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Real-world test of rtk, headroom, caveman finds 3.7% token savings

Real-world test of rtk, headroom, caveman finds 3.7% token savingscodepointer.substack.com

An analysis of three open-source token reduction tools—rtk, headroom, and caveman—on a 614M-token corpus of Claude Code sessions found only 3.7% cost savings, far below the 60–90% claimed. The tools compress different parts of the agent's token stream, but real workloads limit effectiveness.

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Jun 18, 4:16 PM
Real-world test of rtk, headroom, caveman finds 3.7% token savings — AIBriefs