Are you worried that the price for enterprises would be higher or lower than the $12.11 I quoted?

I'll grant that it could be lower if enterprises negotiate bulk discounts, though the stories I've seen suggest that's not happening, for example this one: https://www.theinformation.com/articles/anthropic-changes-pr...

I think higher prices are very unlikely. Do you think I'm wrong about that?

There are a couple of documented ways you could pay more. Anthropic charge 10% extra for "US-only inference" https://platform.claude.com/docs/en/about-claude/pricing#dat... - and you can also pay more for "fast mode", though I don't see a quoted price for Fable for that yet (just prices for Opus): https://platform.claude.com/docs/en/about-claude/pricing#fas...