Whenever I try to switch to GPT 5 from openai, I get: "model.model must be one of the following values: gpt-4.1-2025-04-14, gpt-4.1-mini-2025-04-14, gpt-4.1-nano-2025-04-14, gpt-4.1, gpt-4.1-mini, gpt-4.1-nano, chatgpt-4o-latest, o3, o3-mini, o4-mini, o1-mini, o1-mini-2024-09-12, gpt-4o-realtime-preview-2024-10-01, gpt-4o-realtime-preview-2024-12-17, gpt-4o-mini-realtime-preview-2024-12-17, gpt-4o-mini-2024-07-18, gpt-4o-mini, gpt-4o, gpt-4o-2024-05-13, gpt-4o-2024-08-06, gpt-4o-2024-11-20, gpt-4-turbo, gpt-4-turbo-2024-04-09, gpt-4-turbo-preview, gpt-4-0125-p…astus, gpt-4-0125-preview:northcentralus, gpt-4-0125-preview:southcentralus, gpt-4-1106-preview:australia, gpt-4-1106-preview:canadaeast, gpt-4-1106-preview:france, gpt-4-1106-preview:india, gpt-4-1106-preview:norway, gpt-4-1106-preview:swedencentral, gpt-4-1106-preview:uk, gpt-4-1106-preview:westus, gpt-4-1106-preview:westus3, gpt-4-0613:canadaeast, gpt-3.5-turbo-0125:canadaeast, gpt-3.5-turbo-0125:northcentralus, gpt-3.5-turbo-0125:southcentralus, gpt-3.5-turbo-1106:canadaeast, gpt-3.5-turbo-1106:westus"

GPT-5 is not currently a supported model. To resolve the error, use one of the valid model names such as

gpt-4.1

or

gpt-4o

. For example:

json
{
  "model": "gpt-4.1"
}

Refer to the [documentation](https://docs.vapi.ai/changelog/2025/4/15) for the full list of supported models. Source: - [April 15, 2025 Changelog](https://docs.vapi.ai/changelog/2025/4/15)

they'll probably add gpt-5 tomorrow. wait for it to appear in vapi UI

It's already in vapi ui!!! Their backend just doesn't support it yet

looks like it's live now

We are still working on it. It'll be live soon.