ChatGPT/Q/How can I measure usage in ChatGPT Work and in ChatGPT Codex? I'd like to know how much usage each thread has consumed

• How can I measure usage in ChatGPT/Work and in Codex? I'd like to know how much usage each thread has consumed.

  • AI Answer

    • Answer/Official from Reviewing Work and Codex usage and using Personal Analytics in ChatGPT Desktop:
      • Per-thread usage: In ChatGPT Desktop, open a Work or Codex chat and select the usage indicator in the chat header. Where the feature is available, it shows the chat's lifetime credits, an estimated cost, and the model, reasoning effort, and speed associated with that usage. The total generally refreshes about once per minute.
      • Find the biggest threads: Open Settings → Usage & billing. The Top consuming chats list ranks locally available Work and Codex chats active in the last 30 days by lifetime credit usage. The 30-day period controls which chats appear; the displayed total covers the available lifetime history of each listed chat.
      • Overall allowance: Settings shows the monthly Work-and-Codex allowance, credits used, remaining allowance, and reset information where the workspace exposes those details. Work and Codex generally draw from the same allowance rather than separate pools. See Using Codex with your ChatGPT plan.
      • Tokens and broader analysis: Usage history can separate uncached input, cached input, and output tokens. If the workspace has enabled Personal Analytics, mention @personal-analytics in Work or Codex and ask for a usage summary or a breakdown by model, reasoning effort, speed, tokens, credits, or date range.
      • Important limit: Per-chat usage is an estimate for the main conversation, not a complete billing ledger. Sub-agents, separate tasks, some tools such as image generation, background activity, and recent or unavailable records may be omitted. For complete spend information, use workspace billing and usage records.
      • Eligibility: The detailed Usage & billing and per-chat views are documented for eligible Enterprise/Edu workspaces with credit-based billing, and availability depends on the account and workspace settings. If the usage indicator or per-chat list is absent, the account may only expose aggregate limits or reset information. In Codex CLI, /status reports the active allowance and reset information, but it is not a per-thread lifetime-usage report.