OpenAI’s GPT-5.3-Codex drops as Anthropic upgrades Claude — AI coding wars heat up ahead of Super Bowl ads
Published: (February 5, 2026 at 01:00 PM EST)
1 min read
Source: VentureBeat
Source: VentureBeat
OpenAI releases GPT-5.3-Codex
OpenAI on Wednesday released GPT-5.3-Codex, which the company calls its most capable coding agent to date, in an announcement timed to land at the exact same moment Anthropic unveiled its own flagship model upgrade, Claude Opus 4.6. The synchronized launches mark the opening salvo in what industry o…