Is Gemini 3.1 Pro Preview or Kimi K2.5 cheaper?

Kimi K2.5 is cheaper on output tokens ($2.80 vs $12.00 per 1M).

Which has the larger context window, Gemini 3.1 Pro Preview or Kimi K2.5?

Gemini 3.1 Pro Preview has the larger context window (1M tokens).

Gemini 3.1 Pro Preview vs Kimi K2.5

Kimi K2.5 is cheaper on output tokens, while Gemini 3.1 Pro Preview offers a larger context window. Choose Gemini 3.1 Pro Preview or Kimi K2.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Gemini 3.1 Pro Preview	Kimi K2.5
Provider	Auriko	Auriko
Input / 1M tokens	$2.00	$0.50
Output / 1M tokens	$12.00	$2.80
Context window	1M	262K
Parameters	—	1T
Open weights	No	Yes
Released	Feb 2026	Jan 2026

Gemini 3.1 Pro Preview 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.