The current publicly accessible line-up of Claude is Fable 5, Opus 4.8, Sonnet 5, and Haiku 4.5, as seen on https://platform.claude.com/docs/en/about-claude/models/overview.

Which tier will be the next to have a model publicly released? By publicly released, I mean Anthropic must announce the public release and the average American can access it just by making an account and spending money. If multiple models are released simultaneously, each option will resolve to 100% times how many of the released models are of that tier. If Anthropic "rereleases" an old model, I will either ignore that or resolve this N/A and create a new market.