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Kimi K2 (07/11) vs OpenAI GPT-5 Nano

OpenAI GPT-5 Nano is cheaper on output tokens, while OpenAI GPT-5 Nano offers a larger context window. Choose Kimi K2 (07/11) or OpenAI GPT-5 Nano based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecKimi K2 (07/11)OpenAI GPT-5 Nano
ProviderHeliconeHelicone
Input / 1M tokens$0.57$0.05
Output / 1M tokens$2.30$0.40
Context window131K400K
Parameters
Open weightsNoNo
ReleasedJan 2025Jan 2025

FAQ

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