
AI Models
OpenAI Releases GPT-5.5 and GPT-5.5 Pro to API
OpenAI added GPT-5.5 and GPT-5.5 Pro to its Chat Completions and Responses APIs on April 23, 2026. These models support a 1M token context window, image inputs, and various tools. The changelog details numerous updates from 2023 to 2026, including image, video, audio models, agent tools, and API improvements.
Apr 245 minNeura News