Anthropic launched its top-tier AI model Claude Mythos with unprecedented pricing at 125 dollars per million output tokens nearly 8 times costlier than its flagship Claude Sonnet This high cost has spurred developers to adopt extreme token-saving methods like the popular Caveman technique on GitHub which strips all pleasantries and articles to cut token usage by about 65 without losing accuracy Practical tips include editing prompts in place starting new conversations regularly combining questions and using low-cost models for basic tasks to manage expenses in this new high-cost AI era