Open-source tool pxpipe hides text in PNGs to cut Claude Code and Fable 5 token costs up to 70%
70% token cost cuts. Developers are already gaming Claude's pricing with a simple PNG trick.
Why it matters
An open-source workaround is exposing pricing arbitrage in Anthropic's image-based billing model, forcing a reckoning on how AI platforms charge for input. This signals both developer creativity and a systemic vulnerability in token economics that could reshape pricing strategies across the industry.
The key facts
6 to knowpxpipe converts text prompts to PNGs to exploit image pixel-based pricing
59-70% reported cost savings on Claude Code and Fable 5
Tradeoff: accuracy and speed reduced for cost savings
Developer Steven Chong authored the tool
Open-source release enables widespread adoption of workaround
Targets Anthropic's image pricing model as vulnerability
Go to the source
The Decoderthe-decoder.com
Publisher excerpt: The open-source tool pxpipe converts long text prompts for Claude Code into compact PNGs, exploiting the fact that Anthropic charges for images by pixel size, not text content. Developer Steven Chong reports cost savings of 59 to 70 percent, at the price of accuracy and speed.