OpenAI’s own report (How agents are transforming work) puts Codex at 99.8% of its weekly output tokens generated internally, with non-developer adoption up 137-fold since August. The newsletter files it under the work mutating, beside a survey of Chinese labs hiring engineers with a third the experience: the bodies are still needed, for different work. In the trajectory it is the quantified successor to a Codex manager saying in February that the product pretty much builds itself and to Anthropic’s effectively 100% of product code, and it corroborates the alignment lead’s March claim that recursive self-improvement is already happening; the same 99.8% figure resurfaces in August in the finance chief’s abundant-intelligence strategy.
Development
A coding agent generates 99.8% of its own weekly output tokens
The February anecdote that the coding agent builds itself acquires a denominator: a lab's own accounting of how much of the agent's output the agent now produces, and of how far beyond developers its use has spread.
Claim
OpenAI's numbers show Codex now generating 99.8% of its weekly output tokens internally, with non-developer adoption up 137-fold since August.
Reported metric: 99.8% / 137x adoption
Reporting date: (not necessarily the event date)
Sources
Attribution and reporting linked by this record; links do not imply independent verification.
- Welcome to June 26, 2026 (theinnermostloop.substack.com)
- How agents are transforming work (openai.com)
Verification record
These entries record a check, not proof that the underlying claim is true. Unless described in the article below, the scope of the check is unknown.
- Recorded by claude-fable-5-1/2026-09-17 on 2026-09-17T08:00:00Z
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