AI21 Jamba Reasoning 3B vs GritLM 7B

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

AI21 Jamba Reasoning 3B

AI21 Labs · 3.2B

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GritLM 7B

GritLM · 7.2B

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Specifications

AI21 Jamba Reasoning 3BGritLM 7B
Parameters3.2B7.2B
Context262K33K
ArchitectureJambaForCausalLMMistralForCausalLM
LicenseApache 2.0Apache 2.0
Downloads2.9K9.8K
ReleasedOct 2025Mar 2026

VRAM by Quantization: AI21 Jamba Reasoning 3B vs GritLM 7B

QuantizationBitsAI21 Jamba Reasoning 3B VRAMGritLM 7B VRAM
BF1616.006.7 GB15.1 GB

Verdict

AI21 Jamba Reasoning 3B needs less VRAM at BF16 (6.7 GB vs 15.1 GB), so it fits on smaller GPUs. AI21 Jamba Reasoning 3B supports a longer context window (262K tokens). GritLM 7B is the more widely downloaded of the two.

Frequently Asked Questions

Which needs less VRAM, AI21 Jamba Reasoning 3B or GritLM 7B?

At BF16, AI21 Jamba Reasoning 3B needs 6.7 GB and GritLM 7B needs 15.1 GB, so AI21 Jamba Reasoning 3B is the lighter option to run locally.

Which has a longer context window, AI21 Jamba Reasoning 3B or GritLM 7B?

AI21 Jamba Reasoning 3B supports 262,144 tokens and GritLM 7B supports 32,768 tokens.

What is the difference between AI21 Jamba Reasoning 3B and GritLM 7B?

AI21 Jamba Reasoning 3B is a 3.2B model from AI21 Labs, while GritLM 7B is a 7.2B model from GritLM. Compare their VRAM requirements above to see which fits your GPU or Mac.