Which needs less VRAM, AI21 Jamba Mini 1.5 or WizardLM 2 8x22B?

At BF16, AI21 Jamba Mini 1.5 needs 113.5 GB and WizardLM 2 8x22B needs 282.0 GB, so AI21 Jamba Mini 1.5 is the lighter option to run locally.

What is the difference between AI21 Jamba Mini 1.5 and WizardLM 2 8x22B?

AI21 Jamba Mini 1.5 is a 51.6B model from AI21 Labs, while WizardLM 2 8x22B is a 140.6B model from alpindale. Compare their VRAM requirements above to see which fits your GPU or Mac.

AI21 Jamba Mini 1.5 vs WizardLM 2 8x22B

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

AI21 Jamba Mini 1.5

AI21 Labs · 51.6B

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WizardLM 2 8x22B

alpindale · 140.6B

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Specifications

	AI21 Jamba Mini 1.5	WizardLM 2 8x22B
Parameters	51.6B	140.6B
Context	—	66K
Architecture	—	MixtralForCausalLM
License	Other	Apache 2.0
Downloads	10.0K	9.9K
Released	Feb 2026	—

VRAM by Quantization: AI21 Jamba Mini 1.5 vs WizardLM 2 8x22B

Quantization	Bits	AI21 Jamba Mini 1.5 VRAM	WizardLM 2 8x22B VRAM
BF16	16.00	113.5 GB	282.0 GB

Verdict

AI21 Jamba Mini 1.5 needs less VRAM at BF16 (113.5 GB vs 282.0 GB), so it fits on smaller GPUs. AI21 Jamba Mini 1.5 is the more widely downloaded of the two.

Frequently Asked Questions

Which needs less VRAM, AI21 Jamba Mini 1.5 or WizardLM 2 8x22B?: At BF16, AI21 Jamba Mini 1.5 needs 113.5 GB and WizardLM 2 8x22B needs 282.0 GB, so AI21 Jamba Mini 1.5 is the lighter option to run locally.
What is the difference between AI21 Jamba Mini 1.5 and WizardLM 2 8x22B?: AI21 Jamba Mini 1.5 is a 51.6B model from AI21 Labs, while WizardLM 2 8x22B is a 140.6B model from alpindale. Compare their VRAM requirements above to see which fits your GPU or Mac.