{"schema":"postcutoff/event@1","as_of":"2026-11-09T21:13:00+01:00","url":"https://postcutoff.com/e/2026-11-04-bytedance-restricts-staff-claude-codex/","md":"https://postcutoff.com/e/2026-11-04-bytedance-restricts-staff-claude-codex/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"human editor","policy":"https://postcutoff.com/about/"},"license":null,"id":"2026-11-04-bytedance-restricts-staff-claude-codex","date":"2026-11-04","date_precision":"day","short_title":"ByteDance bars staff from using personal Claude and Codex accounts on internal code and documents","deck":null,"takeaway":null,"category":"business","category_label":"Business","importance":2,"confidence":"medium","status":{"key":"partly","labels":["Partly confirmed"]},"sources":[{"n":1,"title":"TechNode: ByteDance reportedly tightens access to Claude and Codex","url":"https://technode.com/2026/11/04/bytedance-reportedly-tightens-access-to-claude-and-codex-even-for-employees-paying-out-of-pocket/","type":"press","group":"press","domain":"technode.com"},{"n":2,"title":"ITHome (original report, Chinese)","url":"https://www.ithome.com/1/021/917.htm","type":"press","group":"press","domain":"ithome.com"}],"official":0,"filed":"2026-11-04","updated":"2026-11-04","orgs":["ByteDance","Anthropic","OpenAI"],"title":"ByteDance bars staff from using personal Claude and Codex accounts on internal code and documents","summary":"ByteDance has since early November 2026 barred employees from using personal Claude, Codex and similar accounts on internal resources, even when paying themselves, covering all L4 code repositories and Feishu documents (ITHome via TechNode, Nov 4).","key_facts":["Some Seed team uses reportedly exempt","VP of technology Hong Dingkun cited data security and denied pushing staff to ByteDance's own tools","Rolled out in phases; thousands of technical staff affected"],"key_numbers":[],"tags":["china","coding-agents","data-security","enterprise"],"science":null,"body_md":"## What happened\n\nSame week: Goldman Sachs restricted some AI tools for bankers, and Revolut moved coding to self-hosted GLM.","disputed":[],"related":[{"id":"2026-11-02-goldman-restricts-bankers-ai-tools","url":"https://postcutoff.com/e/2026-11-02-goldman-restricts-bankers-ai-tools/","date":"2026-11-02","date_precision":"day","short_title":"Bloomberg: Goldman Sachs restricts traders and bankers from using some AI tools","deck":null,"takeaway":"Bloomberg reported on Nov 2, 2026 that Goldman Sachs is restricting traders and bankers from using some AI tools.","category":"business","category_label":"Business","importance":1,"confidence":"medium","status":{"key":"partly","labels":["Partly confirmed"]},"sources":1,"official":0,"filed":"2026-11-04","updated":"2026-11-04","orgs":["Goldman Sachs"]}],"people":[],"posts":[],"videos":[],"models":[],"changes":[{"date":"2026-11-04","type":"filed","text":"Created"}],"provenance":{"agents":[{"model":"Claude Opus 5.5","maker":"Anthropic","tool":"Claude Code"}],"filed":"2026-11-04","run":null,"sources_read":null,"updated":"2026-11-04","human_review":null,"version":{"date":"2026-11-04"}},"gaps":[{"model_id":"gpt-6-astra","name":"GPT-6 Astra","cutoff":"2026-04","days_after":188,"in_training_data":false},{"model_id":"claude-opus-5-5","name":"Claude Opus 5.5","cutoff":"2026-06","days_after":127,"in_training_data":false},{"model_id":"gemini-4-argon","name":"Gemini 4 Argon","cutoff":"2026-03","days_after":218,"in_training_data":false},{"model_id":"grok-4-7","name":"Grok 4.7","cutoff":"2026-05","days_after":157,"in_training_data":false}],"short_url":null}