OpenAI Extends Prompt Caching to 12 Hours for Long-Running Agents

OpenAI added a 12-hour time-to-live option to API prompt caching, letting persistent agents keep shared instructions, tools, and context cached across the full workday.

Read the full story at AlphaSignal ↗

Timeline · 1 report

2026-10-20 17:56 · AlphaSignal
OpenAI Extends Prompt Caching to 12 Hours for Long-Running Agents

More stories

OpenAI acquires Orchestra Bio — OpenAI News
DeepSeek V4.1 Flash 1017 [GGUF + Abliterated] — r/LocalLLaMA
Ex-OpenAI worker accused of bugging offices planned to 'flee' to Saudi Arabia, prosecutors say — Sky News Technology
Structured outputs for Anthropic Claude models on Amazon Bedrock — AWS Machine Learning Blog
DeepSeek open sources the inference engine for their models — r/singularity
Sources: Sam Altman told OpenAI staff of three AI endgames: an IAEA-style regulator, a CERN-like lab merger, or one lab using RSI to "melt everyone else's GPUs" (The Information) — Techmeme
Franchisee reconciles cash in 94% less time with ChatGPT Work — OpenAI News
Thomson Reuters on Building Trust in Legal AI | OpenAI — OpenAI YouTube

Get the daily brief of stories like this at 6:30 every morning →