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Claude Opus 5.5 released: faster and cheaper
Claude Devs announced Opus 5.5, which matches Fable 5.1 in performance while being about 30% faster and 40% cheaper per task than Opus 5, with Claude Code updates.
Noah Zweben
@noahzwebenArchived 2026.09.24Originally posted 2026.09.23
Noah Zweben @noahzwebenOriginally posted 2026.09.23
RT @ClaudeDevs: Opus 5.5 performs at the level of Fable 5.1. It's ~30% faster and ~40% cheaper than Opus 5 per task. In Claude Code: - 5-h…
x.com/noahzweben/status/2102622700753846483Archived 2026.09.24 11:02