Is GLM-4.6 (NovitaAI) or GLM-5.3 Flash (reka-ai) cheaper?

GLM-5.3 Flash (reka-ai) is cheaper on output tokens ($0.50 vs $2.20 per 1M).

Which has the larger context window, GLM-4.6 (NovitaAI) or GLM-5.3 Flash (reka-ai)?

GLM-5.3 Flash (reka-ai) has the larger context window (262K tokens).

GLM-4.6 (NovitaAI) vs GLM-5.3 Flash (reka-ai)

GLM-5.3 Flash (reka-ai) is cheaper on output tokens, while GLM-5.3 Flash (reka-ai) offers a larger context window. Choose GLM-4.6 (NovitaAI) or GLM-5.3 Flash (reka-ai) based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM-4.6 (NovitaAI)	GLM-5.3 Flash (reka-ai)
Provider	LLM Gateway	LLM Gateway
Input / 1M tokens	$0.55	$0.15
Output / 1M tokens	$2.20	$0.50
Context window	205K	262K
Parameters	—	—
Open weights	Yes	Yes
Released	Sep 2025	Aug 2026

GLM-4.6 (NovitaAI) details →GLM-5.3 Flash (reka-ai) details →

FAQ

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