部分验证70% 置信事实时间未知
OpenAI upgraded ChatGPT's default model to GPT 5.5 Instant, which reduced hallucinations by 52.5% compared to its predecessor in internal testing.
4
来源数
70%
置信度
中期 (~90 天)
时效性
2026/7/2
首次发现
有效期至：2026/9/30
来源
相关事实
待验证Information about GPT 5.5 Instant's hallucination improvements was disclosed by TechChange, The Word, and other media outlets75% 相似待验证GPT 5.5 Instant significantly reduces the probability of hallucinations when handling complex logical reasoning in sensitive domains compared to its predecessors75% 相似待验证GPT 5.5 Instant has roughly halved its hallucination rate in medical and legal domains compared to its predecessor.73% 相似部分验证OpenAI quietly launched GPT 5.5 Instant, replacing GPT 5.3 Instant as ChatGPT's default model and making it available to all users.72% 相似待验证OpenAI推出了GPT 5.3 Instant模型，主要改进在于减少塑造式对话风格，对话更自然流畅72% 相似
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