GLM 4.7 Flash Heretic 1.2.0 vs GLM 4.7
Side-by-side comparison of VRAM requirements, quantization, context length, and hardware compatibility.
Specifications
| GLM 4.7 Flash Heretic 1.2.0 | GLM 4.7 | |
|---|---|---|
| Parameters | 29.9B | 358.3B |
| Context | 203K | 203K |
| Architecture | Glm4MoeLiteForCausalLM | Glm4MoeForCausalLM |
| License | MIT | MIT |
| Downloads | 333 | 66.2K |
| Released | Feb 2026 | Jan 2026 |
VRAM by Quantization: GLM 4.7 Flash Heretic 1.2.0 vs GLM 4.7
| Quantization | Bits | GLM 4.7 Flash Heretic 1.2.0 VRAM | GLM 4.7 VRAM |
|---|---|---|---|
| Q2_K | 3.40 | 13.8 GB | 152.9 GB |
| Q3_K_M | 3.90 | 15.7 GB | 175.3 GB |
| Q3_K_S | 3.50 | 14.2 GB | 157.4 GB |
| Q4_0 | 4.00 | 16.1 GB | 179.8 GB |
| Q4_K_M | 4.80 | 19.1 GB | 215.6 GB |
| Q5_K_M | 5.70 | 22.4 GB | 255.9 GB |
| Q6_K | 6.60 | 25.8 GB | 296.3 GB |
| Q8_0 | 8.00 | 31.0 GB | 359.0 GB |
Verdict
GLM 4.7 Flash Heretic 1.2.0 needs less VRAM at Q4_K_M (19.1 GB vs 215.6 GB), so it fits on smaller GPUs. GLM 4.7 is the more widely downloaded of the two.
Frequently Asked Questions
- Which needs less VRAM, GLM 4.7 Flash Heretic 1.2.0 or GLM 4.7?
At Q4_K_M, GLM 4.7 Flash Heretic 1.2.0 needs 19.1 GB and GLM 4.7 needs 215.6 GB, so GLM 4.7 Flash Heretic 1.2.0 is the lighter option to run locally.
- Which has a longer context window, GLM 4.7 Flash Heretic 1.2.0 or GLM 4.7?
GLM 4.7 Flash Heretic 1.2.0 supports 202,752 tokens and GLM 4.7 supports 202,752 tokens.
- What is the difference between GLM 4.7 Flash Heretic 1.2.0 and GLM 4.7?
GLM 4.7 Flash Heretic 1.2.0 is a 29.9B model from darkc0de (GLM family), while GLM 4.7 is a 358.3B model from zai-org (GLM family). Compare their VRAM requirements above to see which fits your GPU or Mac.