I'm hopeful because Microsoft already has a partnership and owns much of OpenAI so can get their models at cost to host on Azure with they already do, so they can pass on the savings to the user. This is why Opus is 3x as expensive in Copilot, because Microsoft needs to buy API usage from Anthropic directly.
I don’t think it’s API costs. Their Sonnet 4.6 is just 1x premium request which matches the 1x cost of the various GPT Codex models.
Sonnet is the worse model though, therefore it's expected that it is cheaper, the comparison would be Opus and GPT. That Anthropic's worse model is the same request cost as the best OpenAI model is what I mean when talking about Microsoft flexing their partnership.