AI Provider for OpenAI

This plugin provides OpenAI integration for the PHP AI Client SDK. It enables WordPress sites to use OpenAI's GPT models for text generation, DALL-E for image generation, and other AI capabilities. Features:

• Text generation with GPT models
• Image generation with DALL-E models
• Function calling support
• Web search support
• Automatic provider registration

Available models are dynamically discovered from the OpenAI API, including GPT models for text generation, DALL-E and GPT Image models for image generation, and TTS models for text-to-speech. Requirements:

• PHP 7.4 or higher
• For WordPress 6.9, the wordpress/php-ai-client package must be installed
• For WordPress 7.0 and above, no additional changes are required
• OpenAI API key

1.1.0 - 2026-08-17 Added

• Support for OpenAI embedding models, including batch inputs, custom dimensions, token usage, and result metadata (#34).
• Support for fine-tuned OpenAI models by deriving capabilities from their underlying base models (#17).
• Support for editing and refining generated images using reference images and OpenAI’s image-editing endpoint (#29).
• A TokenLimitReachedException when OpenAI responses are incomplete because the maximum output-token limit was reached (#10).

Changed

• Made sampling-option capabilities model-aware for reasoning models, added Responses API support for log probabilities, and reject incompatible sampling and reasoning configurations before sending a request (#40).
• Bumped WordPress tested-up-to version 7.1 (#43).

Fixed

• Function-call name handling for names that do not meet OpenAI’s naming requirements, while preserving the original PHP AI Client function names returned to callers (#31).

1.0.3

• Add a provider logo to the metadata if the client version > 1.3.0 (#19).
• Fix mapping of models that support multimodal inputs (#22).

1.0.2

• Add plugin directory assets by @shaunandrews in https://github.com/WordPress/ai-provider-for-openai/pull/7
• Update tags in readme.txt by @jeffpaul in https://github.com/WordPress/ai-provider-for-openai/pull/9
• Fix missing input and output modality combinations. by @felixarntz in https://github.com/WordPress/ai-provider-for-openai/pull/11
• Add provider description by @felixarntz in https://github.com/WordPress/ai-provider-for-openai/pull/12

1.0.1

• Initial release of the plugin
• Support for GPT text generation models
• Support for DALL-E image generation models
• Function calling support
• Web search support

1.0.0

• Initial release of the Composer package