# HARPA AI review (2026): is the free plan enough?

> Browser extension that runs AI chat and automations on any page

Checked Nov 13, 2026 · graded Nov 13, 2026 by ToolGPA.

HARPA AI is a browser extension that puts chat models such as GPT, Claude, Gemini, DeepSeek and Perplexity on top of whatever page you have open. It summarizes pages, PDFs and YouTube videos, drafts text, monitors web pages and prices, and runs reusable AI commands. You can connect existing web sessions, bring your own API keys, or buy cloud tokens.

- **Category:** AI Assistants
- **Made by:** HARPA AI TECHNOLOGIES LLC
- **Website:** https://harpa.ai
- **Runs on:** Browser extension
- **Who should skip it:** Skip it if you do not use Chrome, as the site names Chrome and only notes for Brave and Edge.
- **Facts last checked:** Nov 13, 2026

## Pricing

As of Nov 13, 2026, HARPA AI has a free plan, and paid plans start at €14.3 per month, billed annually.

- **Pricing model:** Free plan
- **Free plan:** Free DEMO plan: ChatGPT, Claude and Gemini through web sessions, limited to 10 messages a day, and up to 100 AI command runs.
- **Free trial:** None listed.

| Plan | Price | What you get |
| --- | --- | --- |
| Demo | $0 | Web session connections limited to 10 messages a day, up to 100 AI command runs, custom commands and web monitors. |
| For Everyone (S1) | €14.3 per month, billed annually; 75 Megatokens a year | Unlimited power messages, cloud models, PDF and YouTube summaries, chat history and web monitors. No scheduling or advanced automation. |
| For Pros (S2) | €19.6 per month, billed annually; 225 Megatokens a year | Everything in S1 plus scheduled commands, advanced automation, and a 10% discount on extra seats. |
| For Life (X) | €238 one-time, paid once, single user only | Lifetime access with 30 Megatokens. Use your own API keys or web sessions. Cloud tokens can be bought at a discount. |

Read from https://harpa.ai/pricing on Nov 13, 2026. Prices change, so confirm with HARPA AI before buying.

## Key features

- **Page-aware AI chat:** Opens on any web page with Alt + A and can use the page's content, search results and uploaded files in its answers.
- **Summaries of pages, PDFs and YouTube:** Condenses long videos, articles and documents, and can answer questions about them and jump to timestamps in a video.
- **Commands and automation:** Reusable AI commands, over 100 ready-made prompts, scheduled runs and advanced automation, with scheduling and automation on the S2 and lifetime plans.
- **Page and price monitors:** Watches a web page for changes or a product for price drops and back-in-stock alerts, and notifies you when something updates.
- **Several ways to connect a model:** Connect ChatGPT, Claude or Gemini web sessions, use OpenRouter, Azure or other API keys, or draw on HARPA's cloud connection with a Megatoken balance.

## Good for

- People who want AI on top of whatever page they are reading
- Users who already pay for ChatGPT, Claude or Gemini and want to reuse those logins
- People who prefer a lifetime purchase to a subscription

## Worth knowing

- The pricing page showed euro prices when read from India and no dollar price could be confirmed. The home page FAQ mentions a $12 starting price, so check at checkout.
- Cloud model use is metered in Megatokens: 1 Megatoken is 1 million input tokens, output tokens cost 3 times as much, and premium models use more.
- The pricing FAQ says there are no refunds or discounts, and a demo period is offered instead.
- It runs inside the browser. The site names Chrome and the Chrome Web Store, with troubleshooting notes for Brave and Edge.

## ToolGPA grades

**GPA: 2.2 out of 4**, graded Nov 13, 2026. HARPA AI is a Chrome extension that puts chat models on top of the page you have open, summarizing pages, PDFs and YouTube videos and monitoring pages and prices. The free Demo is 10 messages a day, cloud use is metered in Megatokens, and the pricing page showed euros and says no refunds.

- **Value for money: C.** For Everyone is €14.3 a month billed annually, between the category's middle of $12.42 and its dearer quarter at $18. For Life is €238 once.
- **Free plan and trial: C.** The free Demo connects ChatGPT, Claude and Gemini through web sessions, with 10 messages a day and up to 100 command runs.
- **Features: C.** Page-aware chat, summaries of pages, PDFs and YouTube, commands and monitors. Scheduling and advanced automation are on the dearer plan, and cloud use is metered.
- **Ease of use: C.** A browser extension where you connect web sessions or keys before it works. No store rating is on record.
- **Platforms and integrations: B.** A browser extension linked to ChatGPT, Claude, Gemini, OpenRouter, Azure, Make, Zapier and n8n. The site names Chrome, with notes for Brave and Edge.

These are ToolGPA's own grades. Graded from this listing, whose facts were read from HARPA AI's own pages on 13 November 2026. Not based on using the product, and shorter than our full reviews.

## Where it stands among AI assistants

- HARPA AI's GPA of 2.2 is higher than 15 of the 87 other AI assistants we grade, and level with 15.
- It stands best on platforms and integrations (B, above 42 of 87) and worst on features (C, above 1).
- Its paid plans start at about $15.98 a month, against a middle price of $12.46 for the category: 37 of the 53 others that charge start lower.
- On features, ease of use and platforms it scores 2.3 out of 4. 28 tools score higher and cost less.

The category's chart of price against score: https://toolgpa.com/charts/ai-assistants

## Keep it, or make your own?

**Keep it.** To replace HARPA AI you would be making an AI model, which you can rent by the request but not make. That is not a weekend's work, with an AI app builder or without one. That makes this kind of software worth paying for, not this one in particular: 57 of the 87 other AI assistants grade higher. It costs $191.71 a year.

- You could not: An AI model, which you can rent by the request but not make.
- You could not: An AI agent, with the models and the safeguards behind it.
- You could not: A search engine with an AI model behind it.
- You could not: Connections to other products, each kept working as those products change.

A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it.

## Works with

ChatGPT, Claude, Gemini, OpenRouter, Azure, Make, Zapier, n8n

**Tags:** Chat assistant, AI agents, AI search, Workflow automation, AI features

## Alternatives

- [Monica](https://toolgpa.com/tools/monica): AI assistant with many models, built around a browser sidebar. [Compare](https://toolgpa.com/compare/harpa-ai-vs-monica)
- [Sider](https://toolgpa.com/tools/sider): AI sidebar for the browser with many models and mobile apps. [Compare](https://toolgpa.com/compare/harpa-ai-vs-sider)
- [MaxAI](https://toolgpa.com/tools/maxai): AI sidebar for Chromium browsers that chats about the page you are on. [Compare](https://toolgpa.com/compare/harpa-ai-vs-maxai)
- [Merlin](https://toolgpa.com/tools/merlin): AI sidebar extension with models from several labs in one account. [Compare](https://toolgpa.com/compare/harpa-ai-vs-merlin)
- [ChatHub](https://toolgpa.com/tools/chathub): Ask several AI models one question and compare answers side by side. [Compare](https://toolgpa.com/compare/chathub-vs-harpa-ai)

## Sources

The prices, plans, platforms and features above were read from these pages on Nov 13, 2026:

- https://harpa.ai/pricing
- https://harpa.ai

Page: https://toolgpa.com/tools/harpa-ai
Listed by ToolGPA (toolgpa.com).