Claude Haiku 5

The volume tier of the Claude 5 family, released September 17, 2026 — six weeks after Fable 5.1/Mythos 5.1 and the first Haiku at the 5-series capability level. $1/$5 per Mtok makes it a fifth of Sonnet 5's price for roughly 85-90% of its benchmark profile, which Anthropic itself frames as the high-volume-agent play. The launch table leans on the established suite (no DeepSWE or OSWorld 2.0 rows) and notably does NOT repeat the 'best in class' framing Anthropic used for Opus 5 — the numbers are honest for a small tier. 500K context (vs. the family's usual 1M) is the clearest architectural tell.