Z.AI
Ultra-low latency version of GLM-5.3-Flash engineered for high-concurrency real-time IDE code completion and interactive agents.
200K ctx$0.37 / 1M tok (Ultra-Low Latency MoE)
Introducing GLM-4.6Z.AIReleased September 30, 2025
GLM-4.6
Flagship coding model leading Chinese programming benchmarks with 200k context and 64k maximum output tokens.
reasoning-llmProprietary API$0.60 / 1M tok (China Coding Leader)Context: 200K (200,000 tokens)Arena ELO: 1340
Technical Specifications
Architecture Type
Flagship Coding Transformer
Total Parameters
Frontier Scale
Context Window
200K (200,000 tokens)
Max Output Tokens
64K (64,000 tokens)
Knowledge Cutoff
August 2025
Supported Modalities
text, code, reasoning
License & Access
Z.AI Terms of Service
Benchmark Evaluations
Mmlu Pro
76.5
Humaneval
90.2
Swe Bench Lite
48.6
Chatbot Arena ELO
1340
Deep Architectural Overview
GLM-4.6 brought substantial improvements in multi-turn software refactoring, unit test creation, and full-stack web development. It expanded the context window to 200k tokens and unlocked 64k output buffers.
Strengths & Considerations
Core Strengths
- Leading coding benchmarks in the Asian LLM landscape
- 200,000 token context and 64k output window
- Strong adherence to linting and framework conventions
Known Limitations
- Succeeded by GLM-4.7 for autonomous agentic loops
Token & API Pricing
Input Tokens (1M)$0.60
Output Tokens (1M)$2.20
Cached Input (1M)$0.1100
Pricing is verified directly against Z.AI's developer documentation and API rate sheets.
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