← ChatGPT & Codex changelog
ChatGPT — March 3, 2026
v2026-03-03-42dee9f9 includes 2 changes. GPT-5.3 Instant Update
Source: official ChatGPT & Codex release notes. Summaries are written from the official notes; see how we work.
Changed
- GPT-5.3 Instant Update
- GPT‑5.3 Instant delivers more accurate answers, richer and better-contextualized results when searching the web, and reduces unnecessary dead ends, caveats, and overly declarative phrasing that can interrupt the flow of conversation. This update focuses on the parts of the ChatGPT experience people feel every day: tone, relevance, and conversational flow. These are nuanced problems that don’t always show up in benchmarks, but shape whether ChatGPT feels helpful or frustrating. GPT‑5.3 Instant directly reflects user feedback in these areas.
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