JiRackUltra_1b vs LFM2.5-2.6B-GGUF

Specs, VRAM requirements and download trends — updated 27 October 2026.

CMSManhattan · A · Open weights
Params
1.8 B
Context
131,072
30d
891 K
mit · commercial OK
LiquidAI · B · Open weights
Params
2.6 B
Context
131,072
30d
187 K

Specification comparison

Differences are highlighted; identical values are muted.

Specification JiRackUltra_1b LFM2.5-2.6B-GGUF
Parameters 1.8 B 2.6 B
Architecture Qwen2ForCausalLM —
Context length 131,072 131,072
Licence mit other
Commercial use Allowed Unknown
Languages 13 16
Downloads 30d 891,277 186,819
Downloads all time 2.6 M 2.5 M
Quantizations on the Hub GGUF, SAFETENSORS GGUF, SAFETENSORS
Gated No No
First seen on the Hub 2026-08-02 2026-08-01

Download trend

Daily snapshots, last 47 days (25 Sep – 10 Nov)

2.5 M187 K
JiRackUltra_1b LFM2.5-2.6B-GGUF A overtook B on 29 Sep

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
LFM2.5-2.6B-GGUF · Q4_0 2.6 GB / 24 GB
✅ Runs comfortably
JiRackUltra_1b · fp16 @ 128K ctx 8.7 GB / 24 GB
✅ Runs comfortably
LFM2.5-2.6B-GGUF · fp16 @ 128K ctx 18.6 GB / 24 GB
✅ Runs comfortably

Adjacent comparisons