SAVRN
Search Contact SAVRN

Open-weight model · Text generation

JiRackUltra_1b

by Center Business Solutions inc CMSManhattan/JiRackUltra_1b

A fast and efficient ~1.5B model optimized for CPU inference. The model was refactored with BitNet features and an updated tokenizer that includes new Routing, Tool call, and Robotics tags.

Parameters1.8B
Context131,072
Weights16.1 GB
Licensemit
AccessOpen weights
Monthly Downloads7.1k

Runs On

What it takes to serve JiRackUltra_1b (1.8B parameters): the memory its weights need at each precision, and the cheapest way to rent enough data-center GPUs to hold them.

PrecisionWeightsMemory neededCheapest setupPer hourAlso fits
16-bit 3.6 GB 4.3 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 1.8 GB 2.1 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 0.9 GB 1.1 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00

Memory is the weights at that precision plus 20% for the runtime and a short context; a long context needs more. Prices are the lowest on-demand hourly rates in the SAVRN Index, read Sep 18, 2026.

Model Card

By Center Business Solutions inc, published under mit, revision 7004303de9b1.

A fast and efficient ~1.5B model optimized for CPU inference. The model was refactored with BitNet features and an updated tokenizer that includes new Routing, Tool call, and Robotics tags. Built on a redesigned DeepSeek R1 architecture with native ternary (BitNet-style) support and ready-to-run GGUF quantizations. - JiRack is a cloud-ready model that helps save money on cloud infrastructure. It can be used as an expert model in RAG deployments, with the ONNX JiRack Java server as an alternative. - Benefits high quality CPU inference TQ2 on Llama.cpp and Ollama via QAT - Robotcs, Routing, Coding, Multimedia, Advanced tool calling via CMSManhattan/JiRackPrecisionTokenizer - We are working to…

Read Center Business Solutions inc's full model card

JiRack Ultra 1B (CPU)

A fast and efficient ~1.5B model optimized for CPU inference. The model was refactored with BitNet features and an updated tokenizer that includes new Routing, Tool call, and Robotics tags. Built on a redesigned DeepSeek R1 architecture with native ternary (BitNet-style) support and ready-to-run GGUF quantizations. - JiRack is a cloud-ready model that helps save money on cloud infrastructure. It can be used as an expert model in RAG deployments, with the ONNX JiRack Java server as an alternative.

JiRack Ternary Architedure & JiRack Tokenizer

  • Benefits high quality CPU inference TQ_2 on Llama.cpp and Ollama via QAT
  • Robotcs, Routing, Coding, Multimedia, Advanced tool calling via CMSManhattan/JiRackPrecisionTokenizer

Ollama production support

  • We are working to support JiRack on Ollama for production systems also
  • added Jirack chat without reasoning feature https://ollama.com/cmsmanhattan
  • Follow fresh Ollama platform updates

JiRack sevice options

  • Current quantizations were done from the FP16 model, but the model allows for more compression thanks to its ternary architecture.
  • If you need to do ternary compression, please write to me and I'll perform QAT from your dataset, tailored specifically to your task.
  • Plus double QAT via ONNX QAT.
  • Adapt train process to avoid catastrophic forgetting with NDA
  • Adapt train process to avoid fast plato in training with NDA
  • Convert model to TQ2_0 with support AVX2 and AVX-512 CPU instructions for high performance on CPU
  • QAT for TQ_2 Llama.cpp Ternarization docs https://huggingface.co/CMSManhattan/JiRackUltra_1b/blob/main/QAT_to_Llama.cpp_GGUF_TQ2_0_JirackUltra_1b.md
  • Adapts to agentic or instruct models for tool calling, using the JiRak tokenizer to enable high-quality tool calling on small models — built as a domain-specific tool expert.
  • Deployment and scale

