Software Alternatives, Accelerators & Startups

Originality.AI VS ForthWrite

Compare Originality.AI VS ForthWrite and see what are their differences

Originality.AI logo Originality.AI

Protect your reputation and improve your content quality by accurately detecting duplicate content and artificially generated text with the most accurate AI detection tool on the market.

ForthWrite logo ForthWrite

Email that sounds like you, and gets measurably more like you every week. Drafts in Gmail, Outlook, and the browser. Free to start.
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  • Originality.AI Landing page
    Landing page //
    2023-06-29

Originality.AI is the most accurate Chat GPT, Bard, Paraphrasing, and GPT-4 AI content detector and plagiarism checker built specifically for content marketers and SEOs. Originality.AI is built by a team of content marketing and AI experts who deeply understand your needs. By focusing our solution on the world of Web Publishers we are able to build a more accurate AI detector and Plagiarism Checker that your team will want to use!

Our features include: - Accurate AI detection: our tool is 99% accurate on GPT-4, 83% on ChatGPT, and have a ~2% false positive rate - Plagiarism checking: best in-class plagiarism checks allows you to easily identify if content was copied from another source, including Paraphrase Plagiarism - Readability score: see the readability score to ensure your content has the best chance of ranking in the top results of Google - Team management: Originality.AI allows you to add and remove unlimited team members, manage their access level, and see a complete record of all their activity - AI content detector API: integrate the industry-leading AI detection capabilities into your own tools or workflow - Shareable reports: easily show anyone that your content meets your AI, plagiarism, and readability requirements

  • ForthWrite Landing Page
    Landing Page //
    2026-06-19
  • ForthWrite Dashboard
    Dashboard //
    2026-06-19
  • ForthWrite In Gmail
    In Gmail //
    2026-06-19
  • ForthWrite Pricing
    Pricing //
    2026-06-19

ForthWrite is an AI email writing assistant for Gmail and Outlook that learns your writing style from your real sent mail. The more you use it, the more it sounds like you. Get smart drafts in seconds, auto-draft replies before you open your inbox, and maintain your personal voice at scale. Free to start, no credit card required. Works inside Gmail and Outlook on the web.

How it works

ForthWrite captures your tone, sentence rhythm, and sign-offs from your actual sent emails, then uses that profile to generate drafts that match how you write, not a generic AI voice. Every draft you edit or send improves the model over time.

Key features

  • Auto-draft: replies waiting in Gmail before you open your inbox
  • Voice matching from your real sent mail, not templates
  • Recipient-aware drafts that adapt to who you are emailing
  • Prompt Lab for version-controlling and A/B testing your persona prompt
  • BYOK support: bring your own API key for Claude, OpenAI, Grok, Mistral, and more
  • Works in Gmail and Outlook on the web, plus a standalone browser widget
  • Training data export and full data portability

Who uses it

Professionals who send high volumes of relationship-critical email: lawyers, financial advisors, recruiters, account executives, founders, and anyone who wants their inbox handled without sounding like a chatbot wrote it.

Pricing

Free tier includes 10 drafts per week with no credit card required. Paid plans start at $12/month and include unlimited drafts, custom persona prompts, and auto-draft.

Originality.AI

$ Details
paid $0.01 / One-off (100 words)
Platforms
App Core App REST API
Release Date
2022 November

ForthWrite

$ Details
freemium $12.0 / Monthly (Standard plan)
Platforms
Web
Release Date
2026 June
Startup details
Country
United States
State
California
City
San Diego
Founder(s)
Curtis Boortz
Employees
1 - 9

Originality.AI features and specs

  • AI Detection
  • Plagiarism
  • Readability
  • Chrome Extension

ForthWrite features and specs

  • Voice Matching
    Learns from your real sent mail, not templates
  • Auto-draft replies
    Replies waiting in Gmail before you open your inbox
  • Batch-drafting
    Draft replies for your entire inbox with one click
  • Works in browser
    Gmail, Outlook, and web browsers
  • BYOK support
    Claude, OpenAI, Grok, Mistral, and more
  • Prompt Lab
    Version control and A/B test your persona prompt
  • Free tier
    10 drafts per week, no credit card required

Analysis of Originality.AI

Overall verdict

  • Originality.AI is generally well-regarded for its robust AI capabilities and user-friendly interface. It is considered a good tool for those who need consistent and reliable content originality checks, particularly in digital marketing and educational environments. However, like any tool, it may not be perfect, and users might have different experiences depending on their specific needs and contexts.

