AI Launch Profile

OpenAI launches GPT-5.3-Codex for frontier agentic coding work

OpenAI introduced GPT-5.3-Codex, describing it as a more capable agentic coding model for Codex, long-running tasks, and broader professional computer work.

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At a glance

Launch Snapshot

Company: OpenAI
Launch date: February 5, 2026
Launch type: Model Release
Category: AI Agents, AI Coding Tools, AI Developer Tools
Audience: Developers, Product Teams
Pricing: Available through paid ChatGPT/Codex plans and Codex surfaces; API/plan details depend on access tier.
Free plan: No
API: Yes
Open weights/source: No

Launch Context

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Verification & Sources

Evidence state: Recheck due
Source links: 3
Freshness: Needs recheck: checked June 8, 2026
Last updated: June 19, 2026

What this evidence state means

Definition: The claim was previously checked, but its review window expired or a material change may have invalidated it.
Required provenance: The prior evidence and check date are retained, together with the expiry or change signal that triggered recheck.
Owner: Kingy freshness queue owner and assigned editorial reviewer
Freshness rule: This is already outside its freshness rule. It must not be presented as current until reviewed against current evidence.
Disputes and corrections: Use “Suggest a correction” on the record. Kingy editorial reviews the cited evidence, records material corrections, and changes or removes the state when it is not supported.

Key source checks

Official site Demo OpenAI system card

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Creator Coverage Next Steps

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Kingy AI Take

A major agentic coding model release because OpenAI positioned it as moving Codex from code generation toward broader computer work.

Who it is for

Teams using Codex for autonomous coding, debugging, testing, analysis, documentation, and multi-step software workflows.

What feels promising

The model’s value is tied to the Codex app, CLI, IDE, and web surfaces, making it more than a benchmark-only launch.

What feels unproven

Higher capability increases the need for sandboxing, review, evals, and clear permission boundaries.

Source list

Sources

Official site openai.com Demo openai.com OpenAI system card openai.com