Z.ai model
GLM 5.3 Flash
GLM 5.3 Flash is a Z.ai model tracked in Sim. It supports a 1M token context window. Pricing starts at $0.15/1M input tokens and $0.5/1M output tokens. Key capabilities include Temperature 0-1, Tool choice, Structured outputs. Best for reasoning-heavy tasks that need more deliberate model control.
Input price$0.15/1M
Cached input$0.03/1M
Output price$0.5/1M
Context window1M
Max output131k tokens
ProviderZ.ai
UpdatedOct 7, 2026
Best forBest for reasoning-heavy tasks that need more deliberate model control.
Temperature0 to 1
Reasoning effortlow, high, max
VerbosityNot supported
Thinking levelsNot supported
Structured outputsSupported
Tool choiceSupported
Computer useNot supported
Deep researchNot supported
Memory supportSupported
Max output tokens131k
Frequently asked questions
GLM 5.3 Flash is a Z.ai model available in Sim. GLM 5.3 Flash is a Z.ai model tracked in Sim. It supports a 1M token context window. Pricing starts at $0.15/1M input tokens and $0.5/1M output tokens. Key capabilities include Temperature 0-1, Tool choice, Structured outputs.
