University AI Policy Tracker
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变更日志

University of British Columbia

Release-to-release tracker diff history with separate policy-text, newly-extracted claim, evidence, and source snapshot categories.

审核: 智能体已审核最后检查时间2026年7月19日最后更改时间2026年7月19日声明20来源14最新发布public-release-20260523-002版本记录4
大学页面公开 JSON月度报告大学索引

变更摘要

当前公共记录的新鲜度与审核状态。

University of British Columbia currently has 20 source-backed claim records and 14 official source attributions. Latest tracked changed date: 2026年7月19日. Latest tracker diff: 0 comparable policy-text changes, 10 newly extracted claims, 4 source snapshot changes.

此页面汇总了所有针对的公开版本差异记录 University of British Columbia。各个版本的发布快照仍可通过其特定发布的 URL 访问。

This tracker is not legal advice, not academic integrity advice, and not an official university statement unless a linked source is the university's own official page.

新提取的主张是追踪器的新增项，不一定是大学新发布的。来源快照变更显示了同一来源 URL 的哈希值变化，这本身并不代表政策发生了变化。

差异类别

此版本差异的语义分类。

政策文本0新提取的10证据0源快照4源文本0已添加来源1已移除来源0

组合版本差异

由该大学的所有公开发布快照生成的统一追踪器差异。

大学 of British Columbia combined release 差异

Combining 4 public release diffs for this university. Each section below keeps the original release-to-release comparison.

