Trelis Research

Live experiments and interactive results.

Fresh BPB: Pretraining Quality on Data Models Can't Have Seen

Ten frontier open models scored on compression (bits per byte) of provably human-written text and code published after their training cutoffs — parliamentary speech, AI-ban open-source commits, and undisclosed canary slices. Includes the GPT-OSS anomaly and a code-model regression.

July 2026 · 10 models · 5 fresh data slices · exact logprob BPB

LLM Valuation Forecasts by Knowledge Cutoff

Models with knowledge cutoffs from Sep 2021 to Feb 2026 forecast valuations of OpenAI, Anthropic, NVIDIA, Alphabet and Meta — versus what actually happened. Plus: why point estimates mislead, hindsight calibration, and what tail shapes LLMs actually believe in.

July 2026 · 26 models · 2,500+ forecasts