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I'm the guy you replied to, apologies for using a different account I'm away from my computer now.

The distinction to me is that Anthropic gives access to that model but doesn't give control. They reserve the right to cut you off if they don't like what you are doing and require you allow data retention for Fable and Mythos to ensure your are not up to any skullduggery.

Meta, Alibaba, Mistral, even OpenAI has released models users can run locally and fully control. That is a whole world of difference.

They gave access, but considering that they wouldn't even sign the "don't ban open weights" letter, it's clear they would prefer to have tight control over who they bless with that access.

They gave a few of the largest companies access to mythos.

Half a year later, it is still not available to everyone else.

This would be more convincing if mythos was something uniquely special and not something merely a couple months ahead of everyone else. It was great marketing though.