+40-8
11 # University of British Columbia AI policy diff
22 ## Newly extracted tracker claim
33 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
4+ai_tool_treatment: UBC says students must not be required to sign up for or use ChatGPT 5 with an account.
5+Evidence (en-US, d3989125ce8d): No. Students must not be required to sign up for or use ChatGPT 5 with an account.
6+Tracker checked at: 2026-05-23T18:20:00.000Z
47 ## Newly extracted tracker claim
58 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
9+academic_integrity: UBC says educators should tell students when and how to acknowledge GenAI use if GenAI tools are allowed in assessed work.
10+Evidence (en-US, 0a10700e5b9a): If GenAI tools are allowed for student use in assessed work, educators should make it clear to students when and how they should acknowledge its use.
11+Tracker checked at: 2026-05-23T18:20:00.000Z
612 ## Newly extracted tracker claim
713 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
14+privacy: UBC says instructors should not submit student work or personal information to AI detectors unless the detector has undergone UBC Privacy Impact Assessment review.
15+Evidence (en-US, 0a10700e5b9a): Instructors should not submit student academic work or personal information to AI detectors that have not undergone a UBC Privacy Impact Assessment.
16+Tracker checked at: 2026-05-23T18:20:00.000Z
817 ## Source snapshot hash changed
918 The same source URL has a different snapshot hash. This may reflect policy text, page layout, navigation, or metadata changes; it is not by itself a policy change.
10-Source https://ai.ctlt.ubc.ca/privacy-impact-assessments-for-generativeai-instructional-use-at-ubc/ snapshot 84b6befc047b89e306d54f512d4afcf4e10dae50d9fe4b682968f25f6fdf71c3
11-Tracker checked at: 2026-05-23T18:20:00.000Z
19+Source https://ai.ctlt.ubc.ca/privacy-impact-assessments-for-generativeai-instructional-use-at-ubc/ snapshot d3989125ce8d90036521247d22f7d10ec640a5bd858f3a58c8c844283733d251
20+Tracker checked at: 2026-05-23T18:20:00.000Z
1221 ## Source snapshot hash changed
1322 The same source URL has a different snapshot hash. This may reflect policy text, page layout, navigation, or metadata changes; it is not by itself a policy change.
14-Source https://genai.ubc.ca/guidance/teaching-learning-guidelines/guidelines-for-all-uses-of-genai-in-teaching-learning/ snapshot 6bbb5fcbff690d26cad89c3e3f9fc7e41059818f7cfd3f822574310dc7bb1cbd
15-Tracker checked at: 2026-05-23T18:20:00.000Z
23+Source https://genai.ubc.ca/guidance/teaching-learning-guidelines/guidelines-for-all-uses-of-genai-in-teaching-learning/ snapshot 0a10700e5b9ae757ebb2e087e23f3969882265c8e7727c23a77f543c3319f882
24+Tracker checked at: 2026-05-23T18:20:00.000Z
1625 ## Source snapshot hash changed
1726 The same source URL has a different snapshot hash. This may reflect policy text, page layout, navigation, or metadata changes; it is not by itself a policy change.
18-Source https://ai.ctlt.ubc.ca/privacy-impact-assessments-for-generativeai-instructional-use-at-ubc/ snapshot d3989125ce8d90036521247d22f7d10ec640a5bd858f3a58c8c844283733d251
19-Tracker checked at: 2026-05-10T14:00:00Z
27+Source https://ai.ctlt.ubc.ca/privacy-impact-assessments-for-generativeai-instructional-use-at-ubc/ snapshot 84b6befc047b89e306d54f512d4afcf4e10dae50d9fe4b682968f25f6fdf71c3
28+Tracker checked at: 2026-05-10T14:00:00Z
2029 ## Source snapshot hash changed
2130 The same source URL has a different snapshot hash. This may reflect policy text, page layout, navigation, or metadata changes; it is not by itself a policy change.
22-Source https://genai.ubc.ca/guidance/teaching-learning-guidelines/guidelines-for-all-uses-of-genai-in-teaching-learning/ snapshot 0a10700e5b9ae757ebb2e087e23f3969882265c8e7727c23a77f543c3319f882
23-Tracker checked at: 2026-05-10T14:00:00Z
31+Source https://genai.ubc.ca/guidance/teaching-learning-guidelines/guidelines-for-all-uses-of-genai-in-teaching-learning/ snapshot 6bbb5fcbff690d26cad89c3e3f9fc7e41059818f7cfd3f822574310dc7bb1cbd
32+Tracker checked at: 2026-05-10T14:00:00Z
2433 ## Newly extracted tracker claim
2534 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
35+ai_tool_treatment: UBC lists generative AI tools by whether they are approved for required instructional use.
36+Evidence (en-US, d3989125ce8d): Privacy Impact Assessments for GenerativeAI Instructional Use at UBC
37+Tracker checked at: 2026-05-23T18:20:00.000Z
2638 ## Newly extracted tracker claim
2739 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
40+ai_tool_treatment: UBC allows required instructional use of Microsoft Copilot for Organizations with caution when students use UBC credentials and avoid personal information or intellectual property.
41+Evidence (en-US, d3989125ce8d): Yes, with caution: Students should log in with their UBC credentials, be reminded not to enter personal information or intellectual property into the tool.
42+Tracker checked at: 2026-05-23T18:20:00.000Z
2843 ## Newly extracted tracker claim
2944 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
45+teaching: UBC says instructors, supervisors, and programs should clearly communicate permitted and prohibited GenAI use to students.
46+Evidence (en-US, 0a10700e5b9a): Instructors, supervisors, and programs should clearly communicate to students the permitted and/or prohibited use of GenAI in their academic work.
47+Tracker checked at: 2026-05-23T18:20:00.000Z
3048 ## Newly extracted tracker claim
3149 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
50+academic_integrity: UBC strongly discourages use of AI-generated-content detectors because of concerns about effectiveness, accuracy, bias, privacy, and intellectual property.
51+Evidence (en-US, 0a10700e5b9a): The use of applications to detect AI-generated content is strongly discouraged at this time, due to concerns about effectiveness, accuracy, bias, privacy, and intellectual property.
52+Tracker checked at: 2026-05-23T18:20:00.000Z
3253 ## Newly extracted tracker claim
3354 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
55+privacy: UBC says a Privacy Impact Assessment is required for university tools and initiatives that handle personal information.
56+Evidence (en-US, 0dd15e2aa73b): Under British Columbia’s Freedom of Information and Protection of Privacy Act, a Privacy Impact Assessment (PIA) is required for university tools and initiatives that handle personal information.
57+Tracker checked at: 2026-05-23T18:20:00.000Z
3458 ## Newly extracted tracker claim
3559 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
60+privacy: UBC conducts Privacy Impact Assessments case by case to mitigate privacy risks associated with information handling.
61+Evidence (en-US, 0dd15e2aa73b): At UBC, PIAs are conducted on a case-by-case basis, with a focus on proactively mitigating privacy risks associated with information handling.
62+Tracker checked at: 2026-05-23T18:20:00.000Z
3663 ## Newly extracted tracker claim
3764 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
65+ai_tool_treatment: Copilot Chat (Basic) is listed for University of British Columbia in an official university AI tools source. Derived availability: allowed. Derived endorsement type: institutionally licensed or procured.
66+Evidence (en, 5a063209dc9f): UBC IT says Copilot Chat (Basic) is available to eligible UBC students, faculty, and staff through UBC's Microsoft 365 environment and is included as part of UBC's Microsoft 365 licensing for eligible users.
67+Tracker checked at: 2026-07-15T21:04:43.896Z
3868 ## Source attribution added
3969 An official source attribution was added to the tracker record.
70+Source https://it.ubc.ca/services/artificial-intelligence/microsoft-copilot-ubc snapshot 5a063209dc9f82dbcf2607adfadd57b8f6861d2d3939386baace4bd7e732c7b9
71+Tracker checked at: 2026-07-15T21:04:43.896Z

