Review · Software & AI
HARPA AI review
AI browser extension that combines chat with several AI models, page-aware commands, web automation and a YouTube summarizer.
By the Comredix review desk · Updated November 13, 2026
- Quality (40%)
- 8.2
- Experience (25%)
- 7.4
- Value (35%)
- 7.8
HARPA AI is a browser extension for people who want an AI assistant that acts on web pages, and its YouTube Summarizer is included on every paid plan. The for Everyone plan costs $12 a month billed annually with 75 Megatokens a year and access to cloud models such as GPT-5.4, Sonnet 4.6, Gemini 3.1 Pro, DeepSeek V3, Perplexity Pro, Grok 4.1 and Llama 4, plus features to summarize PDFs, files and YouTube. You can also connect your own API keys or use web session connections to the AI services you already pay for. The for Pros plan is $19 a month billed annually with 225 Megatokens a year, and a lifetime plan is $240 paid once for a single user. The free DEMO plan allows 10 messages a day and up to 100 total AI command runs. The token system and automation features make HARPA more than most people need for summaries alone.
Who it is for
power users who also automate browser tasks
Price
See vendor pricing (USD check pending).
US price check pending. See the vendor pricing page.
Key features
- YouTube Summarizer included on every paid plan
- Summarize PDFs, files and YouTube with AI vision features
- Cloud models including GPT-5.4, Sonnet 4.6, Gemini 3.1 Pro, DeepSeek V3, Perplexity Pro, Grok 4.1 and Llama 4
- Bring your own API keys or use web session connections
- Reusable commands and web monitors for prices and pages
Strengths and weaknesses
- Strength: DEMO plan allows free use within limits
- Strength: A $240 lifetime plan avoids a recurring subscription
- Strength: Works with your own API keys to control costs
- Weakness: DEMO plan is limited to 10 messages a day and 100 total AI command runs
- Weakness: Token balances and connection types take time to understand
- Weakness: The lifetime plan covers a single user only
Key facts
- Free plan: DEMO, 10 messages a day
- for Everyone plan: $12 a month billed annually, 75 Megatokens a year
- for Pros plan: $19 a month billed annually
- Lifetime: $240 paid once, single user
Where it ranks
HARPA AI is No. 8 in our Best AI Video Summarizers verdict.
Alternatives we scored
Visit harpa.ai · Questions or corrections: editorial@comredix.com