Stop Guessing Your LLM Costs: Track Every Token in Real Time

If you're building with LLMs in 2026, you already know the pain: API costs creep up silently. You fire off a dozen Claude or GPT calls during a coding session, and by end of month your bill is double what you expected. The problem isn't that LLMs are expensive - it's that you can't see what you're spending in real time. The Invisible Cost Problem Most developers track LLM costs reactively. You check your OpenAI dashboard once a week, maybe glance at Anthropic's usage page. By then the damage is done. That experimental RAG pipeline you left running? It burned through $40 in tokens overnight.