Build advanced reasoning agents with GLM-5.1, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $1.36/1M input and $4.27/1M output tokens, native tool calling support, open weights architecture. Access GLM-5.1 via the Charm Hyper API with up to 3K output tokens.
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GLM-5.1 by Charm Hyper costs $1.36 per 1M input tokens and $4.27 per 1M output tokens. Cached reads cost $0.68 per 1M tokens.