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Gemini 3.5 Flash (Google Vertex AI) vs GLM-5.3 Flash (reka-ai)

GLM-5.3 Flash (reka-ai) is cheaper on output tokens, while Gemini 3.5 Flash (Google Vertex AI) offers a larger context window. Choose Gemini 3.5 Flash (Google Vertex AI) or GLM-5.3 Flash (reka-ai) based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecGemini 3.5 Flash (Google Vertex AI)GLM-5.3 Flash (reka-ai)
ProviderLLM GatewayLLM Gateway
Input / 1M tokens$1.50$0.15
Output / 1M tokens$9.00$0.50
Context window1M262K
Parameters——
Open weightsNoYes
ReleasedMay 2026Aug 2026

FAQ

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