How Every AI Model Writes: A Stylometric Comparison
February 17, 2026
We analyzed 320 samples across Claude, GPT, and Gemini to measure 6 dimensions of writing style. Here's what the data reveals about each AI model's personality.
ResearchAI Writing
Insights on AI writing, voice capture, and building your digital twin.
February 17, 2026
We analyzed 320 samples across Claude, GPT, and Gemini to measure 6 dimensions of writing style. Here's what the data reveals about each AI model's personality.
February 17, 2026
We measured GPT-5.2, Claude Sonnet 4.5, and Gemini 3 Pro across 6 writing style dimensions using 320 samples. See which AI writes most like you in 2026.
February 17, 2026
We ran the same prompts through Claude Opus, Claude Sonnet, Claude Haiku, GPT-5.2, and Gemini 3 Pro, then measured 6 dimensions of writing style. The results surprised us.
February 17, 2026
Our data from 320 samples across 4 languages reveals dramatic AI stylometric differences. Japanese expressiveness hits 100; French conciseness drops to 32.
February 17, 2026
We compared GPT-5.2, Claude, and Gemini across English, French, Spanish, and Japanese. The best AI model depends on your language.
February 17, 2026
We measured 320 AI writing samples across 5 models and 6 style dimensions. The data reveals exactly why every AI sounds the same — and it's not your prompting.
February 17, 2026
We profiled 5 AI models like human writers. Claude, GPT, and Gemini each have a measurable writing personality — and none of them match yours.
February 15, 2026
Your Writing DNA radar chart compares you to 'Average AI.' Here's exactly how we measured that baseline — 320 samples, 5 models, 4 languages, and the computational stylometry behind every axis.
February 5, 2026
AI output feels generic because it was optimized to be generic. The problem isn't your prompting — it's RLHF, a training process that averages out every writing style.
January 30, 2026
Master Claude's system prompts and Projects feature to write in your authentic voice. Learn Claude-specific techniques and how to build a Style Profile.
January 18, 2026
A deep dive into AI style guide technology. How we quantify something as qualitative as writing style—and why it works across ChatGPT, Claude, and Gemini.