Is Kimi K2 Thinking or Claude Opus 4.1 cheaper?

Kimi K2 Thinking is cheaper on output tokens ($2.50 vs $75.00 per 1M).

Which has the larger context window, Kimi K2 Thinking or Claude Opus 4.1?

Kimi K2 Thinking has the larger context window (262K tokens).

Kimi K2 Thinking vs Claude Opus 4.1

Kimi K2 Thinking is cheaper on output tokens, while Kimi K2 Thinking offers a larger context window. Choose Kimi K2 Thinking or Claude Opus 4.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Kimi K2 Thinking	Claude Opus 4.1
Provider	Vertex	Vertex
Input / 1M tokens	$0.60	$15.00
Output / 1M tokens	$2.50	$75.00
Context window	262K	200K
Parameters	1T	—
Open weights	Yes	No
Released	Nov 2025	Aug 2025

Kimi K2 Thinking 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.