Image to Text Node

The image to text node generates text based on an image. Often used to extract data from an image.

For providing the image file you have two options:

1. If toggle is on Upload: Upload a file by clicking the upload button

2. If toggle is on Variable: Reference image files from other nodes

Node Inputs

• System (Instructions): Tell the AI model how to utilize the data (e.g., extract all the text from the image) or behave.

  • Type: Text

• Prompt: The data that is sent to the LLM.

  • Type: Text

• Image: The image that is sent to the LLM.

  • Type: Image

Node Parameters

Face of the node

• Provider: Provider of the AI model you want to use. The default provider is OpenAI.

• Model: Name of the model you want to use.

• Use Personal API Key: This allows you to enter your API key.

In the gear

• Max tokens: The maximum amount of input + output tokens the model will take in and generate per run (1 token = 4 characters). Note: different models have different token limits and the workflow will error if the max token is reached.

• Temperature: The diversity of the LLM generation. To have more diverse or creative generations, increase the temperature. To have a more deterministic response, decrease the temperature.

• Top P: The Top P parameter constrains how many tokens the LLM considers for generation at each step. For more diverse responses increase top p towards a maximum value of 1.0.

• Stream Response: Check to have responses from the LLM stream. Ensure to change the Type on the output node to “Streamed Text”.

• JSON Output: Check to ​​to have the model return a structured JSON output rather than pure text.

Node Outputs

• text: The text generated from the LLM.

  • Type: Text

  • Example usage: {{ai_image_to_text_0.text}}

• tokens_used: The number of tokens used for the run

  • Type: Integer

  • Example usage: {{ai_image_to_text_0.tokens_used}}