Why this product is good

  • Originality.AI is built to cater to the growing need for AI-driven plagiarism detection and content originality assessment. Its features are designed for content creators, marketers, and educators who need reliable ways to ensure that their content is unique and not duplicated. It utilizes advanced AI models to analyze text for signs of plagiarism or unoriginal content, providing a detailed analysis of content originality.

Recommended for

  • Content creators looking to ensure their work is unique
  • Marketing professionals aiming to maintain originality in campaigns
  • Educators seeking to verify the authenticity of student submissions
  • Publishers needing to detect plagiarism before content distribution

Originality.AI videos

Originality.AI Tool Review | Its 100% Authentic

More videos:

  • Review - Originality.AI Review - 5 Tests to Check if it Works!

ForthWrite videos

No ForthWrite videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Originality.AI and ForthWrite)
AI
96 96%
4% 4
Writing Tools
96 96%
4% 4
Email
0 0%
100% 100
AI Detection
100 100%
0% 0

Questions & Answers

As answered by people managing Originality.AI and ForthWrite.

What makes your product unique?

Originality.AI's answer

Originality.AI is the most accurate AI content detector. It is effective on AI-written text created by popular large language models such as ChatGPT, GPT-4 and Bard.

One of the reasons that it outperforms other content detector software tools is that the AI algorithms at Originality.AI use natural language processing techniques which require a lot more compute power. This is also the reason we do not offer a free or ad supported option.

See the full AI Detection Accuracy Study.

ForthWrite's answer:

ForthWrite learns your writing style from your actual sent mail, not a generic prompt. Every draft sounds like you wrote it because it was trained on how you actually write. It also auto-drafts replies before you open your inbox, so your email is partially handled before your day starts.

Why should a person choose your product over its competitors?

Originality.AI's answer

We are way more accurate, have better customer service and have an easy to use API

ForthWrite's answer:

Most AI email tools give you a blank box and a "write for me" button. ForthWrite builds a voice profile from your sent history and gets more accurate with every draft you edit or send. Unlike ChatGPT or Gemini, it works natively inside Gmail and Outlook with no copy-paste. Unlike Lavender, it writes the draft, not just scores it.

How would you describe the primary audience of your product?

Originality.AI's answer

Content Marketing Agencies and Online Publishers

ForthWrite's answer:

Professionals who send high volumes of relationship-critical email and cannot afford to sound generic: lawyers, financial advisors, recruiters, account executives, consultants, and founders managing their own inbox.

What's the story behind your product?

Originality.AI's answer

The Originality.AI Story

โ€Jon Gillham founded Originality.AI after selling a content marketing agency he had previously founded.

Originality.AI launched in November 2022 to be able to detect GPT-3 generated content (before ChatGPT had launched).

Having been one of the earliest adopters of generative AI content for SEO purposes at scale through his agency he understood the wave that was coming which Chat GPT and GPT-4 have fully unleashed.

Additionally he believed that there was a need for a modern plagiarism checking solution that didnโ€™t suck! One that provided scan history, detection scores, shareable results, team access etc etcโ€ฆ what you would expect from a modern Plagiarism Checking solution.

The team now includes experienced Machine Learning Engineers and Researchers, Developers and Marketers all on a mission to try and provide transparency on the true originality of any writing.

ForthWrite's answer:

Built out of frustration with AI writing tools that produce text that sounds nothing like the person sending it, and as a way to handle large amounts of daily email. The core insight was that your sent mail is the best training data you already have, and no tool was using it.

Who are some of the biggest customers of your product?

Originality.AI's answer

Content marketers, Publishers, and SEOs

Which are the primary technologies used for building your product?

