Z.ai releases GLM-5.3, an update to its model series, with improved coding capabilities (50% gain over GLM-5.2 on Z.ai Code Bench) and emergent cybersecurity capabilities matching Mythos 5 in white-box code review and vulnerability discovery (identified 2,436 vulnerabilities on real-world targets).
GLM 5.3, a 753B MoE model, is now available on Amazon Bedrock with managed APIs.
Amazon16 days agoGLM 5.3 now available via Agent API and Router API with pricing
Perplexity28 AugGLM-5.3 (Max) · 1,481 (1,476–1,486) · 24,035 votes
GLM-5.3 · 1,481 (1,476–1,486) · 26th
GLM-5.3 · 1,481 · $0.41 per 1M tokens
GLM-5.3 · 1,481 · $0.41 per 1M tokens
LMArena, CC BY 4.0, 20 October 2026 · prices OpenRouter, list price blended 3:1, read 22 October 2026 · Artificial Analysis, read 22 October 2026