I think the competition between OpenAI and Anthropic is sufficient to explain the decline in AI prices, but that's not really the point.
Whether it's OpenAI or Anthropic or open source models, less spend going to AI would, I think very reasonably, be net-negative for AI infra.
Unless if the price declines are met with increases in actual spend that can then be reinvested in infra, but we don't see that today, so I cannot support that view with data. Spend seems to be slowing.