Casper AI

What is Casper AI?

Casper AI is a Chrome extension that summarises articles, creates content and helps professionals share insights from what they read. Its Chrome Web Store listing shows about 10,000 users and a 4.4 rating, and it was last updated in September 2024. The developer is listed simply as casper-ai.

It works by reading the page you have open and sending the text to OpenAI GPT models, which return a summary, key points or a draft. You stay on the page while it works, so there is no need to copy text into a separate chatbot.

Key Features

Casper AI summarises the web page you have open, drafts content from it and helps you share the key points, using OpenAI GPT models inside a Chrome extension aimed at professional readers.

• Article summaries: Condenses long articles and reports into key points on the page you are reading, so you do not copy text into a separate chatbot.
• Content creation: Drafts notes, emails or posts from the page content. The Chrome Web Store listing describes “creating content” as one of its three core jobs.
• Insight sharing: Packages takeaways to send to colleagues or stakeholders, which the store listing presents as the final step after summarising.
• Follow-up questions: Lets you ask about the content of the current page, according to third-party listings.
• OpenAI GPT models: Sends the page text to OpenAI GPT models, which return the summary or draft. Third-party directories report this, not the store listing.
• Professional focus: Targets analysts, strategists and business developers, with use cases such as due diligence, deal work and tracking legislation.
• Small install: Version 0.4.2 is a 9.23 MiB download and is offered in English (United States) only.

Pros

Casper AI’s main advantages are that it works on the page you are reading, is free to install and has an established record of about 10,000 users with a 4.4 store rating.

• Saves reading time: Long documents become short summaries, which suits people who read many reports, filings or news articles each day.
• No tab switching: The extension works on the open page, so the summary appears beside the source text.
• Free to try: Installing the extension costs nothing. In-app purchases exist, but you can test summaries before paying.
• Established user base: The Chrome Web Store shows more than 10,000 users and a 4.4 out of 5 rating from 76 ratings.
• Declared data practices: The developer discloses on the store that the extension collects website content and that this data is not sold to third parties.

Cons

Casper AI’s main drawbacks are maintenance and transparency: the last update was on 13 September 2024, its official website returns an error and paid prices are not published.

• Not recently updated: The last release, version 0.4.2, is dated 13 September 2024, so the extension has gone more than two years without an update.
• Official website offline: The site linked from the listing, casperai.xyz, returns an error. The privacy policy is hosted on that domain, so it cannot be read in full.
• Unclear pricing: The store listing shows in-app purchases, but no prices or free-tier limits are published anywhere we could find.
• Chrome and English only: There is no Safari, Firefox or mobile version, and the listing offers English (United States) as the only language.
• Page content leaves your browser: The extension collects website content to produce summaries. Check your employer’s policy before using it on confidential documents.

Who is Using Casper AI?

• Analysts and strategists: Digest reports and market news.
• Policy and legal professionals: Track legislative changes.
• Investors: Speed up due diligence reading.
• Students and researchers: Summarise papers for revision.

Pricing

Casper AI is free to install from the Chrome Web Store and offers in-app purchases (October 2026).

Several directories label Casper AI as completely free. The store listing shows in-app purchases, so expect limits on the free tier.

Disclaimer: Pricing can change. Check the Casper AI listing on the Chrome Web Store.

What Makes Casper AI Unique?

Casper AI stands out for its focus on professional reading, such as due diligence, deal work and legislation. Newer browser assistants now offer more models and features, so its main appeal is simplicity. It suits readers who want a summary button and little else.

Compatibilities and Integrations

• Browser: Google Chrome extension.
• AI model: OpenAI GPT.
• Sharing: Copy or send summaries to others.
• API: No public API.

Casper AI Tutorials

You can learn how to use Casper AI in a few minutes:

1. Add Casper AI to Chrome from the Chrome Web Store.
2. Open an article or a report.
3. Click the extension and choose to summarise.
4. Ask follow-up questions or create a draft from the summary.

How We Rated It

Summary

Casper AI is a simple Chrome summariser that still works for quick reading, but it has not been updated since 2024 and its website is offline. Try it for free, and consider a maintained assistant for daily professional use. Check the permissions it requests before you install it on a work computer.