Build advanced reasoning agents with GLM-4.5-Air, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.13/1M input and $0.85/1M output tokens, native tool calling support, open weights architecture. Access GLM-4.5-Air via the OpenRouter API with up to 98K output tokens.
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GLM-4.5-Air by OpenRouter costs $0.13 per 1M input tokens and $0.85 per 1M output tokens. Cached reads cost $0.03 per 1M tokens.