Dev.to
6/26/2026

I Built a Prompt Compressor That Saves 65% on LLM Costs — Here's the Story
Short summary
Arjun built SuperCompress, a CPU-side prompt compression system that eliminates 65% of LLM tokens while maintaining 100% oracle recall. The tool reduces infrastructure costs and environmental impact (29 kWh, 12 kg CO₂ per 1M compressions), and ships with open-source code, hosted API, and Python client.
- •Intelligent prompt compression saves 65% tokens with 100% accuracy (no information loss)
- •Environmental savings: 29 kWh energy, 12 kg CO₂ per 1M compressions
- •MIT open source with hosted API, Python client, and integration guides for LangChain/OpenAI
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