Instantly chat with
YouTube videos with 1-click timestamp jumps.|
Without Leaving Your Tab.
Stop juggling 20 browser tabs and paying $240/year for AI token resales. Highlight any text, YouTube video, or email draft to launch an instant floating side-chat with zero context loss.
"...if you compare test-time search against raw parameter size, the inference curve grows exponentially..."
Three seconds from doubt to action.
No copy-pasting, no fresh browser tabs, and zero context drift.
Highlight or Shortcut
Select any sentence, code snippet, or YouTube video. Press Alt+S (or Alt+G in any email draft) to summon the floating action bar.
In-Place AI Streaming
Your side-question streams immediately inside a draggable, non-blocking window powered by your active Claude 3.7 or Gemini 2.5 session.
1-Click Execution
Click [ ✍️ Insert ] to replace your email draft, click [ 🎬 02:15 ] to seek the YouTube player, or copy code in 1 tap.
Test the live engine across four real-world surfaces.
Select a scenario below. Highlight any sentence or click highlighted prompts to test in-context streaming.
Every superpower designed for uninterrupted deep work.
SubChat Prime transforms your browser into an autonomous AI workspace without extra monthly bills.
YouTube Video Deep-Chat
Chat with 2-hour podcasts and tutorials. Extracts timestamped transcripts automatically. Click timestamps like [04:20] to jump the video directly.
In-Place Ghostwriter & Inserter
Type rough thoughts in Gmail, Notion, or Twitter/X. Hit Alt+G and click [ ✍️ Insert ] to replace your draft with polished executive copy.
Instant Fact-Checker & Truth Verdicts
Highlight viral claims on news or social media. Get structured factual breakdowns with visual verdict badges (✓ Likely True, ⚠️ Needs Context).
Multi-Model Session Relay
Routes streaming queries through your logged-in claude.ai, gemini.google.com, or chatgpt.com tabs. Zero extra token bills.
Context-Aware Floating Toolbar
Highlight code to get Explain Code, Find Bugs, and Refactor pills. Highlight email text for Polish & Insert. One-click instant execution.
100% Private Client-Side Connection
Zero middleman servers. Queries flow directly from your browser to your AI login via client TLS 1.3 encryption. Your data stays on your machine.
Built for people who value their focus.
See how SubChat Prime saves 5+ hours every week across different roles.
Engineers & Developers
Highlight cryptic error stacks or complex PR diffs on GitHub. Ask micro-questions and refactor algorithms in place without losing your place in deep documentation.
Founders & Writers
Draft emails, pitch decks, and social replies 3x faster with Alt+G. Polish rough thoughts and insert high-conversion copy into textboxes with 1 click.
Video & Podcast Learners
Extract timestamped takeaways from 2-hour YouTube lectures in 5 seconds. Click timestamps to jump directly to critical explanations and skip all the fluff.
Direct browser relay vs. resold token markups.
Why pay $20–$40/month for a third-party AI sidebar when you already have Claude Pro, Gemini, or ChatGPT?
| Capabilities & Architecture | SubChat Prime | Traditional AI Sidebars (Monica, Sider, MaxAI) |
|---|---|---|
| Token Resale Markup | ✓ $0 (Zero second AI bill) | ✕ $240–$480/year token subscription |
| YouTube Video Timestamp Seeking | ✓ Clickable [MM:SS] timestamps seek player | ✕ Static text summaries only |
| Direct In-Place Textbox Insertion | ✓ 1-Click insert into Gmail, Notion & Twitter | ✕ Manual copy-pasting required |
| Data Route & Privacy | ✓ 100% Private (Direct to your AI login) | ✕ Routed through middleman servers |
| Multi-Window Floating Side-Chats | ✓ Multiple draggable, floating subchats | ✕ Single locked sidebar resizing page |
Loved by power users who hate context loss.
Unfiltered feedback from developers, researchers, and creators.
"The YouTube video timestamp seeking is an absolute game-changer. I digest 2-hour technical podcasts in 8 minutes and jump straight to the code walkthroughs."
"The fact-checker gives me structured truth verdicts on arXiv claims in 3 seconds. And it uses my existing Claude Pro session for free."
"Hit Alt+G, get a polished email reply, and click Insert into Textbox. It replaces text in Gmail without breaking Draft.js. Pure magic."
"Zero setup, no second AI bill to manage. It piggybacks on my existing Claude Pro session. Saved me hundreds of dollars already."
"Floating subchats that don't push the page layout around are 10x better than clunky sidebar extensions."
"SubChat Prime turns every website into an interactive pairing partner. The floating quick actions toolbar is so intuitive."
Zero token markups. Priced as a pure utility.
No middleman server costs to pass on. Get started completely free.
Free
For casual web reading & student research.
- ✓ Highlight → Ask on Claude, Gemini, ChatGPT
- ✓ 🎬 YouTube Video Q&A with timestamps
- ✓ ✍️ In-Place Textbox Inserter
- ✓ 🛡️ Instant Fact-Checker
- ✓ 10 side-chats per day
Pro
For developers, writers, and power knowledge workers.
- ✓ Everything in Free, unlimited side-chats
- ✓ Unlimited YouTube Video Deep-Chats
- ✓ Unlimited In-Place Ghostwriting (Alt+G)
- ✓ 3 Adaptive Context modes (Selection, Nearby, Full Page)
- ✓ Unlimited simultaneous floating windows
- ✓ Multi-engine fallback cascade
Lifetime
One single payment. No recurring cards on file. Keep forever.
- ✓ Everything in Pro, permanently unlocked
- ✓ All future feature updates included
- ✓ Multi-device portable license key
- ✓ Priority Discord support channel
Interactive Savings Calculator
Calculate your annual savings compared to traditional $20–$40/month resold token subscriptions:
Answers to common questions.
Your focus
deserves uninterrupted AI superpowers.
Free to start, zero server tracking, and runs on your existing AI logins.