DavidAU/LFM2.5-1.2B-Instruct-Thinking-Claude-High-Reasoning
DavidAU/LFM2.5-1.2B-Instruct-Thinking-Claude-High-Reasoning is a 1.2 billion parameter instruction-tuned model by DavidAU, fine-tuned with Unsloth to integrate Claude Opus 4.5 High Reasoning capabilities. This model is optimized for generating explicit 'thinking/reasoning' text sections within its responses, rather than separate thought blocks, and supports a 32768 token context length. It excels at complex reasoning tasks, as evidenced by improved benchmark scores over its base model, making it suitable for applications requiring detailed internal thought processes.
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Overview
DavidAU/LFM2.5-1.2B-Instruct-Thinking-Claude-High-Reasoning is a 1.2 billion parameter model fine-tuned by DavidAU using Unsloth, specifically designed to emulate Claude Opus 4.5's high reasoning and thinking processes. It features a substantial 32768 token context window, enabling it to handle complex and lengthy prompts.
Key Capabilities
- Explicit Reasoning: Generates detailed 'thinking/reasoning' sections directly within the response text, which can range from a few sentences to several paragraphs.
- Enhanced Reasoning Performance: Shows improved benchmark scores across various tasks (e.g., ARC-Challenge, Hellaswag) compared to the standard LFM2.5 Instruct model.
- Contextual Depth: Leverages a 32k context window to process and reason over extensive inputs.
- Configurable Output: Users can influence the depth and presence of reasoning by using prompts like "Explain...", "Think deeply before you answer...", or "Plan out your reply...".
Good For
- Complex Problem Solving: Ideal for use cases requiring the model to articulate its thought process before providing a final answer.
- Interactive Reasoning: Suitable for applications where understanding the model's internal logic is beneficial, even if it requires regeneration to activate or expand reasoning sections.
- Creative Writing & Story Generation: Demonstrated ability to plan and execute detailed narratives with psychological depth and atmospheric tension, as shown in the horror story and sci-fi examples.
- Educational Tools: Can be used to illustrate reasoning steps for learning or analytical purposes.