According to OpenAI, GPT-5.1 is now available in the API, enabling developers to integrate the model into production workflows immediately, which is relevant for trading and crypto development teams seeking model-in-the-loop automation; source: OpenAI. According to OpenAI, the release delivers faster adaptive reasoning, extended prompt caching, improved coding performance, and new apply_patch and shell tools, expanding the toolset accessible via the API; source: OpenAI.