GPT-5.3 Instant 将幻觉减少26.8%，OpenAI 优先考虑准确性而非速度

OpenAI has rolled out GPT-5.3 Instant, positioning it as a meaningful refinement of its most widely deployed model rather than a raw performance leap. According to the company, the updated system reduces hallucinations by up to 26.8 percent compared to its predecessor, while also cutting down on unnecessary refusals and awkward, off-tone responses that users have increasingly criticized in recent months. GPT-5.3 Instant effectively serves as the default model for many ChatGPT users and remains one of the most heavily utilized models through OpenAI’s API. …