TokenOptim shows token counts + costs across 6 AI platforms (Claude, ChatGPT, Gemini, Grok, Kimi, GLM). Game-changer: Semantic caching catches similar prompts and reuses responses for 60-90% savings. Competitors only do exact-hash (0-20%). Real impact: Saved $200+ Week 1, $420/month projected. Features: ✓ Real-time token counting ✓ Smart compression (15-30%) ✓ Intelligent caching (60-90%) ✓ Cost comparison ✓ Open source, zero tracking Install in 30 seconds. Free forever.