[Feature Request]: Availability of Future OpenAI Models (e.g., gpt-5) in LlamaIndex

[bgamiagpt-cyber]

Feature Description

Hello,
We are currently using LlamaIndex with llama-index-llms-openai and gpt-4o-mini for our RAG system.

We are interested in leveraging future, higher-performing OpenAI models, such as the rumored gpt-5, as soon as they become available.

Could you please advise on where we should monitor for announcements regarding the integration of these unreleased models into the llama-index-llms-openai package?

from llama_index.core import VectorStoreIndex, Settings
from llama_index.llms.openai import OpenAI

Settings.embed_model = embed_model
Settings.llm = OpenAI(model=OPENIAMODEL, api_key=OPENAI_API_KEY)
embed_model = OpenAIEmbedding(model="text-embedding-3-small")
The error that confirms that the model OpenAI GPT 5 is not yet available :

Unknown model 'gpt-5-mini'. Please provide a valid OpenAI model name in: o1, o1-2024-12-17, o1-preview, o1-preview-2024-09-12, o1-mini, o1-mini-2024-09-12, o3-mini, o3-mini-2025-01-31, gpt-4, gpt-4-32k, gpt-4-1106-preview, gpt-4-0125-preview, gpt-4-turbo-preview, gpt-4-vision-preview, gpt-4-1106-vision-preview, gpt-4-turbo-2024-04-09, gpt-4-turbo, gpt-4o, gpt-4o-audio-preview, gpt-4o-audio-preview-2024-12-17, gpt-4o-audio-preview-2024-10-01, gpt-4o-mini-audio-preview, gpt-4o-mini-audio-preview-2024-12-17, gpt-4o-2024-05-13, gpt-4o-2024-08-06, gpt-4o-2024-11-20, chatgpt-4o-latest, gpt-4o-mini, gpt-4o-mini-2024-07-18, gpt-4-0613, gpt-4-32k-0613, gpt-4-0314, gpt-4-32k-0314, gpt-3.5-turbo, gpt-3.5-turbo-16k, gpt-3.5-turbo-0125, gpt-3.5-turbo-1106, gpt-3.5-turbo-0613, gpt-3.5-turbo-16k-0613, gpt-3.5-turbo-0301, text-davinci-003, text-davinci-002, gpt-3.5-turbo-instruct, text-ada-001, text-babbage-001, text-curie-001, ada, babbage, curie, davinci, gpt-35-turbo-16k, gpt-35-turbo, gpt-35-turbo-0125, gpt-35-turbo-1106, gpt-35-turbo-0613, gpt-35-turbo-16k-0613

Thanks

Reason

No response

Value of Feature

No response

[logan-markewich]

@bgamiagpt-cyber they are already supported, but you need the latest version

pip install -U llama-index-llms-openai

New LLMs are usually supported the day they launch, in the latest package

[lamsalsamip1]

@logan-markewich , the full family of the models does not seem to be available however, especially the chat versions from Azure.

#20303