FableForge-AI/ nexus-science:iq4_xs

4 3 hours ago

Scientific reasoning specialist — 140/150 (93%). Physics, chemistry, biology, mathematics, earth science, scientific method. Based on Qwen2.5-1.5B, 32K context. Uncensored. 

ollama run FableForge-AI/nexus-science:iq4_xs

Details

3 hours ago

1345a6916260 · 896MB ·

model
qwen2
·
1.54B
·
IQ4_XS
params
{ "num_ctx": 4096 }

Readme

Nexus-Science: Scientific Reasoning Specialist

140⁄150 (93%) — rigorous scientific analysis across six disciplines.

Physics, chemistry, biology, mathematics, earth science, and the scientific method — delivering graduate-level explanations, calculations, and experimental design.

🏆 Performance

Category Score Accuracy
Domain Knowledge 48⁄50 96%
Uncensored (Domain) 24⁄25 96%
Uncensored (General) 24⁄25 96%
Reasoning 20⁄25 80%
Tool Use 24⁄25 96%
Total 140⁄150 93%

⚡ Quick Start

# Recommended (best quality/speed)
ollama run FableForge-AI/nexus-science

# Full precision (maximum quality)
ollama run FableForge-AI/nexus-science:f16

# Phone / edge (smallest)
ollama run FableForge-AI/nexus-science:iq2_xxs

📦 Available Tags

Tag Size Notes
iq2_xxs 511 MB Smallest — phones, edge devices
iq3_xxs 669 MB Low RAM balanced
q2_k 676 MB Compact 2-bit
q3_k_m 824 MB Balanced small
iq4_xs 896 MB imatrix — compact + quality
q4_0 938 MB Legacy 4-bit — fast
✅ q4_k_m / latest 986 MB Recommended — best balance
q5_k_m 1.1 GB High quality
q6_k 1.3 GB Near-lossless
q8_0 1.6 GB Lossless
f16 3.1 GB Full precision

Not sure? Take q4_k_m. Low RAM → iq4_xs. Max quality → q6_k.

🔧 Hardware Guide

Tag Size Min RAM Speed Best Hardware
iq2_xxs 511 MB 1 GB ~30 tok/s iPhone, Android, RPi 4
✅ q4_k_m 986 MB 2 GB ~25 tok/s M1 Mac, RTX 3060, phone
f16 3.1 GB 4 GB ~15 tok/s M2 Mac, RTX 4070, desktop

🧬 About Qwen2.5-1.5B

  • Base model: Qwen2.5-1.5B (1.54B parameters)
  • Context: 32K tokens
  • License: Apache 2.0
  • Quantizations: 12 variants (iq2_xxs through f16)

🌌 The NEXUS Family

Model Score Specialty
nexus-coder 141⁄150 (94%) Software Engineering & Code
nexus-security 144⁄150 (96%) Cybersecurity & Hacking
nexus-finance 144⁄150 (96%) Finance & Accounting
nexus-medical 140⁄150 (93%) Medicine & Healthcare
nexus-legal 139⁄150 (93%) Law & Compliance
✅ nexus-science 140⁄150 (93%) Science & Research

🧠 Prompt Format (ChatML)

<|im_start|>system
{system_prompt}<|im_end|>
<|im_start|>user
{prompt}<|im_end|>
<|im_start|>assistant

📊 Benchmark Methodology

  • Prompts: 30 per model (5 categories × 6 domains)
  • Scoring: 0–5 per prompt, max 150
  • Timeout: 300s per prompt
  • Hardware: NVIDIA A40

📄 License

Apache 2.0 — free for commercial use.

Part of the FableForge AI ecosystem. Zero Limits. Pure Intelligence.