Codex Context Window Reduced to 272k
AmazingTurtle · hn · 2026-07-19
OpenAI recently reduced the Codex model's context size from 372k to 272k via a PR.
This change directly impacts Codex's available workspace and the cost/latency trade-off for long-context tasks, marking a substantial update for coding agent workflows.
More from coding & agent
- 'Let an agent run wild on vague goals and it makes your code worse 9 out of 10 times' — eptwts · 2026-10-27
- LangChain to demo the in-house design agent its team uses daily, this Wednesday — LangChain · 2026-10-27
- Biotech Agent Series Day 8: A Notebook Review Agent to Auto-Audit Lab Records — nlarusstone · 2026-10-27
- Photon Launches Agent-to-Agent Messaging in iMessage for Real AI Collaboration — alvelda · 2026-10-27
- Fake-paper meme shows an agent workflow for reverse engineering trading systems into a one-person quant fund — PtrPomorski · 2026-10-27
- Codex clones Linear's core from a one-page spec in 3 minutes 28 seconds — aakashgupta · 2026-10-27