AI21 Jamba Mini 1.5 vs AceMath 1.5B Instruct

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

AI21 Jamba Mini 1.5

AI21 Labs · 51.6B

Chat
AceMath 1.5B Instruct

NVIDIA · 1.8B

ChatMath

Specifications

AI21 Jamba Mini 1.5AceMath 1.5B Instruct
Parameters51.6B1.8B
Context4K
ArchitectureQwen2ForCausalLM
LicenseOtherCC BY-NC 4.0
Downloads10.0K1.4K
ReleasedFeb 2026Jan 2025

VRAM by Quantization: AI21 Jamba Mini 1.5 vs AceMath 1.5B Instruct

QuantizationBitsAI21 Jamba Mini 1.5 VRAMAceMath 1.5B Instruct VRAM
BF1616.00113.5 GB3.9 GB

Verdict

AceMath 1.5B Instruct needs less VRAM at BF16 (3.9 GB vs 113.5 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 AceMath 1.5B Instruct?

At BF16, AI21 Jamba Mini 1.5 needs 113.5 GB and AceMath 1.5B Instruct needs 3.9 GB, so AceMath 1.5B Instruct is the lighter option to run locally.

What is the difference between AI21 Jamba Mini 1.5 and AceMath 1.5B Instruct?

AI21 Jamba Mini 1.5 is a 51.6B model from AI21 Labs, while AceMath 1.5B Instruct is a 1.8B model from NVIDIA. Compare their VRAM requirements above to see which fits your GPU or Mac.