SageTube

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Chat with YouTube channels

Ask questions across every video in the channels you follow. Every answer cites the exact video it came from.

How It Works

Paste YouTube Link

We transcribe single videos or entire channels automatically.

Everything Gets Indexed

Your content becomes searchable. Add more videos over time to build up the knowledge base.

Ask Questions

Get answers that reference the exact video.

Answers With Sources

Every answer shows you where it came from. Click a source to open the original video or document.

What does Huberman say about cold exposure and dopamine?

Directly Supported

Based on 2 cited passages

Cold water exposure triggers a sustained rise in dopamine levels — up to 2.5x above baseline — that lasts for several hours. [1] He recommends 1–3 minutes at 40–60 °F, and notes that the dopamine increase is comparable to some pharmacological interventions. [2]

Sources

[1] The Science of Cold Exposure

[2] Dopamine & Motivation Toolkit

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Synthesized

Cross-referenced from 3 sources

Direct Evidence

• Recommends 11 minutes total per week spread across sessions [1]

• End on cold (no warm shower after) to retain the dopamine benefit [2]

Cross-Source Synthesis

• The dopamine data he cites matches findings from the 2000 Sramek et al. study on norepinephrine [1] [3]

"Deliberate cold exposure causes a prolonged release of dopamine... not a brief spike, but a sustained arc of elevated dopamine that can persist for hours."

Chunk #14 View in source ↗

Every Claim Is Traceable

Expand any citation to see the exact passage, then jump to the original source

New

Live Knowledge Pulse

Your Expert keeps itself up to date. Connect a YouTube channel and Pulse syncs new videos automatically — then tells you what it learned.

Always up to date

Set a sync schedule — daily, weekly, or monthly. New videos are picked up and indexed automatically. No manual imports.

AI digest notifications

After each sync, you get a summary of what your Expert learned. "3 new videos added — here's what changed."

Visitors can subscribe too

Share your Expert publicly and let visitors subscribe to Pulse updates. They get notified whenever your knowledge base grows.

Pricing

Start free. Pay only for what you use.

Pay-As-You-Go Rates

Usage is deducted from your wallet balance. You only pay for what you use.

YouTube videos with captions: $0.01 per minute
Transcription: $0.05 per minute (videos without captions)
PDF processing: $0.05 per page
Chat questions: $0.02 per question (Standard) / $0.10 per question (Advanced)

Starter

Try it free.

$0 / month

~8 hours of video included

3 YouTube Channels
1 Expert
Data kept forever

Builder

For getting started.

$9 / month

~15 hours of video/mo included

5 YouTube Channels
2 Experts
Top up anytime

POPULAR

Creator

For regular use.

$29 / month

~48 hours of video/mo included

20 YouTube Channels
5 Experts
Live Knowledge Pulse
GPT-4 & Gemini Pro
Priority processing

Enterprise

For teams.

$99 / month

~200 hours of video/mo included

Unlimited channels & Experts
20% off all usage
API access
Up to 5 team members
Dedicated support

All plans include AI chat. Usage beyond included hours is pay-as-you-go from your wallet. See full pricing details.

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