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Solenoid 1.1
Fine-tuned legal LLM for OHADA jurisprudence and Niger fiscal law
Solenoid is a family of large language models fine-tuned by Nusoidal from Qwen2.5 architectures on Niger's legal corpora, in French (majority). It has the ability to provide answers related to OHADA business law, tax code, and administrative procedures.
Model Details
- Base model: Qwen2.5-1.5B
- Fine-tuning: LoRA (r=16, alpha=32) with ChatML prompt format
- Quantization: Q4_K_M (941 MB GGUF)
- Context window: 32,768 tokens
- Languages: French (primary), legal terminology
- License: Apache 2.0
Capabilities
Solenoid is specialized in:
- OHADA uniform acts (commercial law, company law, securities)
- Niger tax code and fiscal procedures
- Business registration and regulatory compliance
- Public procurement and administrative law
- Labor law and social security (CNSS)
Benchmarks
428 questions across OHADA, tax, labor, procurement, banking, civil, digital, environment, and real-world scenarios.
| Model | OHADA Refs | Niger Refs | Citations | Domain Score |
|---|---|---|---|---|
| Qwen2.5-1.5B (base) | 0.2 | 0.8 | 0.2 | 1.3 |
| Solenoid 1.1 | 0.7 | 1.1 | 1.7 | 3.5 |
Solenoid 1.1 outperforms Qwen2.5-1.5B (base) by 175% on domain relevance.
Solenoid scores 2.8x higher than the base model on domain-specific legal references. On OHADA questions specifically, the gap is even wider, with Solenoid consistently citing the correct uniform acts while the base model defaults to generic French law.
Benchmarked on RTX 5090 (NVIDIA Neptune), temperature 0.0, 256 max_tokens. Full code in benchmark_solenoid.py.
Prompt Format
Solenoid uses the ChatML format:
<|im_start|>system
Vous etes Solenoid, un assistant juridique specialise en droit OHADA.
<|im_end|>
<|im_start|>user
Quelles sont les etapes pour creer une SARL au Niger ?
<|im_end|>
<|im_start|>assistant
Files
| File | Description |
|---|---|
Solenoid_1.1-Q4_K_M.gguf |
Model weights (GGUF Q4_K_M, 941 MB) |
benchmark_solenoid.py |
Benchmark script (600 questions, GPU) |
benchmark_dashboard.py |
Interactive HTML dashboard generator |
benchmark_results/ |
Raw results + generated report + dashboard |
LICENSE |
Apache 2.0 |
Access
Solenoid 1.1 Q4_K_M is open source under Apache 2.0. Download the GGUF file and use with any llama.cpp-compatible inference engine.
# Download
wget https://huggingface.co/Nusoidal/Solenoid_1.1/resolve/main/Solenoid_1.1-Q4_K_M.gguf
# Run with llama.cpp
./llama-cli -m Solenoid_1.1-Q4_K_M.gguf -p "Qu'est-ce que l'OHADA ?" -n 256
For commercial licensing or other variants (Q8_0, Solenoid 1.2): nusoidal@gmail.com
License
Apache License 2.0. See LICENSE.
Solenoid is a trademark of Nusoidal.
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