LLMeter

A developer detailed three costly mistakes made while using the OpenAI API, including failing to set token limits, not tracking API calls per user, and using expensive models for simple tasks. The dev…

LLMeter, an open-source tool, enables developers to monitor LLM costs in Prometheus and Grafana without routing traffic through a proxy. By exposing a /metrics endpoint, it allows Prometheus to scrape…

A developer found that GPT-5.4 produces 6.5x more output tokens per code fix than Claude Opus 4.6, with no improvement in correctness. The over-editing tax costs an extra $1,650 per month for a 50-eng…