GLM 5.2 vs Claude 4.5 Sonnet

Detailed comparison of capabilities, features, and performance.

GLM 5.2

GLM 5.2

Z.ai
VS
Claude 4.5 Sonnet

Claude 4.5 Sonnet

Anthropic
Feature GLM 5.2 Claude 4.5 Sonnet
AI Lab Z.ai Anthropic
Context Size 1,000,000 tokens 1,000,000 tokens
Max Output Size 131,072 tokens 64,000 tokens
Frontier Model Yes Yes
Vision Support No Yes
Description GLM-5.2 introduces a robust 1M-token context and advanced, multi-effort coding capabilities to significantly enhance performance on long-horizon tasks. Its new IndexShare architecture and improved MTP layer simultaneously boost efficiency by reducing per-token FLOPs and increasing speculative decoding lengths. 743B parameter MoE. The latest Claude 4.5 Sonnet model from Anthropic with a 1M token context window.

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