Codex Developer Update: GPT-5.6 and Parallel Tasks

OpenAI used July 15 to present a new wave of Codex updates aimed at developers. Officially, the company said Codex now has 7M+ weekly active users and has shipped 150+ updates over the past two months, underscoring both rapid iteration and Codex’s move toward becoming a more complete entry point for real development workflows.

Key updates

Across OpenAI’s official posts and a demo by developer relations lead Romain Huet, the headline features were access to GPT-5.6 and Ultra, better parallel task management, a major update to Computer Use, inline editing directly in code and docs, plus PR review, Sites, and mobile usage. @OpenAIDevs also mentioned /goal, but did not provide further detail in the post. Huet’s demo video ended with a brief teaser of an unreleased feature.

Growth and quota information

Beyond the official product posts, multiple reposts and commentary posts said Codex and ChatGPT Work together had reached 8 million monthly active users, and that OpenAI had reset usage quotas again. However, the exact limit policy was described inconsistently. Some reposts said there was still no 5-hour rate limit, while Emmanuel Vivier said GPT-5.6 Sol offered Plus, Pro, and Business users “unlimited use on a rolling 5-hour window,” with weekly and monthly caps still in place.

Community observations

Discussion around the update focused on two themes. First, posters such as @rwang07 said Codex usage clearly picked up after GPT-5.6 launched. Second, content reposted by @steipete said the compaction issue had improved noticeably, with Codex 5.6 Sol less likely during long sessions to lose context, forget the goal, or drift off task. Those observations help explain why this update drew attention beyond a normal feature drop.

2026-07-14 ~ 2026-07-16 · 28 related posts

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