LLM Comparison
GLM 5 vs GLM 5.1
Side-by-side specs, pricing & capabilities · Updated September 2026
Price vs Intelligence
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2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | 64 42.4 | 55 27.0 |
| Family | GLM | GLM |
| Status | Current | Current |
| Release Date | Feb 2026 | Apr 2026 |
| Context Window | 203K tokens | 203K tokens |
| Input Price | $0.72/M tokens | $0.95/M tokens |
| Output Price | $2.30/M tokens | $3.15/M tokens |
| Pricing Notes | — | Cache read: $0.4750/M tokens |
| Capabilities | textcode | textcode |
| Max Output | 131K tokens | 66K tokens |
| API Identifier | z-ai/glm-5 | z-ai/glm-5.1 |
| Benchmarks | ||
| GPQA Diamond | 86https://huggingface.co/zai-org/GLM-5 | 86.2https://huggingface.co/zai-org/GLM-5.1 |
| Artificial Analysis Intelligence Index v4.3 | — | 26.4455artificial-analysis |
| SciCode | — | 44.7917artificial-analysis |
| Terminal-Bench 2.1 | — | 61.7978artificial-analysis |
| View GLM 5 | View GLM 5.1 | |
Cost Calculator
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| GLM 5Cheapest | $0.72 | $1.15 | $1.87 | — |
| GLM 5.1 | $0.95 | $1.58 | $2.53 | +35% |
Z.ai
GLM 5
GLM-5 is Z.ai's open-weight language model for agentic engineering, with 744B total and 40B active parameters. Its released checkpoint configuration supports 202,752 token positions; hosted service limits and prices depend on the provider.
Z.ai
GLM 5.1
GLM 5.1 is a large language model from Z.ai. Supports up to 202,752 token context window. Available from $0.95/M input tokens.
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