ForthWrite's answer:

Next.js, React, Supabase, Anthropic Claude, OpenAI, Stripe, Vercel, Chrome Extensions API

User comments

Share your experience with using Originality.AI and ForthWrite. For example, how are they different and which one is better?
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Reviews

These are some of the external sources and on-site user reviews we've used to compare Originality.AI and ForthWrite

Originality.AI Reviews

  1. Jennifer Adams
    ยท Working at WesterWriters ยท
    Love the experience

    Originality.ai emerges as a game-changer in the realm of AI detectors and plagiarism checkers, catering to content marketing agencies, bloggers, and content marketers. Its real-time scanning feature stands out, offering immediate insights into content authenticity, empowering users to make informed decisions swiftly. The advanced algorithms prove highly accurate in detecting subtle instances of plagiarism, ensuring the integrity of the content. The user-friendly interface facilitates seamless integration into existing workflows, enhancing efficiency for professionals across industries. However, there's room for improvement in handling multimedia content, a factor that could elevate the tool's comprehensive utility. Despite this, Originality.ai proves invaluable for maintaining originality and upholding content integrity, making it a commendable choice for those seeking reliable plagiarism detection in the dynamic landscape of digital content creation.

  2. Richard Alvey
    ยท Owner at BrightEdgeSeo ยท
    Great Content Authencity Checker With Plagiarism Tool

    Being a paid user of Originality.ai has transformed my content creation process significantly. This AI detector is a powerhouse, excelling in uncovering plagiarism, ensuring authenticity, and evaluating readabilityโ€”a trifecta crucial for content marketing agencies, bloggers, and marketers. Its user-friendly interface makes it accessible for users of all levels, fostering a seamless experience.

    What truly sets it apart is the tool's holistic approach; it doesn't just spot plagiarism but actively contributes to improving overall content quality. For those committed to producing high-quality, original content, Originality.ai is a smart investment. Its impact on ensuring authenticity and readability positions it as an indispensable tool, deserving of recognition on various review platforms.

    ๐Ÿ Competitors: Surfer SEO
    ๐Ÿ‘ Pros:    Easy to use: the platform has a user-friendly design and no learning curve|Accuracy: it is considered one of the most accurate ai content detectors on the market|Team collaboration: it allows unlimited team members and websites.
    ๐Ÿ‘Ž Cons:    Chrome extension issues: some users reported issues with the chrome extension.
  3. keviny75
    ยท Online Market Advertiser at Digital Nexa ยท
    My Content Companion

    Originality.ai has transformed my content creation experience with its robust AI detector. As a content marketer, the tool's plagiarism detection ensures the authenticity of my work, offering peace of mind in a digital landscape. What sets it apart is the added feature of readability check, providing valuable insights for improving content clarity. The user-friendly interface makes it accessible for bloggers and agencies, streamlining the process for content marketers. Originality.ai has become an indispensable part of my toolkit, offering a comprehensive solution for maintaining content integrity while enhancing overall quality. Its innovative features make it a valuable asset for content marketing professionals, simplifying tasks and contributing to a more efficient and effective content creation workflow.

ForthWrite Reviews

  1. curtisboortz
    ยท Founder at ForthWrite ยท
    I built ForthWrite to fix generic AI email, and I still use it every day

    I built ForthWrite because I kept sending emails that sounded like they came from the same generic AI as everyone else. After launching it, I still use it for my own inbox every day, which is about the most honest endorsement I can give.

    The Chrome extension lives inside Gmail and Outlook on the web. Open a thread, hit Alt+Shift+D, and a draft comes back in your voice, not a template. The free tier is real: 10 drafts per week, no API key, no credit card. Voice matching is included on free, because that is the point.

    What keeps it useful compared to Gemini or a chat tab: it learns from what you actually send. Every edit you make before hitting send becomes a signal. Over time the drafts drift closer to how you really write, and the dashboard shows the improvement curve so you can see it happening.

    The web compose surface lets you draft from forthwrite.ai without installing anything, useful for people who want to try before committing to the extension.

    Standard adds recipient-aware and intent-aware drafting plus AI coaching. Pro adds auto-draft (replies waiting when you open Gmail), batch replies, and Prompt Lab for version-controlling your prompts. Teams adds a shared persona and seat-level analytics.

