Gemma 3 12B IT Heretic vs Gemma 4 31B IT
Side-by-side comparison of VRAM requirements, quantization, context length, and hardware compatibility.
Specifications
| Gemma 3 12B IT Heretic | Gemma 4 31B IT | |
|---|---|---|
| Parameters | 12.2B | 32.7B |
| Context | 131K | 262K |
| Architecture | Gemma3ForConditionalGeneration | Gemma4ForConditionalGeneration |
| License | Gemma Terms | Apache 2.0 |
| Downloads | 16.0K | 11.1M |
| Released | Mar 2026 | — |
VRAM by Quantization: Gemma 3 12B IT Heretic vs Gemma 4 31B IT
| Quantization | Bits | Gemma 3 12B IT Heretic VRAM | Gemma 4 31B IT VRAM |
|---|---|---|---|
| BF16 | 16.00 | 25.4 GB | 67.0 GB |
| Q2_K | 3.40 | 6.2 GB | 15.5 GB |
| Q3_K_M | 3.90 | 7 GB | 17.6 GB |
| Q4_K_M | 4.80 | 8.4 GB | 21.2 GB |
| Q4_K_S | 4.50 | 7.9 GB | — |
| Q5_K_M | 5.70 | 9.7 GB | 24.9 GB |
| Q5_K_S | 5.50 | 9.4 GB | — |
| Q6_K | 6.60 | 11.1 GB | 28.6 GB |
| Q8_0 | 8.00 | 13.2 GB | 34.3 GB |
Verdict
Gemma 3 12B IT Heretic needs less VRAM at Q4_K_M (8.4 GB vs 21.2 GB), so it fits on smaller GPUs. Gemma 4 31B IT supports a longer context window (262K tokens). Gemma 4 31B IT is the more widely downloaded of the two.
Frequently Asked Questions
- Which needs less VRAM, Gemma 3 12B IT Heretic or Gemma 4 31B IT?
At Q4_K_M, Gemma 3 12B IT Heretic needs 8.4 GB and Gemma 4 31B IT needs 21.2 GB, so Gemma 3 12B IT Heretic is the lighter option to run locally.
- Which has a longer context window, Gemma 3 12B IT Heretic or Gemma 4 31B IT?
Gemma 3 12B IT Heretic supports 131,072 tokens and Gemma 4 31B IT supports 262,144 tokens.
- What is the difference between Gemma 3 12B IT Heretic and Gemma 4 31B IT?
Gemma 3 12B IT Heretic is a 12.2B model from DreamFast (Gemma family), while Gemma 4 31B IT is a 32.7B model from Google (Gemma family). Compare their VRAM requirements above to see which fits your GPU or Mac.