Build advanced reasoning agents with GLM 5.1, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers available completely free of charge, native tool calling support. Access GLM 5.1 via the Umans AI Coding Plan API with up to 131K output tokens.
Tokens
Tokens
Tokens
GLM 5.1 by Umans AI Coding Plan costs Free per 1M input tokens and Free per 1M output tokens. Cached reads cost Free per 1M tokens. Cache writes cost Free per 1M tokens.