Anthropic extends access to its Fable 5 model again due to compute constraints and demand uncertainty, while OpenAI announces increased efficiency and relaxed limits for GPT-5.6 Sol. This highlights a growing trend of model providers managing access and optimizing performance for their latest offerings. The ongoing uncertainty around Fable 5's availability may be impacting Anthropic's user acquisition compared to OpenAI's confident rollout of GPT-5.6 Sol.
Opening Kapyn…