Over the past six months, we shipped 30+ models, features, and upgraded tools for the API.Our changelog has been busy. Here’s what you may have missed for the API:New models• GPT-5.5• GPT-5.4 mini• GPT-5.4 nano• GPT-Realtime-2• GPT-Realtime-Whisper• GPT-Realtime-Translate• GPT-Image-2Agent building blocks• Agents SDK harness & sandbox• Skills in the Responses API• Server-side compaction• WebSocket mode• Hosted shellMore ways to build• Admin API enhancements• OpenAI CLI• Models on Amazon Bedrock

During his victory address after he won the Democratic primary for New York's 12th Congressional District, Micah Lasher sent a message to OpenAI and Anthropic, two AI companies that poured millions of dollars into the race."I won't be taking cues from either of you when it comes to protecting our kids, our jobs and our environment," he said.