GLM 5.2 vs Z.ai: GLM 5.1
Side-by-side comparison. Updated 2026-06-17.
Verdict
GLM 5.2 wins on higher overall score (9.2 vs 9.1, +0.1).
- Larger context window (1048k vs 202k)
At a Glance
| Attribute | GLM 5.2 | Z.ai: GLM 5.1 |
|---|---|---|
| Provider | Z Ai | Z Ai |
| Tags | Intelligent Coding Agentic Long Context | Intelligent Coding Agentic |
| Context | 1,048,576 tokens | 202,752 tokens |
| Input price | $1.40/1M | $0.98/1M |
| Output price | $3.08/1M | $3.08/1M |
| Input modalities | Text | Text |
| Output modalities | Text | Text |
GLM 5.2 Strengths
- 1M-token context window for long-horizon tasks
- Strong agentic and coding capabilities per benchmark data
- Competitive pricing at $1.4/$4.4 per million tokens
- Successor to GLM 5.1 with improved long-context reliability
Z.ai: GLM 5.1 Strengths
- Top-tier coding and long-horizon task completion
- Strong agentic reasoning for multi-step workflows
- Configurable reasoning depth for cost/quality tradeoffs
- Excellent instruction following on complex tasks