Is Kimi-K2.5-fast or Qwen3.5-397B-A17B cheaper?

Kimi-K2.5-fast is cheaper on output tokens ($2.50 vs $3.60 per 1M).

Which has the larger context window, Kimi-K2.5-fast or Qwen3.5-397B-A17B?

Qwen3.5-397B-A17B has the larger context window (262K tokens).

Kimi-K2.5-fast vs Qwen3.5-397B-A17B

Kimi-K2.5-fast is cheaper on output tokens, while Qwen3.5-397B-A17B offers a larger context window. Choose Kimi-K2.5-fast or Qwen3.5-397B-A17B 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-A17B
Provider	Nebius Token Factory	Nebius Token Factory
Input / 1M tokens	$0.50	$0.60
Output / 1M tokens	$2.50	$3.60
Context window	256K	262K
Parameters	—	397B
Open weights	Yes	Yes
Released	Dec 2025	Jul 2025

Kimi-K2.5-fast details →Qwen3.5-397B-A17B details →

FAQ

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