Is Lumiexi completely free?

Yes. Summaries are free — no sign-up, no premium tiers, no hidden costs. During heavy traffic, capacity is shared; if it's ever saturated, you can add your own API key in one click — free tiers (Google Gemini, OpenRouter, Groq) and paid keys (OpenAI, Claude, DeepSeek, xAI) both work — and keep summarizing right away.

Can I use my own OpenAI, Gemini, or Claude API key?

Yes. If the shared AI is ever busy, add your own API key and your summary runs on it instantly. Keys from OpenAI, Google Gemini, Anthropic Claude, OpenRouter, DeepSeek, Groq, and xAI all work — free-tier or paid. Your key stays in your browser and is never sent anywhere except the AI provider you chose.

Do I need to create an account or install anything?

No. Lumiexi works entirely in your browser. No account, no email, no Chrome extension, no app download. Just paste a YouTube URL with its transcript and get your summary instantly.

How do I summarize a YouTube video?

Open the YouTube video, click '...' below the player, then 'Show transcript'. Copy the transcript, then paste it into Lumiexi along with the video URL. Click Summarize and you'll get an AI summary with key points in seconds.

Can I summarize long YouTube videos?

Yes. Lumiexi handles videos of any length — from 2-minute Shorts to 3-hour lectures and podcasts. The AI processes the full transcript and condenses it into a clear summary regardless of video length.

How is Lumiexi different from other YouTube summarizers?

Most tools just give you generic text. Lumiexi gives you 4 purpose-built formats (study notes, Twitter threads, action items), a shareable link you can send to anyone, and export to Markdown. No sign-up, no extension required.

Is my data stored or tracked?

Summaries are stored with a shareable link so you can share them. We don't track you, store your IP, or require any personal data. Your transcript is processed by AI and only the summary is saved — never the original transcript.

What summary formats are available?

Lumiexi offers 4 formats: Quick Summary (paragraph + key points), Study Notes (structured with terms and quotes), Twitter/X Thread (viral 6-10 tweet thread), and Action Items (step-by-step guide for tutorials).

What types of YouTube videos can I summarize?

Any video with captions or subtitles — tutorials, lectures, podcasts, interviews, documentaries, webinars, product reviews, and more. Works with any language, not just English.

Why do I see a loading delay sometimes?

The time depends on the video transcript length and AI processing. Most videos summarize in 5-15 seconds. Longer videos with large transcripts may take slightly longer.

Pricing

Coming Soon

Lumiexi is currently free for everyone — no accounts, no subscriptions, no hidden fees. A Pro tier is in development for users who need heavy batch processing, priority API routing, and custom model integrations. It will launch in 2027.

Try Lumiexi — it's free