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GPT-5 Nano vs GLM 4.5

GPT-5 Nano is cheaper on output tokens, while GPT-5 Nano offers a larger context window. Choose GPT-5 Nano or GLM 4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecGPT-5 NanoGLM 4.5
ProviderVercel AI GatewayVercel AI Gateway
Input / 1M tokens$0.05$0.60
Output / 1M tokens$0.40$2.20
Context window400K128K
Parameters355B
Open weightsNoYes
ReleasedAug 2025Jul 2025

FAQ

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