OpenAI Slashes Inference Costs 50%, Runs ChatGPT on Hundreds of GPUs via System-Level Optimization
OpenAI reduces AI inference costs by over 50% through system-level optimizations: model quantization (FP16 to INT4/INT8), KV-Cache optimization, dynamic batching, and speculative decoding. Using only hundreds of NVIDIA GPUs to serve ChatGPT's unlogged-in traffic, inference gross margin jumps from 38% to 65%, nearing breakeven.
