GLM-5.3 is Zhipu's latest flagship model with major advances in complex software engineering and agent tasks. It shares the same base model as GLM-5.2, with all gains from post-training: 50% coding improvement and emergent cybersecurity / vulnerability-discovery capability. 1M context, 128K output, always-on thinking.

Capabilities

1M context window; 128K max output; thinking mode (always on, reasoning_effort: low/high/max); Function Calling; streaming; context caching; structured output (JSON mode); complex software engineering and terminal operation; cybersecurity / vulnerability discovery.

Use Cases

Complex code engineering; multi-step agent tasks; long-horizon terminal operation; codebase analysis; vulnerability discovery and security testing; enterprise knowledge base.

Limitations

Text-only (no vision/image input); thinking cannot be disabled; model API not yet live; some capabilities China-only.

Examples

Claude Code

Anthropic official CLI coding agent. Multi-file edits, tool use, long-context reasoning.

Terminal

export ANTHROPIC_AUTH_TOKEN="YOUR_API_KEY"
export ANTHROPIC_BASE_URL="https://api.robovai.com"
export ANTHROPIC_MODEL="glm-5.3"
claude --dangerously-skip-permissions

Context Window

1M ctx

Thinking Mode

Overview

Zhipu's latest flagship GLM-5.3, with major advances in complex software engineering and agent tasks. Same base model as GLM-5.2, all gains from post-training: 50% coding improvement and emergent cybersecurity / vulnerability-discovery capability. 1M context, 128K output, always-on thinking (reasoning_effort: low/high/max).

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Zhipu

GLM-5.3 - RoboVAI - RoboVAI

$1.19/M$1.07/M10% OFF

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