版本历史

4 public release diffs

public-release-20260523-002

与 public-release-20260523-001 相比。

政策文本0新提取的3源快照2源文本0
版本差异差异 JSON

大学 of British Columbia public-release-20260523-002 差异

将 public-release-20260523-001 与 public-release-20260523-002 进行比较。

+13-4
11 # University of British Columbia AI policy diff
22 ## Newly extracted tracker claim
33 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
4+ai_tool_treatment: UBC says students must not be required to sign up for or use ChatGPT 5 with an account.
5+Evidence (en-US, d3989125ce8d): No. Students must not be required to sign up for or use ChatGPT 5 with an account.
6+Tracker checked at: 2026-05-23T18:20:00.000Z
47 ## Newly extracted tracker claim
58 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
9+academic_integrity: UBC says educators should tell students when and how to acknowledge GenAI use if GenAI tools are allowed in assessed work.
10+Evidence (en-US, 0a10700e5b9a): If GenAI tools are allowed for student use in assessed work, educators should make it clear to students when and how they should acknowledge its use.
11+Tracker checked at: 2026-05-23T18:20:00.000Z
612 ## Newly extracted tracker claim
713 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
14+privacy: UBC says instructors should not submit student work or personal information to AI detectors unless the detector has undergone UBC Privacy Impact Assessment review.
15+Evidence (en-US, 0a10700e5b9a): Instructors should not submit student academic work or personal information to AI detectors that have not undergone a UBC Privacy Impact Assessment.
16+Tracker checked at: 2026-05-23T18:20:00.000Z
817 ## Source snapshot hash changed
918 The same source URL has a different snapshot hash. This may reflect policy text, page layout, navigation, or metadata changes; it is not by itself a policy change.
10-Source https://ai.ctlt.ubc.ca/privacy-impact-assessments-for-generativeai-instructional-use-at-ubc/ snapshot 84b6befc047b89e306d54f512d4afcf4e10dae50d9fe4b682968f25f6fdf71c3
11-Tracker checked at: 2026-05-23T18:20:00.000Z
19+Source https://ai.ctlt.ubc.ca/privacy-impact-assessments-for-generativeai-instructional-use-at-ubc/ snapshot d3989125ce8d90036521247d22f7d10ec640a5bd858f3a58c8c844283733d251
20+Tracker checked at: 2026-05-23T18:20:00.000Z
1221 ## Source snapshot hash changed
1322 The same source URL has a different snapshot hash. This may reflect policy text, page layout, navigation, or metadata changes; it is not by itself a policy change.
14-Source https://genai.ubc.ca/guidance/teaching-learning-guidelines/guidelines-for-all-uses-of-genai-in-teaching-learning/ snapshot 6bbb5fcbff690d26cad89c3e3f9fc7e41059818f7cfd3f822574310dc7bb1cbd
15-Tracker checked at: 2026-05-23T18:20:00.000Z
23+Source https://genai.ubc.ca/guidance/teaching-learning-guidelines/guidelines-for-all-uses-of-genai-in-teaching-learning/ snapshot 0a10700e5b9ae757ebb2e087e23f3969882265c8e7727c23a77f543c3319f882
24+Tracker checked at: 2026-05-23T18:20:00.000Z

