Argon has been publicly available for weeks to Ultra users.
Anthropic has been doing this with Mythos for quite some time...
Anthropic has been doing this with Mythos for quite some time...
I don't understand why HN is so surprised to have an announcement for model existence and a follow-up announcement for model availability. It's really not that unusual, as you say Anthropic has done the same, probably others too (though I can't remember)