OpenAI Chat Model Connector

This node establishes a connection with an OpenAI Chat Model. After successfully authenticating using the OpenAI Authenticator node, you can select a chat model from a predefined list.

If OpenAI releases a new model that is not among the listed models, you can also select from a list of all available OpenAI models but you have to ensure that selected model is compatible with the OpenAI Chat API.

Note that chat models can also be used as LLMs because they are actually a subcategory of LLMs that are optimized for chat-like applications. Find documentation about the latest models at OpenAI.

Options

OpenAI Chat Model Selection

Model ID

Select a chat-optimized OpenAI model to be used.

Specific Model ID

Select from a list of all available OpenAI models. The model chosen has to be compatible with OpenAI's Chat API. This configuration will overwrite the default model configurations when set.

Model Parameters

Maximum Response Length (token)

The maximum number of tokens to generate.

The token count of your prompt plus max_tokens cannot exceed the model's context length.

Temperature

Sampling temperature to use, between 0.0 and 2.0. Higher values means the model will take more risks. Try 0.9 for more creative applications, and 0 for ones with a well-defined answer. It is generally recommend altering this or top_p but not both.

Completions generation

How many chat completion choices to generate for each input message. This parameter generates many completions and can quickly consume your token quota.

Top-p sampling

An alternative to sampling with temperature, where the model considers the results of the tokens (words) with top_p probability mass. Hence, 0.1 means only the tokens comprising the top 10% probability mass are considered.

Input Ports

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Validated authentication for OpenAI.

Output Ports

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Configured OpenAI Chat Model connection.

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Installation

To use this node in KNIME, install the extension KNIME AI Extension (Labs) from the below update site following our NodePit Product and Node Installation Guide:

v5.2

A zipped version of the software site can be downloaded here.

Plugin provider: KNIME AG, Zurich, Switzerland
Plugin version: 5.2.1.202402071416
On NodePit since: 2024-02-07
Last update: 2024-05-10
KNIME versions: Since v5.2

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