JiRack Codding Agent IDE

  • It is Agent Coding IDE for JiRack Models to run via Ollama on home PC
  • It good choose for Agent Coding IDE such as Cursor , Windsurf IDE or Devin IDE etc but more safe that ask you to apply changes and review.
  • Test version https://huggingface.co/CMSManhattan/JiRackDeltaNet_27b/resolve/main/jirack_ide.zip
  • Final release version https://huggingface.co/CMSManhattan/JiRackDeltaNet_27b/resolve/main/jirack_ide_final.zip

Spring Boot AI tool calls examples for JiRack Ultra series

  • Tool call library on java for Enterprise https://github.com/alibaba/spring-ai-alibaba

GoEx AI tool calls examples for JiRack Ultra series

  • Tool call library on python https://github.com/ShishirPatil/gorilla

JiRack Ultra 1 tool calls to boost tool call quality

  • Use JiRack Precision tokenzer tags for tool calls with ToolBench https://github.com/OpenBMB/ToolBench
  • https://huggingface.co/xalss/Qwen2-7B-Instruct-glaive-function-calling
  • https://huggingface.co/datasets/NousResearch/hermes-function-calling-v1
  • Add JiRack tool call tags in the dataset and modify tool call processor if needed

JiRack RoboTech

Available Variants

Tag Quant Size Approx. RAM Description
cmsmanhattan/jirack-ultra-1b-cpu:latest Full 0.55 GB ~1.8 GB Full ternary reference
cmsmanhattan/jirack-ultra-1b-cpu-q4:latest Q4_K_M 0.38 GB ~1.4 GB Recommended balance
cmsmanhattan/jirack-ultra-1b-cpu-q3:latest Q3_K_M 0.31 GB ~1.2 GB Good quality / size trade-off
cmsmanhattan/jirack-ultra-1b-cpu-q2:latest Q2_K 0.24 GB ~1.0 GB Maximum compression
## Quick Start
### Run with Docker
Default CPU (Q4 recommended)
docker run -d \
  --name jirack_ultra_1b \
  -p 7869:7869 \
  --cpus=16 \
  -e THREADS=16 \
  -e THREADS_BATCH=16 \ 
  --restart unless-stopped \
  cmsmanhattan/jirack-ultra-1b-cpu-q4:latest

Q3

docker run -d \
  --name jirack_ultra_1b \
  -p 7869:7869 \
  --cpus=16 \
  -e THREADS=16 \
  -e THREADS_BATCH=16 \ 
  --restart unless-stopped \
  cmsmanhattan/jirack-ultra-1b-cpu-q3:latest

Q2 (lowest memory)

docker run -d \
  --name jirack_ultra_1b \
  -p 7869:7869 \
  --cpus=16 \
  -e THREADS=16  \
  -e THREADS_BATCH=16 \ 
  --restart unless-stopped \
  cmsmanhattan/jirack-ultra-1b-cpu-q2:latest

Full precision

docker run -d \
  --name jirack_ultra_1b \
  -p 7869:7869 \
  --cpus=16  \
  -e THREADS=16 \
  -e THREADS_BATCH=16 \ 
  --restart unless-stopped \
  cmsmanhattan/jirack-ultra-1b-cpu:latest

Multi CPU

docker run -d \
  --name jirack_ultra_1b \
  -p 7869:7869 \
  --cpus=16 \
  -e THREADS=16 \
  -e THREADS_BATCH=16 \ 
  --restart unless-stopped \
  --memory=4g \
  --cpus=4 \
  cmsmanhattan/jirack-ultra-1b-cpu-q4:latest

Docker Compose Example

services:
  jirack:
    image: cmsmanhattan/jirack-ultra-1b-cpu-q4:latest
    container_name: jirack_ultra_1b
    ports:
      - "7869:7869"
    volumes:
      - .:/app
      - ./web:/app/web
    environment:
      - MAX_TOKENS=2048
      - TEMPERATURE=0.7
      - TOP_P=0.9
      - DEFAULT_STREAM=False
      - INTRA_THREADS=4
      - USE_ENV_ALLOCATOR=1
      - THREADS=16 
      - THREADS_BATCH=16 
    deploy:
      resources:
        limits:
          memory: 4g

Access the UI

Once the container is running, open your browser and navigate to: http://localhost:7869 This opens the JiRack UI — a clean web interface.

