Historical brief · 2026-11-12

GLM-5.3 Now Running on SambaCloud with High Token Speed

According to SambaNova: Z.ai's flagship agentic model, GLM-5.3, is now available on SambaCloud running at over 200 tokens per second. Built for long-horizon software engineering and multi-step tasks, the model achieves state-of-the-art results among open-weight options on Terminal-Bench 3.0 while using fewer output tokens than several closed models.

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According to SambaNova:

Background

Z.ai launched GLM-5.3 as its flagship model specifically designed for complex software engineering and long-horizon agent workflows. It is trained to handle multi-day engineering tasks in real codebases and enterprise systems without requiring users to break down every step manually.

Key Details

According to Z.ai, GLM-5.3 scores 28.3 on Terminal-Bench 3.0 and 66.9 on DeepSWE v1.1, leading open-weight models while maintaining high token efficiency. On internal tests, it reaches 31.4% using about 50K output tokens per task. Additionally, it features strong defensive security capabilities, holding top scores on the CyberGym vulnerability-discovery benchmark.

Industry Impact

The model is now running on SambaCloud at speeds exceeding 200 tokens/s, which helps reduce latency for multi-turn agent loops where context grows rapidly. Major agent harnesses like Claude Code and Strix are already routing significant traffic to it, bridging frontier agent capabilities with production speed.

View selection rationale
Official releaseStage not established

Importance 77/100

Signal80Structure75Consequence75Confidence86Momentum80
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SambaNova ↗
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Polyemergence Editorial Desk · PolyEmergence Pte Ltd.
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