Last updated 07-28-2026
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Lexikon AI
Lexikon AI turns screen recordings of your real text threads into chatbot personas that sound like the people you already know. You capture a chat from WhatsApp, Slack, Discord, or similar apps, upload the recording, and get a twin ready in about a minute on web, iOS, or Android. The focus is continuing conversations you left unfinished, not writing prompts for a generic assistant.
Most chatbots start from a blank persona you describe in a prompt. Lexikon AI instead learns voice and memory from the actual thread you record, including inside jokes and pacing quirks that never show up in a profile field. The trade-off is setup: you need a screen recording with enough scroll depth, and Free users only get 1 minute of capture versus 5 minutes on the $9.99 Pro plan.
The product targets people rehearsing hard talks, exploring what-if scenarios with exes or colleagues, or seeking closure after a conversation that ended abruptly. Typical uses include practicing a raise pitch, testing how a friend might react to news, or replaying banter with someone you miss.
Upload a screen recording of any chat app and Lexikon AI builds a digital twin in about 60 seconds
Free plan captures up to 1 minute of scroll history, roughly 15 to 24 pages of text
Pro plan records up to 5 minutes for deeper twin memory, up to 120 pages of text
Works with WhatsApp, Slack, Discord, Telegram, iMessage, Tinder, and other messaging apps
Uploaded videos are deleted within 24 hours and chat messages use ChaCha20-Poly1305 encryption
Learns voice and memory from your actual chat history instead of a blank prompt
Supports screen recordings from many messaging apps on one workflow
Strong privacy defaults with 24-hour video deletion and encrypted chats
Free tier lets you create multiple digital twins before upgrading
Pro plan adds 5x recording depth and instant responses
Free plan limits recordings to 1 minute, which caps how much chat history the twin can learn
Requires a screen recording setup rather than a simple text import
Free tier may queue responses during busy periods
How do I create a digital twin with Lexikon AI?
With Lexikon AI, you record your screen while slowly scrolling up through a chat from the bottom, then upload that video. Lexikon AI processes the recording in about a minute and opens a chat with a twin that mirrors the other person's style and memory from that thread.
Which messaging apps does Lexikon AI support?
Lexikon AI accepts screen recordings from any messaging app, including WhatsApp, Slack, Discord, Telegram, iMessage, Messenger, Snapchat, Instagram, X, and Tinder. The twin is built from whatever conversation you capture in the recording.
What is the difference between Lexikon AI Free and Pro?
Lexikon AI Free costs $0 per month and allows up to 1 minute of recording, enough for roughly 15 to 24 pages of chat text. Lexikon AI Pro is $9.99 per month, raises the recording cap to 5 minutes (up to 120 pages), and adds instant responses without queue delays.
How does Lexikon AI protect my privacy?
Lexikon AI automatically deletes uploaded videos within 24 hours and encrypts chat messages with ChaCha20-Poly1305. Lexikon AI states that conversation data is not shared with third parties or used to train external models.
Can I use Lexikon AI to practice difficult conversations?
Yes. Lexikon AI is designed for rehearsing talks such as asking for a raise, resolving conflicts, or testing how someone might reply to a risky message. You practice with the twin first, then take what you learned into the real conversation.
Is it ethical to create Lexikon AI twins without consent?
Lexikon AI recommends thoughtful use and says users should consider privacy and consent when creating digital twins from real conversations. The FAQ on Lexikon AI's site frames this as personal learning rather than impersonation for deception.
How long does Lexikon AI take to process a recording?
Lexikon AI typically finishes processing an uploaded screen recording in about one minute. After that, the digital twin is ready to chat with the context and personality drawn from the captured conversation.