AIHOT 于 2026-08-16 收录了“Claude 系统提示文档：各模型版本更新日期一览”这一公开动态。以下先呈现从来源页面抓取的正文，再给出 AIHOT 摘要与 TopoReduce 编辑解读。
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System Prompts - Claude Platform Docs
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Claude's web interface (claude.ai) and mobile apps use a system prompt to provide up-to-date information, such as the current date, to Claude at the start of every conversation. The system prompt also encourages certain behaviors, such as always providing code snippets in Markdown. This prompt is periodically updated to improve Claude's responses. These system prompt updates do not apply to the Claude API. Where a model has multiple dated entries below, updates between versions are bolded. Starting with the Claude 4.6 generation, each model ID is a single fixed snapshot, so those models have one entry.
Claude Opus 5
July 24, 2026
Claude Fable 5
June 9, 2026
Claude Opus 4.8
May 28, 2026
Claude Opus 4.7
April 16, 2026
Claude Sonnet 4.6
February 17, 2026
Claude Opus 4.6
February 5, 2026
Claude Opus 4.5
January 18, 2026
November 24, 2025
Claude Haiku 4.5
January 18, 2026
November 19, 2025
October 15, 2025
Claude Sonnet 4.5
January 18, 2026
November 19, 2025
September 29, 2025
Claude Opus 4.1
August 5, 2025
Claude Opus 4
August 5, 2025
July 31, 2025
May 22, 2025
Claude Sonnet 4
August 5, 2025
July 31, 2025
May 22, 2025
Claude Sonnet 3.7
February 24, 2025
Claude Sonnet 3.5
November 22, 2024
October 22, 2024
September 9, 2024
July 12, 2024
Claude Haiku 3.5
October 22, 2024
Claude Opus 3
July 12, 2024
Claude Haiku 3
July 12, 2024
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Claude's web interface (claude.ai) and mobile apps use a system prompt to provide up-to-date information, such as the current date, to Claude at the start of every conversation. The system prompt also encourages certain behaviors, such as always providing code snippets in Markdown. This prompt is periodically updated to improve Claude's responses. These system prompt updates do not apply to the Claude API. Where a model has multiple dated entries below, updates between versions are bolded. Starting with the Claude 4.6 generation, each model ID is a single fixed snapshot, so those models have one entry.
Claude Opus 5
July 24, 2026
Claude Fable 5
June 9, 2026
Claude Opus 4.8
May 28, 2026
Claude Opus 4.7
April 16, 2026
Claude Sonnet 4.6
February 17, 2026
Claude Opus 4.6
February 5, 2026
Claude Opus 4.5
January 18, 2026
November 24, 2025
Claude Haiku 4.5
January 18, 2026
November 19, 2025
October 15, 2025
Claude Sonnet 4.5
January 18, 2026
November 19, 2025
September 29, 2025
Claude Opus 4.1
August 5, 2025
Claude Opus 4
August 5, 2025
July 31, 2025
May 22, 2025
Claude Sonnet 4
August 5, 2025
July 31, 2025
May 22, 2025
Claude Sonnet 3.7
February 24, 2025
Claude Sonnet 3.5
November 22, 2024
October 22, 2024
September 9, 2024
July 12, 2024
Claude Haiku 3.5
October 22, 2024
Claude Opus 3
July 12, 2024
Claude Haiku 3
July 12, 2024
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AIHOT 摘要
Anthropic 公布了 Claude 网页端（claude.ai）和移动应用使用的系统提示，该提示在每次对话开始时向 Claude 提供当前日期等最新信息，并鼓励特定行为（如始终用 Markdown 提供代码片段），且定期更新以改进回复。
为什么值得关注
该条目被 AIHOT 归入公开 AI 动态，具体结论和细节以原文页面为准。
工程化解读
从 TopoReduce 的工程视角看，这条信息属于“产品与工具”主题。它的价值不只在于一个新产品或新观点本身，还在于说明 AI 系统正在如何影响模型接入、智能体协作、研发流程、基础设施和团队决策。实际采用前，应结合原文确认版本、适用范围、价格和运行条件。
- 发布时间：2026-08-16；AIHOT 分类：产品与工具。
- AIHOT 标签：
- AIHOT 判断：该条目被 AIHOT 归入公开 AI 动态，具体结论和细节以原文页面为准。
- AIHOT 评分：26；评分用于站内排序，不等同于独立评测结论。
TopoReduce 编辑观察
当 AI 动态进入真实生产环境，团队需要同时关注能力边界、数据来源、调用成本、权限控制和可回滚性。把单条新闻放回完整工程链路中阅读，比只看标题更有助于判断它是否适合自己的产品和工作流。