GLM 4.5 Air Derestricted vs GLM 4.7 Flash Heretic 1.2.0
Side-by-side comparison of VRAM requirements, quantization, context length, and hardware compatibility.
Specifications
| GLM 4.5 Air Derestricted | GLM 4.7 Flash Heretic 1.2.0 | |
|---|---|---|
| Parameters | 110.5B | 29.9B |
| Context | 131K | 203K |
| Architecture | Glm4MoeForCausalLM | Glm4MoeLiteForCausalLM |
| License | MIT | MIT |
| Downloads | 172 | 333 |
| Released | Dec 2025 | Feb 2026 |
VRAM by Quantization: GLM 4.5 Air Derestricted vs GLM 4.7 Flash Heretic 1.2.0
| Quantization | Bits | GLM 4.5 Air Derestricted VRAM | GLM 4.7 Flash Heretic 1.2.0 VRAM |
|---|---|---|---|
| Q2_K | 3.40 | 47.4 GB | 13.8 GB |
| Q3_K_M | 3.90 | 54.3 GB | 15.7 GB |
| Q3_K_S | 3.50 | 48.8 GB | 14.2 GB |
| Q4_0 | 4.00 | 55.7 GB | 16.1 GB |
| Q4_K_M | 4.80 | 66.7 GB | 19.1 GB |
| Q5_K_M | 5.70 | 79.1 GB | 22.4 GB |
| Q6_K | 6.60 | 91.6 GB | 25.8 GB |
| Q8_0 | 8.00 | 110.9 GB | 31.0 GB |
Verdict
GLM 4.7 Flash Heretic 1.2.0 needs less VRAM at Q4_K_M (19.1 GB vs 66.7 GB), so it fits on smaller GPUs. GLM 4.7 Flash Heretic 1.2.0 supports a longer context window (203K tokens). GLM 4.7 Flash Heretic 1.2.0 is the more widely downloaded of the two.
Frequently Asked Questions
- Which needs less VRAM, GLM 4.5 Air Derestricted or GLM 4.7 Flash Heretic 1.2.0?
At Q4_K_M, GLM 4.5 Air Derestricted needs 66.7 GB and GLM 4.7 Flash Heretic 1.2.0 needs 19.1 GB, so GLM 4.7 Flash Heretic 1.2.0 is the lighter option to run locally.
- Which has a longer context window, GLM 4.5 Air Derestricted or GLM 4.7 Flash Heretic 1.2.0?
GLM 4.5 Air Derestricted supports 131,072 tokens and GLM 4.7 Flash Heretic 1.2.0 supports 202,752 tokens.
- What is the difference between GLM 4.5 Air Derestricted and GLM 4.7 Flash Heretic 1.2.0?
GLM 4.5 Air Derestricted is a 110.5B model from ArliAI (GLM family), while GLM 4.7 Flash Heretic 1.2.0 is a 29.9B model from darkc0de (GLM family). Compare their VRAM requirements above to see which fits your GPU or Mac.