OpenAI GPT-5.5 Instant/Pro/Codex rollout
Key Questions
What new features are included in the GPT-5.5 rollout?
GPT-5.5 Instant is the default model with added memory, Gmail integration, and Codex capabilities. It also introduces Realtime-2, Images 2.0, and six job-specific Codex plug-ins plus a Sites feature.
How does Codex improve productivity according to the case study?
The Codex case study reports a productivity gain from 180 hours to 15 hours on tasks. It has reached 5 million weekly active users, with 20% being knowledge workers growing three times faster than developers.
What does the MIT study say about AI coding tools?
The MIT study claims AI coding tools increase code volume by 300% but only boost output by 30%, challenging productivity claims. Hacker News discussions echo these findings on limited real gains.
What updates were made to Codex rate limits?
Codex now allows users to save rate limit resets for later use, a small but practical improvement noted in recent announcements.
How is Codex adoption trending in specific regions?
Codex adoption in India has increased 27 times. The tool is expanding beyond coding into areas like farms, iOS apps, and Figma.
GPT-5.5 Instant default + memory/Gmail/Codex; Realtime-2; Images 2.0; Codex case study shows 180h→15h productivity gain. GPT-5.5 crowned best coding model. GPT-Rosalind hidden biology model with dual-use concerns. OpenAI launches six job-specific Codex plug-ins and Sites feature; 5M weekly active users, 20% knowledge workers growing 3x faster than devs. Codex adoption in India up 27x. Codex expanding beyond coding (farms, iOS apps, Figma). OpenAI plans to turn ChatGPT into 'super app' before going public. MIT study claims AI coding tools boost code volume 300% but output only 30%, challenging productivity narrative. FrontierCode benchmark emerges, measuring mergeability over test passing. New economic perspective: adoption friction is organizational, not model quality. Hacker News discussion echoes MIT study. OpenAI released June 2026 report on malicious uses of AI. Direct comparison shows DeepSeek V4 competitive. New: Codex now lets you save rate limit resets for later use. AI price war intensifies, piling pressure on OpenAI and Anthropic.