    ForthWrite is not for everyone. If you just need quick replies and tone does not matter, Gemini is free and already in your inbox. ForthWrite is for people where tone does matter: client communication, relationship-driven threads, external correspondence where sounding off costs something real.

    Disclosure: I am the founder and use it daily. Happy to answer questions in the comments.

    ๐Ÿ Competitors: Jace.ai, Fyxer, Mailmeteor
    ๐Ÿ‘ Pros:    Drafts land inside gmail and outlook; no copy-pasting from a chat window|Voice matching is on the free tier, not paywalled behind paid plans|No api key, no credit card to start; free tier runs on a server-side proxy|Learns from every edit you make before sending; drafts improve over time|Full keyboard flow: alt+shift+d to draft in any thread, no mouse required|Byok on paid plans, 9 providers supported, keys encrypted at rest|Web compose at forthwrite.ai works without installing the extension at all
    ๐Ÿ‘Ž Cons:    10 free drafts/week is enough to evaluate, not enough for a heavy inbox|Auto-draft, batch replies, and prompt lab all require the pro tier|Early-stage product; fewer third-party integrations than mature inbox tools|No mobile app: the extension and add-in are desktop-only (chrome on web, or the outlook desktop add-in)

Social recommendations and mentions

Based on our record, Originality.AI seems to be more popular. It has been mentiond 7 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Originality.AI mentions (7)

  • How to Stop AI Slop in Production: A Two-Layer Validator for LLM Output (2026)
    Detection arms race. Humanizer APIs are trained to fool AI-detector models like GPTZero or Originality.AI. That is a different goal from sounding like a person. Many humanizers degrade prose to win the detector benchmark. They introduce typos, fragmented sentences, and odd punctuation patterns that score "human" on a classifier but read worse to a real reader. Pangram's research on detector bypass is the right... - Source: dev.to / about 2 months ago
  • Detecting AI Slop: Techniques & Red Flags
    Originality.ai - Commercial detection with API access. - Source: dev.to / 6 months ago
  • Spotting LLMs with Binoculars: Zero-Shot Detection of Machine-Generated Text
    I use https://originality.ai/ as the benchmark. I've tested all commercially available services, and Originality (at the time; its been a few months) provided the lowest false-positive rate. As a testing sample, I've built a database of articles written by various text generators and compare them against articles that I scrapped from web from before 2017 (basically any text before LLMs saw daylight). I am sure... - Source: Hacker News / over 2 years ago
  • How to Bypass AI Detectors
    AI detectors are sophisticated algorithms developed to differentiate between human-composed and AI-crafted content. These detectors utilize machine learning and natural language processing (NLP) methodologies to assess linguistic patterns, authorship styles, and other text features, spotting incongruences that imply artificial authorship. As AI-generated content becomes more commonplace, the demand for powerful AI... Source: over 2 years ago
  • As soon as I fix spelling/grammar on my assignment it is flagged as "written by AI"
    My assignment got flagged as "written by AI" when I wrote it. Taking my original draft (with spelling and grammar errors) and putting that into originality.ai says it's 100% human generated. As soon as I fix the spelling and grammar through Grammarly, it says 30% was written by AI. But all I am doing is correcting the grammar and spelling so I don't understand why this is getting flagged? Source: almost 3 years ago
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ForthWrite mentions (0)

We have not tracked any mentions of ForthWrite yet. Tracking of ForthWrite recommendations started around Jun 2026.

What are some alternatives?

When comparing Originality.AI and ForthWrite, you can also consider the following products

GPTZero - Chat GPT detector. Humans Deserve the Truth.

Superhuman - Superhuman is an email management tool.

ZeroGPT - Detect chatGPT content for Free, simple way & High accuracy. OpenAI detection tool, ai essay detector for teacher. Plagiarism detector for AI generated text

Gemini - Gemini, formerly known as Bard, is a generative artificial intelligence chatbot developed by Google. Based on the large language model (LLM) of the same name, it was launched in 2023 in response to the rise of OpenAI's ChatGPT.

Undetectable.ai - The most powerful and advanced AI humanizer tool, built to bypass AI algorithms and ensure that your writing remains undetectable to AI detectors.

Lavender - Realtime coaching for sales emails.