RIFA Nano (0.5B)

The smallest model in the RIFA series
Fine-tuned by SM Shahbaj


About

RIFA Nano is a carefully fine-tuned version of Qwen/Qwen2.5-0.5B-Instruct.
It is designed to be a lightweight, helpful assistant with strong Bangla support and reduced hallucination on unanswerable questions.

Property Value
Name RIFA Nano
Parameters 0.5B
Developed by SM Shahbaj
Series RIFA (Nano โ†’ Flash โ†’ Code โ†’ Edge โ†’ Pro)

What's new in v2

  • Improved skill mix (Bangla + English + coding + light math + general knowledge)
  • Dedicated anti-hallucination training ("I don't know" examples)

Downloads

File Link
Model files (safetensors) Browse files
Rifa-Nano-0.5B.F16.gguf Download
Rifa-Nano-0.5B.Q3_K_M.gguf Download
Rifa-Nano-0.5B.Q4_K_M.gguf Download
Rifa-Nano-0.5B.Q5_K_M.gguf Download
Rifa-Nano-0.5B.Q6_K.gguf Download
Rifa-Nano-0.5B.Q8_0.gguf Download

Recommended quant: Q5_K_M (best balance of quality & size)


Quick Start

Transformers

from transformers import AutoModelForCausalLM, AutoTokenizer

repo = "smshahbaj/Rifa-Nano-0.5B"
tokenizer = AutoTokenizer.from_pretrained(repo)
model = AutoModelForCausalLM.from_pretrained(repo, device_map="auto")

messages = [{"role": "user", "content": "เฆคเงเฆฎเฆฟ เฆ•เง‡?"}]
text = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
inputs = tokenizer(text, return_tensors="pt").to(model.device)
out = model.generate(**inputs, max_new_tokens=128)
print(tokenizer.decode(out[0], skip_special_tokens=True))

GGUF (LM Studio / Ollama / llama.cpp)

Download any .gguf file from the table above and load it directly.


Limitations

  • This is a 0.5B model. It will still make mistakes on complex reasoning, very recent events, and obscure facts.
  • The anti-hallucination training reduces confident wrong answers on clearly unanswerable questions, but it does not add knowledge beyond the model's size.
  • Always double-check important information (code, numbers, facts).

RIFA Series

Model Size Focus
RIFA Nano 0.5B Lightweight + Bangla
RIFA Flash 1.7B Balanced
RIFA Code 0.6B Coding
RIFA Edge 0.6B Edge devices
RIFA Pro 3B Highest quality

Maintainer

SM Shahbaj
huggingface.co/smshahbaj

License: Apache 2.0

Documentation

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