OpenAI's GPT-5.5 is a frontier model with a 1M+ context window, reasoning, and broad tool support including web search, file search, image generation, code interpreter, hosted shell, computer use, and MCP. Knowledge cutoff December 1, 2025.
OpenAI's GPT-5.5 is a frontier model with a 1M+ context window, reasoning, and broad tool support including web search, file search, image generation, code interpreter, hosted shell, computer use, and MCP. Knowledge cutoff December 1, 2025.