Why Open Source LLMs Are Crushing Closed-Source Models on Cost The Pricing Trap of Closed Models Closed-source providers like OpenAI and Anthropic price their models at levels that punish scale. GPT-4o charges per million input tokens and 5 per million output tokens. Claude 3 Opus sits at 5 input and 5 output. These rates create immediate pressure once usage exceeds a few million tokens per...