OpenAI

OpenAI brand colours

Extracted from the artwork and ranked by how much of the mark each covers, not from a brand book, so treat them as observed rather than official.

• The broadest first-party surface: text, reasoning, realtime audio, image generation, embeddings, moderation and a hosted agent runtime, one key
• The Responses API is the current front door and carries most agentic features
• Its request format is the category's lingua franca, imitated by nearly every competitor and router