I'd like a concrete list of "frontier labs", but don't want to exclude newcomers. I'll write a list below, but if there are labs that aren't on the list but plausibly could be considered frontier, I'll make a manifold poll and rule based on the markets decision.
Also please comment if you think I've missed one:
OpenAI
Anthropic
Meta
Amazon
DeepMind/Google
DeepSeek
Alibaba (NOTE: this used to say Qwen, but Qwen is the name of the model, not the lab)
Mistral
XAI (Elon musk lab)
Nvidia
Update 2025-02-07 (PST) (AI summary of creator comment): Preprints Included:
Preprints (e.g., arXiv) count as a valid form of releasing a paper.
The focus is on whether the big labs deem that an AI significantly contributed to the paper, rather than on traditional journal criteria.