Madras1/Jade0.6b

Hugging Face
TEXT GENERATIONPricing:Input $0.04 / Cached $0.008 / Output $0.08Concurrent Unit Cost:1Model Size:0.8BQuant:BF16Context Size:32kTool Calling:SupportedPublished:Mar 25, 2026License:apache-2.0Architecture:Transformer Open Weights Featherless Exclusive Warm

Jade0.6b is a Brazilian Portuguese conversational finetune of the Qwen3 0.6B parameter model, developed by Madras1. It is specifically designed to express a strong, persistent persona, excelling in PT-BR chat and chatbot use cases with colloquial language, slang, and a WhatsApp-like tone. This model's unique training embeds its informal, friendly persona directly into its weights, making it ideal for character-style interaction.

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Overview

Jade0.6b is a Brazilian Portuguese (pt-BR) conversational finetune of the unsloth/qwen3-0.6b base model, developed by Madras1. Its primary differentiator is its persona-first design, where the model is intentionally finetuned to speak like "Jade" even without a strong system prompt. This results in informal phrasing, slang, and a friendly, conversational tone from the very first interaction.

Key Capabilities

  • Native Brazilian Portuguese: Trained to speak naturally in pt-BR, incorporating colloquialisms and abbreviations.
  • Consistent Persona: Maintains a strong, informal, and chat-oriented "Jade" persona, embedded directly into its weights rather than relying solely on prompting.
  • Informal Communication: Utilizes abbreviations like vc, light slang (tmj, mano, tlgd), and a human-like, less robotic tone.
  • Conversational Finetune: Optimized for chat-like situations through synthetic prompt generation and persona-driven response distillation.

Training Approach

The model was trained using an Unsloth-based SFT pipeline on approximately 25,000 examples over 3 epochs. A key aspect of its training involved the removal of system persona instructions during Supervised Fine-Tuning (SFT), ensuring the model directly internalized the Jade style. This allows it to exhibit personality, abbreviations, and slang even with simple user-only prompts.

Recommended Use

  • Good for:
    • PT-BR chat assistants
    • Persona bots
    • WhatsApp-style conversational agents
    • Lightweight entertainment or social AI experiences
  • Less ideal for:
    • Formal writing or highly neutral assistant behavior
    • High-stakes legal, medical, or financial contexts

Limitations

Due to its persona-oriented nature, Jade0.6b may sound informal in contexts requiring a neutral tone and might over-index on chat style depending on the prompt. It prioritizes persona consistency over strict formality.

Finetunes
1 models