# JetBrains benchmark finds RTK token compression tool shows 7.6% cost increase on Claude Code

> Source: <https://www.getreadyforagents.com/news/claude-code-token-cost-measurement/>
> Published: 2026-07-25 20:05:04+00:00

# JetBrains benchmark finds RTK token compression tool shows 7.6% cost increase on Claude Code

JetBrains measured Rust Token Killer (RTK), a compression proxy for Claude Code, and found it increased token costs by 7.6 percent at low reasoning effort (p=0.004) and showed no measurable change at high effort, contrary to RTK's advertised 60-90 percent savings, according to the JetBrains AI blog. Task quality remained unchanged in both test arms.

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[Read article](https://blog.jetbrains.com/ai/2026/07/rtk-claude-code-token-savings/) - Social
[HN thread](https://news.ycombinator.com/item?id=49048571)

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