GLM 4.5 Air vs GLM 4.6
Side-by-side comparison of VRAM requirements, quantization, context length, and hardware compatibility.
Specifications
| GLM 4.5 Air | GLM 4.6 | |
|---|---|---|
| Parameters | 110.5B | 356.8B |
| Context | 131K | 203K |
| Architecture | Glm4MoeForCausalLM | Glm4MoeForCausalLM |
| License | MIT | MIT |
| Downloads | 359.8K | 15.0K |
| Released | Aug 2025 | Sep 2025 |
VRAM by Quantization: GLM 4.5 Air vs GLM 4.6
| Quantization | Bits | GLM 4.5 Air VRAM | GLM 4.6 VRAM |
|---|---|---|---|
| Q2_K | 3.40 | 47.4 GB | 152.3 GB |
| Q3_K_M | 3.90 | 54.3 GB | 174.6 GB |
| Q3_K_S | 3.50 | 48.8 GB | 156.7 GB |
| Q4_0 | 4.00 | 55.7 GB | 179.0 GB |
| Q4_K_M | 4.80 | 66.7 GB | 214.7 GB |
| Q5_K_M | 5.70 | 79.1 GB | 254.8 GB |
| Q6_K | 6.60 | 91.6 GB | 295.0 GB |
| Q8_0 | 8.00 | 110.9 GB | 357.4 GB |
Verdict
GLM 4.5 Air needs less VRAM at Q4_K_M (66.7 GB vs 214.7 GB), so it fits on smaller GPUs. GLM 4.6 supports a longer context window (203K tokens). GLM 4.5 Air is the more widely downloaded of the two.
Frequently Asked Questions
- Which needs less VRAM, GLM 4.5 Air or GLM 4.6?
At Q4_K_M, GLM 4.5 Air needs 66.7 GB and GLM 4.6 needs 214.7 GB, so GLM 4.5 Air is the lighter option to run locally.
- Which has a longer context window, GLM 4.5 Air or GLM 4.6?
GLM 4.5 Air supports 131,072 tokens and GLM 4.6 supports 202,752 tokens.
- What is the difference between GLM 4.5 Air and GLM 4.6?
GLM 4.5 Air is a 110.5B model from zai-org (GLM family), while GLM 4.6 is a 356.8B model from zai-org (GLM family). Compare their VRAM requirements above to see which fits your GPU or Mac.