Anthropic launches Claude Haiku 5.5 with about 75% lower running costs

Anthropic has rolled out Claude Haiku 5.5 on Claude Platform and Claude Code, positioning it as its fastest, cheapest model with about 75% lower running costs than Haiku 4.5. While unremarkable alone, it shines as a subagent for Opus 5.5 and Sonnet 5.5.

2026-10-12 ~ 2026-10-12 · 2 related posts

• Haiku 5.5 costs 75% less than 4.5, but shines only as a subagent under Opus 5.5 — Scobleizer · 2026-10-12
• Anthropic launches Claude Haiku 5.5: fastest, cheapest small model, 75% cost cut — emmanuelvivier · 2026-10-12