Percy Liang(@percyliang):I find myself repeatedly explaining the difference between open-weight (DeepSeek), open-source (Olmo), open-development (Marin). Let's see if this restaurant analogy helps: - Open-weight: food is made behind closed doors, server brings you the dish - Open-source: food is made behind closed doors, server brings you the dish and the recipe - Open-development: you see the chef make the dish in the kitchen (and can shout suggestions while its cooking)!

Percy Liang

@percyliang

professor of computer science @Stanford @stanfordnlp, co-founder of @togethercompute, creator of co-founder of @simile_ai, pianist

Joined October 2009

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Percy Liang@percyliang

2026.05.05 17:54

I find myself repeatedly explaining the difference between open-weight (DeepSeek), open-source (Olmo), open-development (Marin). Let's see if this restaurant analogy helps: - Open-weight: food is made behind closed doors, server brings you the dish - Open-source: food is made behind closed doors, server brings you the dish and the recipe - Open-development: you see the chef make the dish in the kitchen (and can shout suggestions while its cooking)!

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