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Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.

  1. GLM 5.3Z.AIRemove
  2. o4 Mini HighOpenAIRemove
glm-5.3 vs o4-mini-high
AttributeGLM 5.3glm-5.3o4 Mini Higho4-mini-high
Pricing
Input$1.40 / 1M$1.10 / 1M
Output$4.40 / 1M$4.40 / 1M
Cache Write (5m)$1.40 / 1M$1.10 / 1M
Cache Write (1h)$1.40 / 1M$1.10 / 1M
Cache Read$1.40 / 1M$1.10 / 1M
Web Search$0 / 1M$0 / 1M
Context
Max context1M200K
Max outputN/AN/A
Capabilities
VisionNoNo
Function CallingYesNo
JSON ModeYesNo
StreamingYesNo
Catalogue
ProviderZ.AIOpenAI
Categorychatchat
Charge typePay As You GoPay As You Go
Released
Description
SummaryGLM-5.3 is Z.ai's large-scale reasoning model designed for complex software engineering and long-horizon agentic workflows. It supports text input and output with a 1M-token context window, enabling sustained reasoning across large codebases and extended multi-step tasks. Building on GLM-5.2, it delivers stronger coding performance while improving the balance between capability and token efficiency, making it well suited for autonomous coding agents, large-scale engineering workflows, and complex task execution.