Open-source tool to analyze and optimize LLM API spend (OpenAI / Anthropic CSV)

I noticed most teams don’t really know where their LLM costs are coming from , especially when using higher-tier models for simple prompts.

Built a lightweight tool that:

• Parses OpenAI /Anthropic usage exports
• Identifies cost outliers
• Estimates savings by model switching
• Classifies prompt complexity based on token count
• Surfaces optimization opportunities

No integration needed, just upload the usage CSV.

Open source:
https://github.com/priyanka-28/llm-cost-optimizer