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GLM-5.3 Flash (reka-ai) vs DeepSeek V4 Pro (reka-ai)

GLM-5.3 Flash (reka-ai) is cheaper on output tokens, while DeepSeek V4 Pro (reka-ai) offers a larger context window. Choose GLM-5.3 Flash (reka-ai) or DeepSeek V4 Pro (reka-ai) based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecGLM-5.3 Flash (reka-ai)DeepSeek V4 Pro (reka-ai)
ProviderLLM GatewayLLM Gateway
Input / 1M tokens$0.15$1.20
Output / 1M tokens$0.50$3.30
Context window262K1M
Parameters——
Open weightsYesYes
ReleasedAug 2026Apr 2026

FAQ

Is GLM-5.3 Flash (reka-ai) or DeepSeek V4 Pro (reka-ai) cheaper?

GLM-5.3 Flash (reka-ai) is cheaper on output tokens ($0.50 vs $3.30 per 1M).

Which has the larger context window, GLM-5.3 Flash (reka-ai) or DeepSeek V4 Pro (reka-ai)?

DeepSeek V4 Pro (reka-ai) has the larger context window (1M tokens).

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