Is stepfun-ai/Step-3.5-Flash or moonshotai/Kimi-K2.5 cheaper?

stepfun-ai/Step-3.5-Flash is cheaper on output tokens ($0.30 vs $2.25 per 1M).

Which has the larger context window, stepfun-ai/Step-3.5-Flash or moonshotai/Kimi-K2.5?

Both models offer a similar context window.

stepfun-ai/Step-3.5-Flash vs moonshotai/Kimi-K2.5

stepfun-ai/Step-3.5-Flash is cheaper on output tokens. Choose stepfun-ai/Step-3.5-Flash or moonshotai/Kimi-K2.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	stepfun-ai/Step-3.5-Flash	moonshotai/Kimi-K2.5
Provider	SiliconFlow	SiliconFlow
Input / 1M tokens	$0.10	$0.45
Output / 1M tokens	$0.30	$2.25
Context window	262K	262K
Parameters	—	1T
Open weights	No	Yes
Released	Feb 2026	Jan 2026

stepfun-ai/Step-3.5-Flash details →moonshotai/Kimi-K2.5 details →

FAQ

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