The model is probably legitimately better. But it might not be enough better to justify the extra cost of inference.
They know if they released it publicly, people will be able to see exactly how smart it is, and adjust their demand correspondingly. Anthropic will either need to price it high enough that nobody uses it (and the hardware is sitting mostly idle to servicing a few customers), or lower their profit margins (potentially below cost) to price it fairly.
So instead, they bundle it with this fancy new exploit finding scaffold, and sell the combined it to enterprise customers. I bet the scaffold works fine with smaller models, but gets notably improved results with Mythos.
The two products support each-other, and with the exclusive bundle Anthropic can get more profit selling both together than they would get selling them individually.
And as an added bonus, people over estimate the capability of this unreleased model, providing hype for Anthropic.
They know if they released it publicly, people will be able to see exactly how smart it is, and adjust their demand correspondingly. Anthropic will either need to price it high enough that nobody uses it (and the hardware is sitting mostly idle to servicing a few customers), or lower their profit margins (potentially below cost) to price it fairly.
So instead, they bundle it with this fancy new exploit finding scaffold, and sell the combined it to enterprise customers. I bet the scaffold works fine with smaller models, but gets notably improved results with Mythos.
The two products support each-other, and with the exclusive bundle Anthropic can get more profit selling both together than they would get selling them individually.
And as an added bonus, people over estimate the capability of this unreleased model, providing hype for Anthropic.