What is HARPA AI?
HARPA AI is a browser extension that brings several AI models, including GPT-5.4, Claude 4.6, Gemini 3.1, DeepSeek, Perplexity and Llama 4, into one app available on any web page. You open it with the Alt + A shortcut or with // commands such as F to finish a draft, G to check grammar or T to translate.
In practice you can summarize YouTube videos, blogs and PDFs, answer emails and draft replies in your own tone, write articles and social posts, track price drops and page changes, and build web automations that click buttons, fill forms and extract data. It can also be connected to Zapier, Make.com and n8n. The vendor states it does not log conversations and supports local models.
Key features
- Access to multiple AI models (GPT, Claude, Gemini, DeepSeek, Perplexity, Llama) in one extension
- YouTube, PDF and web page summarizer
- Gmail assistant that categorizes emails and drafts replies
- Writer that mimics your style, including articles of up to 25,000+ words
- Price drop and page change monitoring
- Browser automation with Zapier, Make.com and n8n integration
Who is it for
- professionals and marketers
- recruiters and HR
- students and language learners
- e-commerce sellers
Pros and cons
- Works on any web page via a keyboard shortcut
- States it does not log conversations and is GDPR compliant
- Advanced automation and scheduled commands require the higher plans
- Token balance limits usage on cloud models
HARPA AI pricing
| Plan | Price | Includes |
|---|---|---|
| for Everyone | 55.4 PLN / month | billed annually; 75 Megatokens/year; no scheduled commands or advanced automation |
| for Pros | 92.3 PLN / month | billed annually; 225 Megatokens/year; includes scheduled commands and advanced automation; extra seats 10% off |
| for Life | 861 PLN / one-time | single user only; 30 Megatokens; unlimited web session connections |
Prices copied from HARPA AI pricing, checked October 12, 2026. Currency as shown by the vendor; taxes may apply.
Is HARPA AI free?
The vendor does not state this clearly on the homepage or pricing page.
HARPA AI alternatives
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 MaxAI | 12 USD/mo | yes | Browser extensions |
 Gemini in Chrome | 97,99 PLN/mo | ? | Browser extensions |
 Monica | 8,3 USD/mo | yes | Chatbots & AI assistants |
 Sider | not listed | yes | Browser extensions |
 Merlin | not listed | yes | Chatbots & AI assistants |
 Opera AI | not listed | yes | Browser extensions |
All alternatives to HARPA AI →
Comparisons
FAQ
What is HARPA AI used for?
Chrome extension giving access to many AI models on any web page, for summarizing, writing, research and web automation.
Is HARPA AI free?
The vendor does not state this clearly on the homepage or pricing page.
How much does HARPA AI cost?
The cheapest paid plan is 55.4 PLN/mo (vendor pricing, October 12, 2026).
What are the best HARPA AI alternatives?
Closest alternatives: MaxAI, Gemini in Chrome, Monica, Sider, Merlin.
Data checked October 12, 2026 on the vendor website (harpa.ai).