Weekly AI Index: 903 Items Tracked from September 7 to September 13, 2026

The week's data is distributed across four primary sections: community, research, news, and models. The community section contained the largest volume with 396 items, followed by research with 352 items. The news section included 133 items, while the models section accounted for 22 items.

Hacker News (AI) was the most frequent source with 396 items. arXiv AI Papers followed with 352 items. Other significant sources included TechCrunch AI with 48 items, The Verge AI with 29 items, and the AWS Machine Learning Blog with 26 items. Hugging Face New Models contributed 22 items, while OpenAI News provided 20 items. Mistral AI News recorded 4 items, the Hugging Face Blog recorded 3 items, and the Google DeepMind Blog recorded 1 item.

On Hacker News (AI), the most engaged thread was OpenAI’s Navier-Stokes release included a Lean 4 formal proof, which received 102 points and 84 comments. This was followed by AI Responsibility – OpenAI and Anthropic with 75 points and 22 comments. The thread Show HN: Jigsaw Haiku reached 62 points and 20 comments.

Other notable discussions included On the Navier–Stokes Millennium Prize Problem with 20 points and 1 comment, and Kimi K3 (2.8T) at 1 token/s on a MacBook Pro, streamed from four SSDs with 16 points and 6 comments. The threads ex-OpenAI Researcher Quits Anthropic over AI Safety Fears and bzip3 both reached 16 points, while OpenAI might have stolen another major proof reached 14 points.

Among the 22 new models indexed, black-forest-labs/FLUX.1-dev received the highest engagement with 14565 likes. TokenRhythm/NeoHorse-1-4B followed with 770 likes. The model nex-agi/Nex-N2.5-mini recorded 164 likes, while deepseek-ai/DeepSeek-V4.1-Flash recorded 160 likes.

Additional model engagement included nex-agi/Nex-N2.5-Pro with 128 likes and dealignai/DeepSeek-V4.1-Flash-UNCENSORED-FP8 with 88 likes.