OpenAI releases GPT-5.3-Codex, an AI agent for computer operation
Photo by Jonathan Kemper (unsplash.com/@jupp) on Unsplash
OpenAI released its GPT-5.3-Codex AI agent on February 6, 2026, an upgrade designed to manage professional computer tasks beyond coding. The model launched minutes after rival Anthropic announced its Claude Opus 4.6.
Key Facts
- •Key company: OpenAI
- •Also mentioned: Anthropic
OpenAI released its GPT-5.3-Codex AI agent on February 6, 2026, according to multiple reports on the Mastodon Social ML Timeline. The new model is designed to manage professional computer tasks that extend beyond its initial coding and code review functions. This release occurred minutes after rival Anthropic announced its own Claude Opus 4.6 model, as reported by the same source.
The launch of GPT-5.3-Codex represents a strategic expansion of OpenAI's Codex technology. A report from aihaberleri.org stated the new model emphasizes "intermediate transformation guidance and frequent progress updates" with the goal of reshaping the user experience. A separate post on the Fosstodon AI Timeline characterized the agent as one capable of operating a computer, suggesting a move into technical assistance and automation of complex digital workflows. This development occurs within a highly competitive sector for AI-assisted coding and productivity tools.
In a separate development on February 6, a TechCrunch article reported on a backlash surrounding OpenAI's decision to retire its GPT-4o model. The report, shared on Fosstodon, indicated the controversy demonstrated the perceived dangers of AI companions, though it did not establish a direct link to the GPT-5.3-Codex announcement. Also on February 6, Analytics Vidhya published an article posing the question of whether OpenAI’s new model is worth the hype and another directly comparing the capabilities of Claude Opus 4.6 and OpenAI Codex 5.3.
In an unrelated business development also reported on February 6, OpenAI is planning to sell advertisements on its ChatGPT platform at a significant premium. A post on the Mastodon Social ML Timeline stated the company’s proposed advertising rates are approximately three times the average cost on Meta’s platforms. The same report noted that OpenAI will not provide advertisers with the same level of detailed user data that is available through Google and Meta’s advertising services.
Sources
This article was created using AI technology and reviewed by the SectorHQ editorial team for accuracy and quality.