Most commenters here: "Mythos is powerful because you can point it at a whole codebase, if you point the smaller models at a whole codebase and iterate through small sections of code, you'll get too many false-positives to handle."
This misses the point entirely. You pay $20k as a one-time fee to establish a baseline. Your codebase develops one PR at a time, which... updates isolated sections of code. Which means you don't need Mythos for a PR, just small, open-weight models. Maybe you run Mythos once a year to ensure that you keep your baseline updated and reduce the risk that the open-weights models missed anything.
Seeing this as anything but a huge win for open-weights models and a huge loss for Anthropic misses the point entirely. Mythos isn't something you can persuade Fortune 500 companies to spend $20k/day or even $20k/week to spend on, like they were hoping for. $20k/year is a lot less valuable, and it won't justify development costs or Anthropic's growth multiple.
This misses the point entirely. You pay $20k as a one-time fee to establish a baseline. Your codebase develops one PR at a time, which... updates isolated sections of code. Which means you don't need Mythos for a PR, just small, open-weight models. Maybe you run Mythos once a year to ensure that you keep your baseline updated and reduce the risk that the open-weights models missed anything.
Seeing this as anything but a huge win for open-weights models and a huge loss for Anthropic misses the point entirely. Mythos isn't something you can persuade Fortune 500 companies to spend $20k/day or even $20k/week to spend on, like they were hoping for. $20k/year is a lot less valuable, and it won't justify development costs or Anthropic's growth multiple.