public-release-20260524-001

与 public-release-20260523-002 相比。

政策文本0新提取的0源快照2源文本0
版本差异差异 JSON

大学 of British Columbia public-release-20260524-001 差异

将 public-release-20260523-002 与 public-release-20260524-001 进行比较。

+4-4
11 # University of British Columbia AI policy diff
22 ## Source snapshot hash changed
33 The same source URL has a different snapshot hash. This may reflect policy text, page layout, navigation, or metadata changes; it is not by itself a policy change.
4-Source https://ai.ctlt.ubc.ca/privacy-impact-assessments-for-generativeai-instructional-use-at-ubc/ snapshot d3989125ce8d90036521247d22f7d10ec640a5bd858f3a58c8c844283733d251
5-Tracker checked at: 2026-05-10T14:00:00Z
4+Source https://ai.ctlt.ubc.ca/privacy-impact-assessments-for-generativeai-instructional-use-at-ubc/ snapshot 84b6befc047b89e306d54f512d4afcf4e10dae50d9fe4b682968f25f6fdf71c3
5+Tracker checked at: 2026-05-10T14:00:00Z
66 ## Source snapshot hash changed
77 The same source URL has a different snapshot hash. This may reflect policy text, page layout, navigation, or metadata changes; it is not by itself a policy change.
8-Source https://genai.ubc.ca/guidance/teaching-learning-guidelines/guidelines-for-all-uses-of-genai-in-teaching-learning/ snapshot 0a10700e5b9ae757ebb2e087e23f3969882265c8e7727c23a77f543c3319f882
9-Tracker checked at: 2026-05-10T14:00:00Z
8+Source https://genai.ubc.ca/guidance/teaching-learning-guidelines/guidelines-for-all-uses-of-genai-in-teaching-learning/ snapshot 6bbb5fcbff690d26cad89c3e3f9fc7e41059818f7cfd3f822574310dc7bb1cbd
9+Tracker checked at: 2026-05-10T14:00:00Z

