Is Grok 4.1 Fast (Reasoning) or Kimi-K2.5 cheaper?

Grok 4.1 Fast (Reasoning) is cheaper on output tokens ($0.50 vs $3.00 per 1M).

Which has the larger context window, Grok 4.1 Fast (Reasoning) or Kimi-K2.5?

Grok 4.1 Fast (Reasoning) has the larger context window (2M tokens).

Grok 4.1 Fast (Reasoning) vs Kimi-K2.5

Grok 4.1 Fast (Reasoning) is cheaper on output tokens, while Grok 4.1 Fast (Reasoning) offers a larger context window. Choose Grok 4.1 Fast (Reasoning) or Kimi-K2.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Grok 4.1 Fast (Reasoning)	Kimi-K2.5
Provider	FrogBot	FrogBot
Input / 1M tokens	$0.20	$0.60
Output / 1M tokens	$0.50	$3.00
Context window	2M	256K
Parameters	—	1T
Open weights	No	No
Released	Nov 2025	Jan 1970

Grok 4.1 Fast (Reasoning) details →Kimi-K2.5 details →

FAQ

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