OpenAI lets GPT-Live voice model call Decisions API directly
The developer update removes the app relay step; OpenAI says Decisions returns results about 10 times faster than the Responses API.
OpenAI announced on October 15, 2026, that its GPT-Live voice model can now call the Decisions API directly, according to aitimes.com. The change is a developer feature and does not add new voice capabilities for ChatGPT users.
Previously, an app had to relay requests between the voice model and the Decisions API, which added a step to the process. The update removes that middle layer for developers who wire the two together.
The Decisions API analyzes text and images and returns answers in a fixed format. OpenAI says it returns results about 10 times faster than the general-purpose Responses API.
Developers can configure GPT-Live to recognize specific requests and call Decisions directly. They can also trigger a decision when a specific segment is detected while the user's speech or the AI's response is being converted to text.
Decisions remains a separate beta feature, so developers must check its terms and costs before building it into an application.
Quick answers
Does the GPT-Live update add new voice features to ChatGPT?
No. OpenAI says the change is a developer API feature and does not add new voice features for ChatGPT users.
How much faster is the Decisions API than the Responses API?
OpenAI says Decisions returns results about 10 times faster than the general-purpose Responses API.
Is the Decisions API generally available?
It is a separate beta feature, and developers must check its terms and costs.