Is Claude Haiku 3.5 or Claude Opus 4.1 cheaper?

Claude Haiku 3.5 is cheaper on output tokens ($4.00 vs $75.00 per 1M).

Which has the larger context window, Claude Haiku 3.5 or Claude Opus 4.1?

Both models offer a similar context window.

Claude Haiku 3.5 vs Claude Opus 4.1

Claude Haiku 3.5 is cheaper on output tokens. Choose Claude Haiku 3.5 or Claude Opus 4.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Claude Haiku 3.5	Claude Opus 4.1
Provider	Vertex	Vertex
Input / 1M tokens	$0.80	$15.00
Output / 1M tokens	$4.00	$75.00
Context window	200K	200K
Parameters	—	—
Open weights	No	No
Released	Oct 2024	Aug 2025

Claude Haiku 3.5 details →Claude Opus 4.1 details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.