# OpenAI — Speeding up agentic workflows with WebSockets in the Responses API

- Company: OpenAI (openai.com)
- Announced: 2026-04-22T10:00:00+00:00
- Category: capability-change
- Subject: GPT / ChatGPT / API
- Models affected: Codex
- Source: https://openai.com/index/speeding-up-agentic-workflows-with-websockets
- Record: https://forck.live/items/174-speeding-up-agentic-workflows-with-websockets-in-the-responses-api

WebSockets and connection-scoped caching in the Responses API reduce API overhead and improve model latency for agentic workflows.

## Evidence

Verbatim from https://openai.com/index/speeding-up-agentic-workflows-with-websockets:

> A deep dive into the Codex agent loop, showing how WebSockets and connection-scoped caching reduced API overhead and improved model latency.

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