[OpenRouter: OpenAI Model Spending Surpasses Anthropic for the First Time in 2.5 Years] According to OpenRouter, user spending on OpenAI models on OpenRouter last week surpassed Anthropic models for the first time in over 2.5 years. Multiple developers and practitioners pointed out that this shift in 'wallet share' may be related to OpenAI's new endpoint price reduction, adjustments to default configurations of models in routing, as well as cost differences arising from different task types and context lengths.