Z.ai: GLM 5.3

Z-AI Developer Architecture Profile

OpenRouter ↗HuggingFace ↗

Intelligence (ELO)1440Chatbot Arena Verified

Max Context Limit1,048,576Max Out: 131,072 tokens

Prompt Caching90% OFF$0.14 / 1M cached

Standard API / 1M$5.80🧠 Deep Reasoner

Model Capabilities & Contract SLAs

Reasoning
Coding & Logic
Fictional
🧠 Extended Test-Time Reasoning

GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves...

Granular Pricing Matrix

Input Tokens (Standard Prompt)$1.40 / 1M

⚡ Cached Input (Prompt Cache Read)90% OFF$0.14 / 1M

Output Tokens (Completion)$4.40 / 1M

Pricing data via OpenRouter. Sync: 10/2/2026

Evaluate Competitors

VS Engine MatchupZ.ai: GLM 5.3 vs OpenAI: GPT-6.1 Sol VS Engine MatchupZ.ai: GLM 5.3 vs OpenAI: GPT Terra Latest VS Engine MatchupZ.ai: GLM 5.3 vs IBM: Granite 4.2 8B VS Engine MatchupZ.ai: GLM 5.3 vs Z.ai: GLM 5.3 Flash (batch)VS Engine MatchupZ.ai: GLM 5.3 vs Cohere: North Mini Code (free)VS Engine MatchupZ.ai: GLM 5.3 vs Z.ai: GLM 4.7 Flash