Is Seed 1.6 (250915) (ByteDance) or GLM-5.3 Flash (reka-ai) cheaper?

GLM-5.3 Flash (reka-ai) is cheaper on output tokens ($0.50 vs $2.00 per 1M).

Which has the larger context window, Seed 1.6 (250915) (ByteDance) or GLM-5.3 Flash (reka-ai)?

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

Seed 1.6 (250915) (ByteDance) 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 Seed 1.6 (250915) (ByteDance) 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	Seed 1.6 (250915) (ByteDance)	GLM-5.3 Flash (reka-ai)
Provider	LLM Gateway	LLM Gateway
Input / 1M tokens	$0.25	$0.15
Output / 1M tokens	$2.00	$0.50
Context window	256K	262K
Parameters	—	—
Open weights	No	Yes
Released	Sep 2025	Aug 2026

Seed 1.6 (250915) (ByteDance) 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.