GLM 5.3 Flash input price cut to $0.0278 per 1M tokens
Z.ai has cut the input price on GLM 5.3 Flash from $0.15 to $0.0278 per 1M tokens, as listed on OpenRouter. Output pricing is unchanged at $0.5 per 1M tokens. The change makes input roughly five times cheaper while leaving generation costs the same.
What it means for a SaaS brand
Cheap input favours long-context, retrieval-heavy workloads, so expect more assistants and agents to pull in large volumes of source pages before answering. Make sure your docs, comparison pages and pricing pages are crawlable and clearly structured, because they are more likely to be read in full rather than skimmed.
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