sharick008/convfinqa-qwen3.5-4b

VISIONConcurrency Cost:1Model Size:4.5BQuant:BF16Ctx Length:32kTool Calling:SupportedPublished:Apr 27, 2026License:apache-2.0Architecture:Transformer Open Weights Cold

sharick008/convfinqa-qwen3.5-4b is a 4.5 billion parameter Qwen3.5 model fine-tuned by sharick008 for conversational, multi-turn numerical question answering over single-page financial documents, specifically 10-K pages. It is optimized for agentic loops using `calculate` and `submit_answer` tools, achieving 82.35% execution accuracy on the ConvFinQA dev split. This model excels at precise numerical reasoning and handling financial document specificities like table scaling and sign conventions.

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Model Overview

This model, sharick008/convfinqa-qwen3.5-4b, is a 4.5 billion parameter Qwen3.5 variant specifically fine-tuned for the ConvFinQA dataset. Its primary purpose is to accurately answer conversational, multi-turn numerical questions based on single-page financial documents, such as 10-K annual report excerpts. The fine-tuning process involved LoRA SFT on Tinker, merging the adapter directly into the base weights for a standalone HuggingFace model.

Key Capabilities

  • Conversational Numerical Reasoning: Designed to handle multi-turn dialogues requiring numerical answers from financial texts and tables.
  • Tool-Use Integration: Optimized for an agentic loop utilizing calculate for arithmetic expressions and submit_answer for final responses, with a specific system prompt and tool-call grammar.
  • High Accuracy on Financial Tasks: Achieves an 82.35% execution accuracy on the 421-record ConvFinQA dev split, a significant +12.79 point improvement over the base Qwen3.5-4B model.
  • Financial Document Specifics: Addresses common errors like sign errors and table-scale misinterpretations (e.g., "in millions" captions) that often challenge general-purpose LLMs.

Good For

  • Automated Financial Analysis: Ideal for applications requiring precise numerical extraction and calculation from structured and semi-structured financial documents.
  • Conversational AI in Finance: Building chatbots or agents that can answer specific numerical queries about company financials.
  • Research on Financial QA: A strong baseline or component for further research into numerical reasoning and tool-augmented LLMs in the financial domain.

Limitations

  • English Only: Trained exclusively on English-language US 10-K excerpts.
  • Single-Page Documents: Not designed for multi-document synthesis or retrieval from longer documents.
  • Specific Domain: Optimized for numerical reasoning over tables and short prose in US-equity 10-Ks; may not generalize to free-form financial commentary or other domains.