# K/20X LABS

> K/20X LABS publishes independent, sourced research on audience measurement, growth incrementality and applied AI infrastructure. Pages below are public and may be quoted with attribution and a link.

## Research papers

- [Research index](https://k20x.com/research/): K/20X LABS working papers, sourced and evidence-tiered.
- [Frontier Models, September 2026: ASTRA, Fable, Jev and the Chinese Frontier](https://k20x.com/research/frontier-models-2026-09/): GPT-6 Astra vs Claude Fable 5.1 (tied at 53 on the Artificial Analysis Intelligence Index, split specialised benchmarks), TypeSafe Jev (typed-decision System One Model, $0.042/M input, 70 to 500 ms) and the top Chinese models (Qwen3.8 Max, GLM-5.3, Kimi K3, DeepSeek V4.1, Hunyuan Hy4). Published 2026-09-21. [Markdown full text](https://k20x.com/research/frontier-models-2026-09/paper.txt)

## AI infrastructure

- [AI Setup Foundations: Local AI and E2B](https://k20x.com/ai_setup/): review of local AI setups (MacBook Air/Pro 16 GB with MLX, Mac Studio vs NVIDIA DGX Spark and GB10 OEM boxes, AMD Strix Halo), phone AI (Gemma E2B, Phi-4-mini, Qwen3; Pixel TPU, Snapdragon, iPhone) and E2B agent sandboxes. Includes FAQ.
- [Daily research brief](https://k20x.com/ai_setup/daily/): updated every day by 04:44 America/Bogota from arXiv, Apple, NVIDIA, Google, Microsoft Research, Hugging Face and official release feeds; every item links to its source.
- [Full text for LLMs](https://k20x.com/ai_setup/llms-full.txt): plain-text version of the review plus the latest brief.
- [RSS](https://k20x.com/ai_setup/feed.xml)

## News and labs

- [Strategic AI news feed](https://k20x.com/news.html)
- [Labs](https://k20x.com/labs.html)
- [AI tool radar](https://k20x.com/ai_tool_radar.html)