Cognitive vital signs
next to every response.
A browser extension that overlays styxx cognometric scores on every reply from chatgpt.com, claude.ai, gemini.google.com, and grok.com. See the sycophancy, the drift, the hallucination — in real time, as the model writes.
Sits next to the chat. Reads the response. Scores it live.
PRIVATE
All scoring is local
Pyodide runs styxx in your browser. The text never leaves your machine. No telemetry, no API calls.
PASSIVE
No setup per chat
Install once. Scores appear automatically next to every response on supported sites.
OPEN
Source-readable
The extension is MIT-licensed. Read the source, audit the scoring, build your own fork.
Frontier chat surfaces.
| site | support | note |
|---|---|---|
| chatgpt.com | full | 9-instrument fingerprint per response |
| claude.ai | full | 9-instrument fingerprint per response |
| gemini.google.com | full | 9-instrument fingerprint per response |
| grok.com | partial | 7 of 9 instruments (multi-turn pending) |
| perplexity.ai | partial | citation-aware variants in progress |
New surface support shipped per minor version. Submit a request via github issues.
Install in your browser.
Free. MIT-licensed. Cognometric vitals on every AI conversation you have.
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