OpenAI announced several updates at their DevDay, including cheaper token pricing for GPT-4 Turbo and GPT-3.5 Turbo, a new Whisper v3 model for improved speech recognition, and a 'Consistency Decoder' for image improvement. Additionally, the introduction of Copyright Shield to defend against copyright infringement claims, and the release of custom ChatGPT versions for tailored use, named GPTs, were highlighted1.