Is Kimi K2.5 Fast or Qwen3.5 397B Fast cheaper?

Kimi K2.5 Fast is cheaper on output tokens ($2.59 vs $4.14 per 1M).

Which has the larger context window, Kimi K2.5 Fast or Qwen3.5 397B Fast?

Both models offer a similar context window.

Kimi K2.5 Fast vs Qwen3.5 397B Fast

Kimi K2.5 Fast is cheaper on output tokens. Choose Kimi K2.5 Fast or Qwen3.5 397B Fast based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Kimi K2.5 Fast	Qwen3.5 397B Fast
Provider	Neuralwatt	Neuralwatt
Input / 1M tokens	$0.52	$0.69
Output / 1M tokens	$2.59	$4.14
Context window	262K	262K
Parameters	—	—
Open weights	Yes	Yes
Released	Jan 2026	Feb 2026

Kimi K2.5 Fast details →Qwen3.5 397B Fast details →

FAQ

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