Cognitive Profile · Private Beta

Upload your AI chat history. The analysis runs entirely in your browser — only 15 aggregate numbers (message lengths, timing, pushback rate, question frequency) leave your device. We never see, store, or read a single word of your conversations. Your profile generates in under a minute.

Generate your profile See Kael's profile →
16
Cognitive archetypes
0
Words of your chats read
< 60s
To generate your profile
4
Platforms supported
How it works
1
Your browser extracts structural metadata — message length, timing, question and pushback patterns. No content leaves your machine.
2
Those 15 numbers are sent to Claude, which generates a behavioral profile. Claude never sees your messages — only the aggregate statistics.
3
The profile is encoded into a shareable link. Nothing is stored on our servers unless you choose to save it.
Run the verifier → Inspect the exact code that runs on your machine before anything leaves it.

If you had this data from three years ago —
what would it tell you about the mistakes
you were making in how you think?

Most people have been talking to AI for over a year. That history is a cognitive record no CV can replicate. ThinkLedger reads the structure of that record — not the content — and shows you what it reveals.

Real profile · Kael · 20 months of data
The Synthesiser
The Midnight Strategist

74% of messages sent after 10pm. This is not insomnia — it is a cognitive schedule. When the noise disappears, the thinking starts. Across 161 conversations over 16 months, the pattern is consistent: a mind that needs solitude to reach full depth, and reaches it reliably when it gets it.

Strategic Depth
89
Build Velocity
86
Remote Association
81
Integrity Score
89
This is a real profile from a real export. Read the full thing →

Your mind has been
thinking out loud.
Time to see what it says.

Upload your Claude, ChatGPT, Gemini, or Grok export. No content is ever read or stored. Your profile is yours.

Generate your profile

Content never read Metadata only Free to generate