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Kimi K3 Eco vs Kimi K2.5 (Lightning)

Kimi K2.5 (Lightning) is cheaper on output tokens, while Kimi K3 Eco offers a larger context window. Choose Kimi K3 Eco or Kimi K2.5 (Lightning) based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecKimi K3 EcoKimi K2.5 (Lightning)
ProviderCrofAICrofAI
Input / 1M tokens$1.00$1.00
Output / 1M tokens$4.00$3.00
Context window1M131K
Parameters——
Open weightsYesYes
ReleasedJul 2026Feb 2026

FAQ

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