Qwen2.5-1.5B-Instruct vs JiRackUltra_1b

Specs, VRAM requirements and download trends — updated 23 October 2026.

Qwen · A · Open weights
Params
1.5 B
Context
32,768
30d
4.9 M
apache-2.0 · commercial OK
CMSManhattan · B · Open weights
Params
1.8 B
Context
131,072
30d
2.5 M
mit · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification Qwen2.5-1.5B-Instruct JiRackUltra_1b
Parameters 1.5 B 1.8 B
Architecture Qwen2ForCausalLM Qwen2ForCausalLM
Context length 32,768 131,072
Licence apache-2.0 mit
Commercial use Allowed Allowed
Languages 1 13
Downloads 30d 4,938,875 2,485,543
Downloads all time 224.7 M 2.6 M
Quantizations on the Hub SAFETENSORS GGUF, SAFETENSORS
Gated No No
First seen on the Hub 2024-09-17 2026-08-02

Download trend

Daily snapshots, last 88 days (28 Jul – 23 Oct)

14.2 M307 K
Qwen2.5-1.5B-Instruct JiRackUltra_1b

VRAM side by side

On RTX 4090 · 24 GB · 8K context unless noted

JiRackUltra_1b · Q4_K_M 2.0 GB / 24 GB
✅ Runs comfortably
Qwen2.5-1.5B-Instruct · fp16 4.1 GB / 24 GB
✅ Runs comfortably
JiRackUltra_1b · fp16 @ 128K ctx 8.7 GB / 24 GB
✅ Runs comfortably

Adjacent comparisons