Reduz · Head-to-head
Harpa AI vs Reduz: browser agent or BYOK summarizer?
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ReduzUpdated May 11, 2026Side-by-side comparison
HARPA AI is a browser-agent assistant with 100+ predefined commands for summarization, web automation, monitoring, and price tracking. It supports multi-model routing across GPT, Claude, Gemini, DeepSeek, and OpenRouter, and supports bringing your own AI key on a paid plan. Reduz is intentionally smaller: a focused summarizer where bringing your own AI key is the default setup for everyone, not a paid-tier unlock. Pick by whether you want a power-tool browser agent or a focused summarizer.
Quick verdict
Feature comparison
The categories below cover what most readers compare when deciding between Reduz and Harpa AI — source coverage, privacy approach, your own AI key support, history and exports, and price.
| Category | Reduz | Harpa AI |
|---|---|---|
| Product scope | Focused source summaries, local history, and export. | Browser-agent automation and broad assistant workflows. |
| BYOK posture | Your own AI key is a first-class mode. | BYOK is associated with higher-tier or advanced usage. |
| Hosted option | 100 free credits a month for users who do not want provider setup immediately. | Tiered assistant pricing. |
| Source coverage | YouTube, PDFs, articles, webpages, selected text, and transcripts. | Broad page automation and assistant workflow coverage. |
Output fit
Nico wants BYOK summaries from articles, PDFs, and YouTube — but doesn't need browser automation, price monitoring, or a Zapier-style command system on top.
What Reduz produces
- Article summarized with Nico's personal Anthropic key — request goes direct from your browser to Claude.
- PDF summarized from the open Chrome tab without uploading.
- YouTube transcript summarized with timestamps from the watch page.
- BYOK is the default mode in Reduz — no lifetime-tier purchase required to use your own key.
- Local SQLite history keeps all three summaries searchable; Markdown / PDF / DOCX export ready.
What Harpa AI produces
- Article summarized via /summary command in the HARPA chat panel.
- PDF summarized via /summary + drag-and-drop or page-aware mode.
- YouTube summarized via /youtube-summary with chapter breakdowns.
- Bringing your own AI key requires a paid HARPA plan — free and standard tiers route through HARPA's CloudGPT.
- Plus a much wider feature surface: web automation, monitoring, /repurpose commands, Zapier integration.
Privacy and architecture
Default your-own-AI-key summarizer vs paid-tier BYOK in a browser agent
HARPA AI is one of the few mainstream Chrome extensions to genuinely support bringing your own AI key, which is worth crediting — but it requires a paid HARPA tier, not the default mode. Free and standard HARPA tiers route through CloudGPT (HARPA's hosted relay). Reduz makes your own AI key the default summarizer path: available to every user on first install, no account required, no paid tier to unlock. Provider keys stay in Chrome extension storage on your device and source text goes directly from your browser to your selected AI provider (OpenAI, Anthropic, Google Gemini, DeepSeek, or xAI Grok). Reduz uses click-only permission instead of the broader access most browser agents need; ships no analytics or telemetry; and stores summary history on your device. The trade is that Reduz does not automate, monitor, or chain page-aware commands — that's HARPA's territory.
Frequently asked questions
Does Reduz automate browser workflows like HARPA?
No. Reduz intentionally focuses on summarization, history, provider control, and exports. It does not run /commands, monitor pages for changes, automate forms, or integrate with Zapier. HARPA AI is purpose-built for that broader automation surface.
Why is Reduz's BYOK different from HARPA's X-tier BYOK?
HARPA's BYOK is on a paid lifetime tier — free and standard HARPA users route through HARPA's CloudGPT relay. Reduz bring your own AI key is the default: every user can paste their own provider API key on first install, no paid tier, no account required.
Which providers does Reduz support for BYOK?
OpenAI, Anthropic Claude, Google Gemini, DeepSeek, and xAI Grok. Each can be configured separately, and Reduz remembers the active provider and model. HARPA supports OpenAI and OpenRouter (which fans out to many models).
Can Reduz summarize multiple sources in one run like HARPA's batch commands?
Reduz summarizes one active source at a time and saves each to local history. HARPA's command system supports more complex chained workflows. If batch processing many URLs at once matters, HARPA fits that scope better.
Is Reduz free?
Yes. Reduz includes 100 free credits a month. Using your own AI key removes the credit limit.
Do I need an account?
Not when you use your own AI key. An account is only needed for free credits, paid plans, or cloud backup.
Where is my data stored?
Summary history is stored in your browser. Cloud backup is opt-in and encrypted on your device before upload.
Which AI providers does Reduz support?
Reduz supports OpenAI, Anthropic Claude, Google Gemini, DeepSeek, and xAI Grok. You can also use free credits without setting up an AI account.