Changing the Port

The listening port can be easily modified directly from the Settings panel within the JiRack UI.

Licensing

  • Model weights are released under the MIT License — free to use, modify, and distribute for any purpose, including commercial. No royalties, no per-user fees, no subscription.
  • The Docker image with UI and the pre-built Ollama quantizations are separate paid products. If you prefer to build your own secure deployment — take the weights, assemble your own stack, and you're done.
  • The JiRack Ultra 1B model for Docker and Ollama is provided under a commercial license ($12 per user per year).
  • All JiRack UI clients are provided under a commercial license.
  • However, the UI clients can be used for free when running together with the official JiRack Docker containers, as long as they are not redistributed separately. For commercial licensing, cluster deployment, or enterprise use of JiRack models, please contact us.
  • JiRack MS Windows 11 Desktop Client (with Ollama API): https://huggingface.co/kgrabko/JiRackTernary_1b/resolve/main/jirack-chat.zip
  • Live email chat with the model: [email protected]

Hardware Recommendations

Recommended Hardware for JiRack Ultra 1B (single Docker container)

Use Case CPU RAM Recommended Quant Expected Speed Recommendation
Recommended Ryzen 5 / Intel i5 4–8 GB Q4_K_M Excellent interactive Best choice
High Performance Ryzen 7 / Intel i7 8–16 GB Full / Q4 Excellent Excellent
Low Memory Modern 4+ core CPU 2–4 GB Q3_K_M or Q2_K Usable Acceptable
Edge / Minimal Laptop / SBC CPU 2 GB Q2_K Acceptable Budget option
## Important Memory Notes
Even though the quantized 1B models are very small, we recommend the following for best experience:
- Q4_K_M: 2–4 GB system RAM minimum
- Q3_K_M / Q2_K: 1.5–3 GB system RAM
- Full precision: 3–4 GB+ system RAM recommended
Reasons for extra headroom:
- KV-cache consumption during generation
- Runtime overhead and temporary buffers
- System stability and avoiding out-of-memory errors
- Room for larger context windows
Minimum recommended (Q4): 2–3 GB system RAM
Ideal: 4–8 GB system RAM
I added the default model in full precision. This serves as the base for quantization, allowing us to find the optimal balance between model size and performance.
## Architecture Notes
- Refactored with BitNet features: Native BitLinear ternary path (b1.58-style) with λ-warmup STE
- Updated tokenizer: Extended with new special tags for Routing, Tool call, and Robotics
- Base: Redesigned Llama-3.2-1B style (Hidden 2048, Intermediate 8192, 16 layers, GQA 32/8, vocab 128256)
- RoPE θ = 10000, RMSNorm ε = 1e-6
- Ready-to-run GGUF quantizations (Q2_K, Q3_K_M, Q4_K_M)
## Contact & Licensing
For joint venture opportunities, hardware integration, or licensing inquiries:
- Email: [email protected]
- Phone: +1 (516) 777-0945
- Location: New York, USA

License

MIT License

Configuration

Architecture
Qwen2ForCausalLM
Context length (tokens)
131,072
Layers
28
Hidden size
1,536
Feed-forward size
8,960
Attention heads
12
Key/value heads
2
Vocabulary size
151,936
RoPE base
10000
Stored precision
bfloat16
Model type
qwen2

Identity and Version

Repository
CMSManhattan/JiRackUltra_1b
Publisher
Center Business Solutions inc
Task
Text generation
Modality
Text
Library
Not stated by the source
Parameters
1.8B parameters
Languages
en, zh, ja, ko, fr, es, pt, de
Revision
7004303de9b141a90b798980138141e3cfda03bf
First published
2026-08-02
Last updated
2026-09-13

Files and Weights

31 files, 16.1 GB in total. The weights are 7 files totalling 16.1 GB in gguf, pt, safetensors.

