Which has a longer context window, Gemma 4 19B or Gemma 3 12B IT?

Gemma 4 19B supports 262,144 tokens and Gemma 3 12B IT supports 32,768 tokens.

What is the difference between Gemma 4 19B and Gemma 3 12B IT?

Gemma 4 19B is a 19.0B model from 0xSero (Gemma family), while Gemma 3 12B IT is a 12.2B model from Google (Gemma family). Compare their VRAM requirements above to see which fits your GPU or Mac.

Gemma 4 19B vs Gemma 3 12B IT

Side-by-side comparison of VRAM requirements, quantization, context length, and hardware compatibility.

Gemma 4 19B

0xSero · 19.0B

Chat

Gemma 3 12B IT

Google · 12.2B

Vision

Specifications

	Gemma 4 19B	Gemma 3 12B IT
Parameters	19.0B	12.2B
Context	262K	33K
Architecture	Gemma4ForConditionalGeneration	—
License	Gemma Terms	Gemma Terms
Downloads	415	3.0M
Released	May 2026	—

VRAM by Quantization: Gemma 4 19B vs Gemma 3 12B IT

Quantization	Bits	Gemma 4 19B VRAM	Gemma 3 12B IT VRAM
Q2_K	3.40	—	5.7 GB
Q3_K_M	3.90	—	6.5 GB
Q3_K_S	3.50	—	5.9 GB
Q4_0	4.00	—	6.7 GB
Q4_K_M	4.80	—	8.0 GB
Q5_K_M	5.70	—	9.6 GB
Q6_K	6.60	—	11.1 GB

Verdict

Gemma 4 19B supports a longer context window (262K tokens). Gemma 3 12B IT is the more widely downloaded of the two.

Frequently Asked Questions

Which has a longer context window, Gemma 4 19B or Gemma 3 12B IT?: Gemma 4 19B supports 262,144 tokens and Gemma 3 12B IT supports 32,768 tokens.
What is the difference between Gemma 4 19B and Gemma 3 12B IT?: Gemma 4 19B is a 19.0B model from 0xSero (Gemma family), while Gemma 3 12B IT is a 12.2B model from Google (Gemma family). Compare their VRAM requirements above to see which fits your GPU or Mac.