The ruby-openai gem wraps OpenAI’s API, making it straightforward to integrate models such as GPT-4, GPT-3.5, and DALL·E into Rails applications.

It provides a clean, well-documented API that covers chat completions, embeddings, image generation, and moderation endpoints.

Installation is quick: add the gem, set your API key, and call the client methods in your Rails services or controllers.

It provides reliability, completeness, and ease of use, while weaknesses include dependency on external API performance and costs.

Alternatives include directly calling the API via Faraday or HTTParty, but ruby-openai provides the most convenient and idiomatic interface for Ruby developers.