OpenAI has rolled out a full-screen Deep Research viewer for ChatGPT that lets users scroll through AI-generated reports in a separate window, with a left-hand table of contents and a right-hand sources list for easy navigation.

The viewer supports real-time progress tracking, mid-report source additions, and export options in Markdown, Word, or PDF, making reports portable.

Users can jump to specific report sections, adjust the research scope, and add new sources during generation to tailor results on the fly.

Sponsored posts promote tools and services and encourage signups or engagement alongside the updates.

The release is framed as a major advance in AI-assisted coding, with ongoing optimizations and broader API availability expected to expand developer utility.

Administrators enabling Copilot Enterprise or Copilot Business must switch on the GPT-5.3-Codex policy in Copilot settings.

The development fits a broader enterprise strategy to make ChatGPT indispensable in professional workflows, supporting higher-tier pricing like Pro at around $200/month.

OpenAI extended free Codex access for Free and Go users due to rising demand, though lower-tier usage limits may tighten.

The aim is to compete with Google, Perplexity, and Anthropic by boosting output usability and enterprise workflow integration, not solely model intelligence.

GPT-5.3-Codex delivers about a 25% speed boost on coding tasks compared with GPT-5.2-Codex, speeding up development, debugging, and real-time feedback.

Access is limited to Copilot Pro, Pro+, Business, or Enterprise plans, with a gradual rollout."