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Synthetic

GLM-5.3-Flash model ID, context window & pricing

glm

Quick facts

Model ID hf:zai-org/GLM-5.3-Flash
Source Synthetic
Context Window 524288
Pricing $0.15 input / $0.50 output per 1M tokens
Capabilities tool calling, reasoning, structured output, temperature control, open weights

Model overview

GLM-5.3-Flash is an AI model from Synthetic with 524288 token context window and text, image input support.

Published pricing is $0.15 input and $0.50 output per 1M tokens.

  • Workloads that use text, image inputs with text outputs.
  • Agent and tool workflows that need function calling.
  • Reasoning-heavy prompts where stepwise problem solving matters.
Model ID hf:zai-org/GLM-5.3-Flash
Provider Synthetic
Family glm
Status -
Knowledge Cutoff -
Release Date 2026-08-26
Input Modalities text, image
Output Modalities text
Context Window 524288
Input Limit -
Output Limit 65536
Tool Calling Yes
Reasoning Yes
Structured Output Yes
Temperature Control Yes
Open Weights Yes
Input Cost / 1M tokens $0.15
Output Cost / 1M tokens $0.50
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens $0.04
Cache Write Cost / 1M tokens -