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Shi's AI Notes
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Apr 24, 2026 · Backend Development

How OpenAI’s Responses API WebSocket Revamp Accelerates Agent Workflows by 40%

OpenAI identified API‑overhead as the new bottleneck after faster model inference and introduced a persistent WebSocket connection that caches conversation state, overlaps request phases, and preserves the original API shape, delivering up to a 40% end‑to‑end latency reduction and dramatically higher TPS.

BackendOpenAIPerformance Optimization
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How OpenAI’s Responses API WebSocket Revamp Accelerates Agent Workflows by 40%