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Achieved — as of Nov 08, 2026, OpenAI Codex has publicly documented evidence for this task under the definition below. This is an evidence publication date, not a claim of a first-ever breakthrough.
Last reviewed Nov 08, 2026 · Evidence published May 16, 2025
Historical availability: Historically demonstrated; check product availability separately. A past demonstration does not guarantee the tool is available or still works today.
01 / THE SHORT ANSWER
“Evidence published” is the publication date of the public source, never a first-ever achievement date. “As of” is the last manual review of this record.
02 / THE TASK
Can implement features and fixes in sandboxes; human review recommended.
Can implement features and fixes in sandboxes; human review recommended.
03 / STATUS
Public evidence documents OpenAI Codex performing this task under the definition above. Evidence was published May 16, 2025. Date meaning: Public source publication date (not necessarily first-ever achievement).
A documented demonstration is not a claim that this tool was first, nor that the result is reliable in every situation.
Not documented in this research snapshot.
04 / EVIDENCE
For Not Yet entries, a source may describe a limitation or an evaluation rather than a breakthrough. Links are editorial references, not endorsements.