FUNDA(@FundaAI):After the release of Astra, the throughput of OpenAI Fast has been declining, which indicates a large number of users and insufficient capacity. Fast is the model tier most sensitive to throughput. Yet this same pattern did not appear when Fable 5.1 was released. This further corroborates what Tibo said — that Astra is so popular that they've had no choice but to cap Pro subscriptions. Visit https://t.co/HSmgLNhKMw to subscribe to the FUNDA Substack. Within 12 hours of successful payment, you will receive an invitation email to the FUNDA Research Platform, after which you will have access to its features.

2026.09.10 20:39

After the release of Astra, the throughput of OpenAI Fast has been declining, which indicates a large number of users and insufficient capacity. Fast is the model tier most sensitive to throughput. Yet this same pattern did not appear when Fable 5.1 was released. This further corroborates what Tibo said — that Astra is so popular that they've had no choice but to cap Pro subscriptions. Visit to subscribe to the FUNDA Substack. Within 12 hours of successful payment, you will receive an invitation email to the FUNDA Research Platform, after which you will have access to its features.