AI-powered YouTube companion

Summarize any
YouTube video
in seconds

Instant, intelligent summaries of YouTube transcripts using OpenAI, Claude, or Gemini. Never sit through a long video just to find one key insight.

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Everything you need to
learn faster

A fully-featured AI summary toolkit built right into your browser, available on every YouTube page.

Instant Summaries

Get the gist of any YouTube video in seconds. No waiting, no pausing — AI reads the transcript and delivers a concise summary immediately.

🤖

Multi-AI Support

Switch between OpenAI GPT-4, Anthropic Claude, and Google Gemini. Use your own API keys for full control over cost and model choice.

✍️

Custom Prompts

Define exactly how you want your summaries. Ask for bullet points, key takeaways, timestamps, or a deep-dive analysis — your prompt, your rules.

📄

Long Video Support

Works with hour-long lectures, documentaries, and podcasts. Smart chunking handles transcripts of any length without losing context.

🌍

Multi-language

Summarize videos in any language YouTube supports. Receive summaries in your preferred language regardless of the original content.

📋

Copy & Export

One-click copy or export your summaries as text. Paste directly into Notion, Obsidian, Google Docs, or anywhere you work.

Three steps to instant insight
1

Install the extension

Add AISummary to Chrome, Firefox, or Edge in one click. No account needed to start for free.

2

Open any YouTube video

Navigate to any YouTube video. The AI Summary panel appears automatically in the sidebar.

3

Get your summary

Click "Summarize." Your chosen AI model reads the transcript and returns a clean, actionable summary.

4

Copy & use it

Copy the summary, export it, or ask follow-up questions. Your insights, ready when you are.

Supported AI Models
GPT-4o
Claude 3.5
Gemini 1.5 Pro
GPT-3.5 Turbo
Gemini Flash
Simple, honest pricing

Start for free. Upgrade when you’re ready for unlimited power.

Free Forever
$0
No credit card required
  • Basic AI summaries
  • Chrome, Firefox & Edge
  • Bring your own API key
  • Long video support
  • Custom prompts
  • Automate ChatGPT & Claude
Install Free →
Popular
Pro
$11.99
per year — billed annually
  • Everything in Free
  • Long video summaries
  • Custom prompt templates
  • Automate ChatGPT & ClaudeAI
  • OpenAI, Claude & Gemini APIs
  • Priority support
Buy Pro — $11.99/yr

Already bought? Get your key →

🔑 Already purchased? Retrieve your PRO API key via email.
Loved by learners
★★★★★

I use this every day for research. Instead of watching 2-hour lectures, I get the key points in 30 seconds. Absolute game-changer for my PhD workflow.

Alex K.
PhD Researcher
★★★★★

The custom prompt feature is brilliant. I set it to extract action items and timestamps — now every video I watch turns into an actionable note automatically.

Sara M.
Product Manager
★★★★★

Been using it with Claude API. The summaries are incredibly thoughtful. Worth every penny of the Pro plan — honestly surprised it's only $11.99/year.

James L.
Software Engineer

Start summarizing today.
It’s free.

Join thousands of learners who save hours every week with AI-powered YouTube summaries.