Plaid Speed Amp added a "Plaid" speed tier for modes using GPT-6 Astra, running inference requests up to 6× faster than normal requests at 6× the cost per token. The tier is selected in the new thread dialog's mode picker by moving the speed switch past Fast to Plaid, and works with both Amp-provided inference and linked ChatGPT subscriptions that support ultrafast. When Plaid is active, subagents and non-Plaid-enabled model inference fall back to fast and then standard speed. Amp now supports Plaid speed for modes that use GPT-6 Astra. Plaid inference requests run up to 6× faster than normal requests and cost 6× as much per token. Open the mode picker in the new thread dialog, choose a mode that uses GPT-6 Astra e.g., the default High mode , and move the speed switch past Fast to Plaid . Plaid works with both Amp-provided inference and linked ChatGPT subscriptions that support ultrafast. When Plaid is activated, subagents and non-Plaid-enabled model inference will fall back to fast and then standard speed.