Stagehand
@Stagehanddev
During early testing on our Browser Agent Evals, Opus 5.5 completely crushed it's predecessor Opus 5, but also Fable 5.1 & 5 in accuracy, speed, and, cost.
Compared to Opus 5 in the Claude Code harness it's roughly 5x cheaper per task, and 2x faster.
Compared to Opus 5 in the Claude Code harness it's roughly 5x cheaper per task, and 2x faster.
Claude@claudeai · Sep 22Introducing Claude Opus 5.5, the first model in our new Claude 5.5 family.
It performs at the level of Claude Fable 5.1 for most tasks, and costs 40% less to run than Opus 5.
It performs at the level of Claude Fable 5.1 for most tasks, and costs 40% less to run than Opus 5.
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