public-release-20260526-003

与 public-release-20260526-001 相比。

政策文本0新提取的6源快照0源文本0
版本差异差异 JSON

大学 of British Columbia public-release-20260526-003 差异

将 public-release-20260526-001 与 public-release-20260526-003 进行比较。

+18-0
11 # University of British Columbia AI policy diff
22 ## Newly extracted tracker claim
33 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
4+ai_tool_treatment: UBC lists generative AI tools by whether they are approved for required instructional use.
5+Evidence (en-US, d3989125ce8d): Privacy Impact Assessments for GenerativeAI Instructional Use at UBC
6+Tracker checked at: 2026-05-23T18:20:00.000Z
47 ## Newly extracted tracker claim
58 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
9+ai_tool_treatment: UBC allows required instructional use of Microsoft Copilot for Organizations with caution when students use UBC credentials and avoid personal information or intellectual property.
10+Evidence (en-US, d3989125ce8d): Yes, with caution: Students should log in with their UBC credentials, be reminded not to enter personal information or intellectual property into the tool.
11+Tracker checked at: 2026-05-23T18:20:00.000Z
612 ## Newly extracted tracker claim
713 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
14+teaching: UBC says instructors, supervisors, and programs should clearly communicate permitted and prohibited GenAI use to students.
15+Evidence (en-US, 0a10700e5b9a): Instructors, supervisors, and programs should clearly communicate to students the permitted and/or prohibited use of GenAI in their academic work.
16+Tracker checked at: 2026-05-23T18:20:00.000Z
817 ## Newly extracted tracker claim
918 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
19+academic_integrity: UBC strongly discourages use of AI-generated-content detectors because of concerns about effectiveness, accuracy, bias, privacy, and intellectual property.
20+Evidence (en-US, 0a10700e5b9a): The use of applications to detect AI-generated content is strongly discouraged at this time, due to concerns about effectiveness, accuracy, bias, privacy, and intellectual property.
21+Tracker checked at: 2026-05-23T18:20:00.000Z
1022 ## Newly extracted tracker claim
1123 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
24+privacy: UBC says a Privacy Impact Assessment is required for university tools and initiatives that handle personal information.
25+Evidence (en-US, 0dd15e2aa73b): Under British Columbia’s Freedom of Information and Protection of Privacy Act, a Privacy Impact Assessment (PIA) is required for university tools and initiatives that handle personal information.
26+Tracker checked at: 2026-05-23T18:20:00.000Z
1227 ## Newly extracted tracker claim
1328 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
29+privacy: UBC conducts Privacy Impact Assessments case by case to mitigate privacy risks associated with information handling.
30+Evidence (en-US, 0dd15e2aa73b): At UBC, PIAs are conducted on a case-by-case basis, with a focus on proactively mitigating privacy risks associated with information handling.
31+Tracker checked at: 2026-05-23T18:20:00.000Z

public-release-20260715-005

与 public-release-20260714-002 相比。

政策文本0新提取的1源快照0源文本0
版本差异差异 JSON

大学 of British Columbia public-release-20260715-005 差异

将 public-release-20260714-002 与 public-release-20260715-005 进行比较。

+5-0
11 # University of British Columbia AI policy diff
22 ## Newly extracted tracker claim
33 This claim was newly extracted or newly promoted in the tracker release. It is not necessarily newly published by the university.
4+ai_tool_treatment: Copilot Chat (Basic) is listed for University of British Columbia in an official university AI tools source. Derived availability: allowed. Derived endorsement type: institutionally licensed or procured.
5+Evidence (en, 5a063209dc9f): UBC IT says Copilot Chat (Basic) is available to eligible UBC students, faculty, and staff through UBC's Microsoft 365 environment and is included as part of UBC's Microsoft 365 licensing for eligible users.
6+Tracker checked at: 2026-07-15T21:04:43.896Z
47 ## Source attribution added
58 An official source attribution was added to the tracker record.
9+Source https://it.ubc.ca/services/artificial-intelligence/microsoft-copilot-ubc snapshot 5a063209dc9f82dbcf2607adfadd57b8f6861d2d3939386baace4bd7e732c7b9
10+Tracker checked at: 2026-07-15T21:04:43.896Z

声明变更

20 声明 条记录

ai_tool_treatment

Copilot Chat (Basic) is listed for University of British Columbia in an official university AI tools source. Derived availability: allowed. Derived endorsement type: institutionally licensed or procured.

审核: 智能体已审核置信度97%证据1语言en

ai_tool_treatment

UBC lists generative AI tools by whether they are approved for required instructional use.

审核: 智能体已审核置信度90%证据1语言en-US

ai_tool_treatment

UBC says students must not be required to sign up for or use ChatGPT 5 with an account.

审核: 智能体已审核置信度90%证据1语言en-US

ai_tool_treatment

UBC allows required instructional use of Microsoft Copilot for Organizations with caution when students use UBC credentials and avoid personal information or intellectual property.

审核: 智能体已审核置信度90%证据1语言en-US

teaching

UBC says instructors, supervisors, and programs should clearly communicate permitted and prohibited GenAI use to students.

审核: 智能体已审核置信度90%证据1语言en-US

academic_integrity

UBC says educators should tell students when and how to acknowledge GenAI use if GenAI tools are allowed in assessed work.

审核: 智能体已审核置信度90%证据1语言en-US

academic_integrity

UBC strongly discourages use of AI-generated-content detectors because of concerns about effectiveness, accuracy, bias, privacy, and intellectual property.