Weights7 files · 16.1 GB
Configuration11 files · 133.7 KB
Tokenizer3 files · 11.4 MB
Documentation3 files · 21.4 KB
Other6 files · 7.7 KB
Repository1 file · 1.9 KB
Every file
FileTypeSizeSHA-256
JiRackUltra_1b.Q6_K.ggufWeights1.5 GB 8a7a9a4052de
JiRackUltra_1b.Q8_0.ggufWeights1.9 GB f56b2061f0f3
JiRackUltra_1b.ggufWeights3.6 GB 19bb919b2deb
JiRackUltra_1b_Q3_K_M.ggufWeights924.5 MB 73cc639081a6
JiRackUltra_1b_Q4_K_M.ggufWeights1.1 GB 8db8cb25c578
model.ptWeights3.6 GB 1967c7a23020
model.safetensorsWeights3.6 GB 16bea0a35dba
JiRackTernaryUltra_1b.pyConfiguration20.3 KB
JiRackTernaryUltra_1b_old.pyConfiguration20.3 KB
chat_jirack_1b.pyConfiguration7.5 KB
config.jsonConfiguration481 B
generation_config.jsonConfiguration114 B
get_tool_call.pyConfiguration7.9 KB
jirack_to_gguf_1p5b.pyConfiguration15.0 KB
materialize_ternary_1b.pyConfiguration6.4 KB
qat_ultra_1b_for_TQ_2.pyConfiguration16.6 KB
train_jirack_1b_lambda_warmup.pyConfiguration18.7 KB
train_toolace_toolcalling_lora_ultra.pyConfiguration20.4 KB
NOTICE.mdDocumentation268 B
QAT_to_Llama.cpp_GGUF_TQ2_0_JirackUltra_1b.mdDocumentation12.1 KB
README.mdDocumentation9.0 KB
chat_template.jinjaOther2.3 KB
chat_template.jinja.bakOther2.2 KB
chat_template.jinja_with_thinkingOther2.2 KB
gguf.txtOther513 B
gguf_chat.shOther159 B
quant.shOther261 B
.gitattributesRepository1.9 KB
tokenizer.jsonTokenizer11.4 MB fbc3d20619bd
tokenizer_config.jsonTokenizer2.8 KB
tokenizer_config.json_with_thinkingTokenizer2.8 KB

License and Download

License
mit
Access
Open weights, no gate
Download size
16.1 GB
Download from Center Business Solutions inc

Released by Center Business Solutions inc through its official repository on Hugging Face. Read the license.

Memory Requirements

PrecisionWeights in memory
As published16.1 GB
16-bit3.6 GB
8-bit1.8 GB
4-bit0.9 GB

Weights only, from the published parameter count; the key-value cache and runtime add to this.

Questions About JiRackUltra_1b

How much GPU memory does JiRackUltra_1b need?

About 4.3 GB at 16-bit and 1.1 GB at 4-bit: the weights (1.8B parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run JiRackUltra_1b on?

At 16-bit, 1x MI300X from $1.85 an hour; at 4-bit, 1x MI300X from $1.85 an hour, at the lowest on-demand prices the SAVRN Index lists.

Can I use JiRackUltra_1b commercially?

Yes. JiRackUltra_1b is released under MIT License. The MIT License is a short permissive license. It permits commercial use, modification and redistribution, provided the copyright notice and permission notice are included.

What is JiRackUltra_1b's context length?

131,072 tokens, from the maximum position embeddings in its published configuration.

