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Anthropic's fast tier — near-instant, still capable.
Haiku 4.5 trades some depth for speed and cost, but it's sharper than most "fast tier" models — still solid at summarization, tagging, and short-form writing where you're calling it constantly rather than occasionally.
A 300K context window covers most real-world documents without needing to chunk them.
Claude Haiku 4.5 shows its cost before every call and covers you with a hard cap — or call free under an active time pass.