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Overview

The image-to-text pipeline converts images into text captions. This pipeline is powered by the latest models in the HuggingFace text-to-image pipeline.

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Models

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Warm Models

The current warm model requested for the image-to-text pipeline is:

For faster responses with different image-to-text diffusion models, ask Orchestrators to load it on their GPU via the ai-video channel in Discord Server.

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On-Demand Models

The following models have been tested and verified for the image-to-text pipeline:

If a specific model you wish to use is not listed, please submit a feature request on GitHub to get the model verified and added to the list.

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Basic Usage Instructions

For a detailed understanding of the image-to-text endpoint and to experiment with the API, see the Livepeer AI API Reference.

To create an image caption using the image-to-text pipeline, submit a POST request to the Gateway’s image-to-text API endpoint:

curl -X POST "https://<GATEWAY_IP>/image-to-text" \
    -F model_id=Salesforce/blip-image-captioning-large \
    -F image=@<PATH_TO_FILE>

In this command:

  • <GATEWAY_IP> should be replaced with your AI Gateway’s IP address.
  • model_id is the diffusion model to use.
  • image is the path to the image file to be captioned.
Maximum request size: 50 MB

For additional optional parameters, refer to the Livepeer AI API Reference.

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Orchestrator Configuration

To configure your Orchestrator to serve the image-to-text pipeline, refer to the Orchestrator Configuration guide.

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System Requirements

The following system requirements are recommended for optimal performance:

We are planning to simplify the pricing in the future so orchestrators can set one AI price per compute unit and have the system automatically scale based on the model’s compute requirements.

The pricing for the image-to-text pipeline is based on competitor pricing. However, we strongly encourage orchestrators to set their own pricing based on their costs and requirements. Setting a competitive price will help attract more jobs, as Gateways can set their maximum price for a job. The current recommended pricing for this pipeline is 2.5e-10 USD per input pixel (height * width).

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API Reference

API Reference

Explore the image-to-text endpoint and experiment with the API in the Livepeer AI API Reference.

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