Similar Models

Model · Text generation

Bonsai-27B-mlx-1bit

Prism ML

Full 27B-class reasoning in binary transformer weights — the first 27B-class model to run on a phone - ~3.9 GB deployed footprint (down from ~54 GB FP16) — fits within the per-app memory budget of a high-end phone such as the iPhone 17 Pro Max - Retains thinking, reasoning, and agentic behavior deep in the sub-4-bit regime, where conventional low-bit representations collapse — 76.11 average across 15 thinking-mode benchmarks (89.5% of FP16), including math at 91.66 and coding at 81.88 - End-to-end binary language weights across embeddings, attention projections, MLP projections, and LM head, at a true 1.125 bits per weight — no high-precision escape hatches behind a low-bit label; the…

Open weights apache-2.0 1.7B parameters 262,144 tokens mlx

Model · Text generation

Qwen3-1.7B-Base

Qwen

Qwen3 is the latest generation of large language models in Qwen series, offering a comprehensive suite of dense and mixture-of-experts (MoE) models. Building upon extensive advancements in training data, model architecture, and optimization techniques, Qwen3 delivers the following key improvements over the previously released Qwen2.5: Qwen3-1.7B-Base has the following features: For more details, including benchmark evaluation, hardware requirements, and inference performance, please refer to our blog, GitHub, and Documentation. The code of Qwen3 has been in the latest Hugging Face transformers and we advise you to use the latest version of transformers. With transformers<4.51.0, you will…

Open weights apache-2.0 1.7B parameters 32,768 tokens transformers

DualMind TKD Agentic 1.7B is a two-stage derivative of Qwen/Qwen3-1.7B. It combines topology-guided mathematical knowledge distillation with assistant-masked agentic and function-calling specialization. teacher distillation topology, gap-energy diagnostics, and phase-weighted Explore/Examine/Response supervision Stage 1 was designed to transfer mathematical reasoning behavior while placing additional learning pressure on derivation, verification, and high-discrepancy reasoning transitions. - Tool schemas, user messages, and tool-result messages were visible as context but excluded from direct loss - Mathematical replay was mixed into Stage 2 to reduce catastrophic forgetting The files in…

Open weights other 1.7B parameters 40,960 tokens transformers

Model · Text generation

dQwen3-1.7B-Base

IFML

A masked diffusion language model adapted from Qwen3-1.7B. The backbone is full attention, and every layer is made bidirectional. It is the control model in the paper's matched comparison against the hybrid dQwen3.5-2B. This is a base model, with no instruction tuning. Paper: dQwen3.5: Hybrid-Attention Diffusion Language Models. Code: https://github.com/AntonXue/dQwen Needs a CUDA GPU and transformers>=5.13 (tested with torch 2.7.1+cu128, flash-linear-attention 0.5.1). generate decodes the whole canvas at once, committing positions above a confidence threshold (tau=0.9); pass blocklength=32 for left-to-right block decoding, or tau=None, stepsperblock=k for a fixed budget. The 50B-token…

Open weights apache-2.0 1.7B parameters 40,960 tokens transformers

Model · Text generation

qwen3-1.7b-grpo

Yu

This model is a fine-tuned version of None. It has been trained using TRL. This model was trained with GRPO, a method introduced in DeepSeekMath: Pushing the Limits of Mathematical Reasoning in Open Language Models.

Open weights 1.7B parameters 40,960 tokens transformers

Model · Text generation

Shepherd-Alpha

Convergent Intelligence

The first defense AI reasoning model on Hugging Face. Shepherd-Alpha is a tactical reasoning model fine-tuned on dual-perspective military scenario analysis using BiCell Depth Dispersal — a novel training methodology that partitions transformer layers by abstraction depth and trains them asymmetrically to separate representation encoding from task-specific reasoning. Developed by Convergent Intelligence LLC: Research Division Given a tactical scenario, Shepherd-Alpha produces structured dual-perspective analysis: - Attack reasoning — how an adversary would exploit the situation - Defense reasoning — how to counter, mitigate, and survive The model is trained to think like both attacker and…

Open weights apache-2.0 1.7B parameters 40,960 tokens transformers