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RTK reports token savings, but our cost benchmarks disagree
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Overview
RTK (Rust Token Killer) filters and compresses terminal output before the AI agent reads it. With over 79k GitHub stars today, RTK is one of the most popular tools to make AI coding cheaper. One X post saying RTK could cut Claude Code tokens by up to 60% reached 313K views. Yet JetBrains’s SkillsBench run found no savings. The README has a disclaimer: RTK cuts up to 90% of the bash output your age...
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