[OpenAI to Retire GPT-5.3-Codex-Spark Model Next Week] According to Deep Tide TechFlow, on September 11, OpenAI's core product lead Tibo announced that OpenAI will retire the GPT-5.3-Codex-Spark model next week. He stated that while the model had performed well in the past, its usage has been steadily declining recently, and there are now significantly better-performing models available. Therefore, this decision is being made to make room for the development of future models.