GLM 5.3 Flashx

GLM 5.3 Flashx is a Z.ai model available in Sim. GLM 5.3 Flashx is a Z.ai model tracked in Sim. It supports a 1M token context window. Pricing starts at $0.37/1M input tokens and $1.25/1M output tokens. Key capabilities include Temperature 0-1, Tool choice, Structured outputs.

GLM 5.3 Flashx starts at $0.37/1M input tokens, $0.075/1M cached input tokens, and $1.25/1M output tokens.

GLM 5.3 Flashx supports a context window of 1M tokens in Sim. In an agent, this determines how much conversation history, tool outputs, and retrieved documents the model can hold in a single call.

GLM 5.3 Flashx supports the following capabilities in Sim: Temperature 0-1, Tool choice, Structured outputs, Reasoning low, high, max, Max output 131k.

Best for reasoning-heavy tasks that need more deliberate model control. When used in a Sim workflow, it can be selected in any Agent block from the model picker.