Atvar - AI Assistant by Alexzo

Atvar is a powerful AI assistant created by Alexzo, fine-tuned from Qwen3.5-4B with custom identity, tool use, and reasoning capabilities.

Key Features

• Custom Identity: Identifies as Atvar by Alexzo (not Qwen/Alibaba)
• Alexzo API Tools: Built-in support for Alexzo Search, News, Weather, and Image Generation APIs
• Step-by-Step Reasoning: Trained with LIMO-style reasoning traces
• 10 Custom Tools: 4 Alexzo APIs + 6 general-purpose tools
• Multi-language: Supports English, Hindi, Spanish, French, German, Chinese, Japanese, and more
• 128K Context: Supports up to 128K tokens of context
• Anti-flattery: No preachy responses, no hedging, direct and honest

Alexzo API Tools

Tool	API Endpoint	Description
alexzo_search	POST /api/search	AI-powered web search
alexzo_news	GET /api/news	Real-time news headlines
alexzo_weather	GET /api/weather	Global weather data
alexzo_generate_image	POST /api/generate	Text-to-image (Zyfoox AI)

Base URL: https://alexzo.vercel.app/api

Usage

from transformers import AutoTokenizer, AutoModelForCausalLM

tokenizer = AutoTokenizer.from_pretrained("Sarthakofficial/atvar", trust_remote_code=True)
model = AutoModelForCausalLM.from_pretrained("Sarthakofficial/atvar", trust_remote_code=True)

messages = [{"role": "user", "content": "Who are you?"}]
text = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
inputs = tokenizer(text, return_tensors="pt")
outputs = model.generate(**inputs, max_new_tokens=200)
response = tokenizer.decode(outputs[0][inputs["input_ids"].shape[1]:], skip_special_tokens=True)
print(response)

Training Details

• Base Model: Qwen/Qwen3.5-4B
• Method: LoRA fine-tuning (rank 32, alpha 64)
• Modules: All attention + MLP layers + embed_tokens + lm_head
• Precision: fp16 (P100 GPU)
• Dataset: Identity + Reasoning + Math + Code + LIMO

Model Files

File	Description
Atvar_Reasoning_Trainer_v2.py	Training script with LIMO + Alexzo APIs
Atvar_Reasoning_Trainer_v2.ipynb	Jupyter notebook for Kaggle/Colab
atvar_system_prompt.txt	System prompt
atvar_tools.json	Tool definitions
atvar_training_data.jsonl	Training data
chat_template.jinja	Chat template

About Alexzo

Alexzo is a technology company focused on AI-powered human enhancement. Visit alexzo.vercel.app for more information.

License

Apache 2.0