Claude Haiku 5.5 (Xhigh) vs Claude Opus 5.5 (Max, Default Fallback)

What the captured data shows

Claude Haiku 5.5 Xhigh has lower listed rates than Claude Opus 5.5, with a lower intelligence index. Its captured first-token delay is shorter and output throughput higher. The Xhigh setting should remain part of the result, since changing a reasoning setting can change the cost and experience of completing a task.

Which model fits your workflow

Use a fixed set of examples to check whether Xhigh delivers the quality you need at the lower listed rate. Count corrections and repeated runs. The available index does not establish which model is better for a specific coding, legal or scientific workload.

Decision takeaway

Haiku Xhigh trades a lower recorded aggregate index for lower listed cost and favorable captured timing compared with this Opus configuration.

These figures come from Franklin’s Artificial Analysis-sourced model records captured on 2026-10-11. Read the individual model entries for the data snapshot: Claude Haiku 5.5 (Xhigh) and Claude Opus 5.5 (Max, Default Fallback). Missing measurements remain unavailable; this page does not report a new hands-on test.