审核: 智能体已审核置信度90%证据1语言en-US

privacy

UBC says instructors should not submit student work or personal information to AI detectors unless the detector has undergone UBC Privacy Impact Assessment review.

审核: 智能体已审核置信度90%证据1语言en-US

privacy

UBC says a Privacy Impact Assessment is required for university tools and initiatives that handle personal information.

审核: 智能体已审核置信度90%证据1语言en-US

privacy

UBC conducts Privacy Impact Assessments case by case to mitigate privacy risks associated with information handling.

审核: 智能体已审核置信度90%证据1语言en-US

academic_integrity

Students may only use GenAI for assessed work (assignments, exams, projects, theses) if expressly permitted by their instructor, supervisor, or program.

审核: 智能体已审核置信度97%证据1语言en

academic_integrity

The use of applications to detect AI-generated content is strongly discouraged at UBC due to concerns about effectiveness, accuracy, bias, privacy, and intellectual property. Turnitin AI detection is not enabled.

审核: 智能体已审核置信度97%证据1语言en

academic_integrity

All uses of GenAI at UBC must uphold academic integrity and adhere to the academic misconduct regulations in the UBC Okanagan and Vancouver calendars.

审核: 智能体已审核置信度96%证据1语言en

privacy

UBC says instructors or teaching assistants cannot require students to use GenAI or any other technology tool that requires sharing personal information unless the tool has undergone a UBC Privacy Impact Assessment review and been approved for use with personal information.

审核: 智能体已审核置信度96%证据1语言en

privacy

Do not enter personal information into any generative AI tool that has not been through UBC's FIPPA compliance assessment (PIA), as to do so may be a breach of privacy.

审核: 智能体已审核置信度96%证据1语言en

teaching

UBC recognizes generative AI as a tool to assist in tasks, not a replacement for human creativity and judgment, and encourages experimentation within ethical and responsible use boundaries.

审核: 智能体已审核置信度95%证据1语言en

teaching

Faculty and staff may use GenAI in teaching and learning so long as this is within the bounds of legal, university, Faculty, or program-level policies and requirements.

审核: 智能体已审核置信度95%证据1语言en

ai_tool_treatment

Microsoft Copilot for Organizations is the approved institutional GenAI chatbot at UBC, available to all faculty, students, and staff with UBC credentials, with PIA interim approval.

审核: 智能体已审核置信度95%证据1语言en

academic_integrity

Graduate students must obtain approval from their supervisor/committee for substantive GenAI use in research and thesis work, and must include a GenAI use statement in their thesis preface.

审核: 智能体已审核置信度95%证据1语言en

teaching

Use of GenAI in teaching and learning should respect Indigenous data sovereignty and community protocols for use and sharing of Indigenous knowledges, intellectual properties, and data.

审核: 智能体已审核置信度94%证据1语言en

源快照

14 source attributions

GenAI - Academic Integrity at UBC

official_guidance Tracker checked at 2026年5月10日 14:00

快照哈希值
e5886b8fbffbbb348fd2ebc43b15fb59f4528065ae05ff958ac9fc96258830a4

Principles for the Use of Generative AI Tools

official_policy_page Tracker checked at 2026年5月10日 14:00

快照哈希值
0e6f376cd2d07ed3ed0fb7aceed5e0ca29bcc3544d2ec9e29e442118aeaf252b

Privacy & Risk - Generative AI

official_guidance Tracker checked at 2026年5月23日 18:20

快照哈希值
0dd15e2aa73bf919a8a8d438ab8cbc3e6608f1f1b89bcad664cd29ec3eddc31c

Privacy & Risk - Generative AI at UBC

official_guidance Tracker checked at 2026年5月10日 14:00

快照哈希值
c02870d6c786d400d622d239e90952bfe84a0df4fcc74ceb96aec926c868c88e

UBC Guidance - Generative AI

official_guidance Tracker checked at 2026年5月10日 14:00

快照哈希值
6850138c83175af75da06d2efac708a4c953c419038a13c25b4239cfe643e86d