OpenAI's Romain Huet confirms that GPT-5.5 will not have a separate Codex model, as the company has unified coding capabilities directly into the main model since GPT-5.4. The new version shows significant improvements in agentic coding, computer use, and general computer-based tasks. This represents a strategic shift toward integrated AI systems rather than specialized coding models.
Background
OpenAI previously maintained separate models like Codex specifically for coding tasks, but has been moving toward unified AI systems. GPT models have increasingly incorporated multimodal capabilities including coding assistance.
- Source
- Simon Willison
- Published
- Apr 25, 2026 at 08:06 PM
- Score
- 6.0 / 10