Ultrafast in Codex runs up to 8x faster than Astra Standard and 4x faster than Astra Fast, shortening iteration loops for coding AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → work.
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AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
