[jsharf]

I want to also mention that the previous model was 3.7. 3.7 to 4 is not an entire increment, it’s theoretically the same as 3 -> 3.3, which is actually modest compared to the capability jump I’ve observed. I do think Anthropic wants more frequent, continuous releases, and using a numeric version number rather than a software version number is their intent. Gradual releases give society more time to react.

[rst]

The numbers are branding, not metrics on anything. You can't do math to, say, determine the capability jump between GPT-4 and GPT-4o. Trying to do math to determine capability gaps between "3.7" and "4.0" doesn't actually make more sense.