What is GPT 5.4?
Tavory's live catalog currently lists GPT 5.4 from OpenAI. The catalog describes it as gpt-5.4 is openai's latest frontier model, unifying the codex and gpt lines into a single system. it features a 1m+ token context window (922k input, 128k output) with support for text and image inputs, enabling high-context reasoning, coding, and multimodal analysis within the same workflow. the model delivers improved performance in coding, document understanding, tool use, and instruction following, capable of generating production-quality code, synthesizing information across multiple sources, and executing complex multi-step workflows with fewer iterations and greater token efficiency.. Availability, plan access and provider pricing can change and are checked again when a request is sent.