Contrary to the other reply, I'm going to say yes, that's exactly what it means. For Github Copilot users with annual plans that are grandfathered in to per-prompt rather than per-token pricing, Github is increasing the cost of Sonnet from 1 "premium request" per Sonnet prompt to 9, thus meaning that those users will be able to submit 1/9th the number of prompts per month before incurring additional usage charges. For all practical purposes, this is a straightforward 9x increase in price.

Not quite. Premium models have different type of multipliers applied. The multiplier decides how many PRUs (premium request units or tokens) are used. These PRUs are replaced with different units with this announcement but the methodology remains the same: https://docs.github.com/en/copilot/concepts/billing/copilot-...

Sometimes the multiplier increase is significant like for Claude Opus 4.6 from 3x to 27x (https://docs.github.com/en/copilot/reference/copilot-billing...), meaning using that model will use up a lot more „tokens“ (whatever the new word for it is)