Related Products
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About
Ithy — I Think Why — turns research questions into articles with sources. Fast Research provides focused answers. Deep Research preserves separate AI researcher perspectives and combines findings into a final article.
Users can inspect source links and passages, save a library, organize folders and download HTML. Pictures, video, charts and maps depend on the question, evidence and settings. New answers start private; link sharing and public search publication are separate choices.
Free access is available. Pro costs $20/month or $120/year, billed annually, with 1,000 answers/month under current allowances. Ithy runs in desktop and mobile browsers. Founded by Winson Luk in November 2024.
AI answers can contain errors; check important claims and original sources.
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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.
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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
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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
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Audience
Researchers, students, writers and professionals who need source-linked research articles, independent AI perspectives and a saved research library.
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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
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Not Supported
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API
Offers API
Supported
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
$0
Free access is available. Optional Pro: $20 per month or $120 per year, billed annually, with 1,000 answers per month under current allowances. Individual accounts; current access and renewal terms are shown on the official pricing page.
Free Version
Supported
Free Trial
Not Supported
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Pricing
$7.99 per month
Free Version
Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Supported
In Person
Not Supported
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Company InformationIthy
Founded: 2024
United States
ithy.com
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Company InformationLenz
Founded: 2026
Bulgaria
lenz.io
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Alternatives |
Alternatives |
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Categories |
Categories |
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Integrations
ChatGPT
Not Supported
Claude
Not Supported
Claude Code
Not Supported
Claude Duet
Not Supported
Claude for Legal
Not Supported
Cursor
Not Supported
Model Context Protocol (MCP)
Not Supported
WhatsApp
Not Supported
Zapier
Not Supported
n8n
Not Supported
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Integrations
ChatGPT
Supported
Claude
Supported
Claude Code
Supported
Claude Duet
Supported
Claude for Legal
Supported
Cursor
Supported
Model Context Protocol (MCP)
Supported
WhatsApp
Supported
Zapier
Supported
n8n
Supported
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