Stephanie2: Thinking, Waiting, and Making Decisions Like Humans in Step-by-Step AI Social Chat

Fuente: arXiv
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Autori principali: Yang, Hao, Lu, Hongyuan, Yang, Dingkang, Yang, Wenliang, Sun, Peng, Zhang, Xiaochuan, Xiao, Jun, He, Kefan, Lam, Wai, Liu, Yang, Zeng, Xinhua
Natura: Preprint
Pubblicazione: 2026
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author Yang, Hao
Lu, Hongyuan
Yang, Dingkang
Yang, Wenliang
Sun, Peng
Zhang, Xiaochuan
Xiao, Jun
He, Kefan
Lam, Wai
Liu, Yang
Zeng, Xinhua
author_facet Yang, Hao
Lu, Hongyuan
Yang, Dingkang
Yang, Wenliang
Sun, Peng
Zhang, Xiaochuan
Xiao, Jun
He, Kefan
Lam, Wai
Liu, Yang
Zeng, Xinhua
contents Instant-messaging human social chat typically progresses through a sequence of short messages. Existing step-by-step AI chatting systems typically split a one-shot generation into multiple messages and send them sequentially, but they lack an active waiting mechanism and exhibit unnatural message pacing. In order to address these issues, we propose Stephanie2, a novel next-generation step-wise decision-making dialogue agent. With active waiting and message-pace adaptation, Stephanie2 explicitly decides at each step whether to send or wait, and models latency as the sum of thinking time and typing time to achieve more natural pacing. We further introduce a time-window-based dual-agent dialogue system to generate pseudo dialogue histories for human and automatic evaluations. Experiments show that Stephanie2 clearly outperforms Stephanie1 on metrics such as naturalness and engagement, and achieves a higher pass rate on human evaluation with the role identification Turing test.
format Preprint
id arxiv_https___arxiv_org_abs_2601_05657
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Stephanie2: Thinking, Waiting, and Making Decisions Like Humans in Step-by-Step AI Social Chat
Yang, Hao
Lu, Hongyuan
Yang, Dingkang
Yang, Wenliang
Sun, Peng
Zhang, Xiaochuan
Xiao, Jun
He, Kefan
Lam, Wai
Liu, Yang
Zeng, Xinhua
Computation and Language
Artificial Intelligence
Instant-messaging human social chat typically progresses through a sequence of short messages. Existing step-by-step AI chatting systems typically split a one-shot generation into multiple messages and send them sequentially, but they lack an active waiting mechanism and exhibit unnatural message pacing. In order to address these issues, we propose Stephanie2, a novel next-generation step-wise decision-making dialogue agent. With active waiting and message-pace adaptation, Stephanie2 explicitly decides at each step whether to send or wait, and models latency as the sum of thinking time and typing time to achieve more natural pacing. We further introduce a time-window-based dual-agent dialogue system to generate pseudo dialogue histories for human and automatic evaluations. Experiments show that Stephanie2 clearly outperforms Stephanie1 on metrics such as naturalness and engagement, and achieves a higher pass rate on human evaluation with the role identification Turing test.
title Stephanie2: Thinking, Waiting, and Making Decisions Like Humans in Step-by-Step AI Social Chat
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2601.05657