FrontierThe story, in brief
OpenAI kills its dedicated coding model Codex again, folding it into GPT-5.5
OpenAI retires Codex again. GPT-5.5 now handles coding natively—with lower token costs and stronger agents.
The KeyNews take
Why it matters
OpenAI is consolidating its model portfolio, betting that a single unified model can outperform specialized coding variants. This signals a strategic shift toward general-purpose foundation models over task-specific fine-tunes—a pattern that could reshape how enterprises approach model selection.
The key facts
4 to knowCodex (dedicated coding model) retired and folded into GPT-5.5
GPT-5.5 promises stronger agentic coding capabilities
Token usage reduction claimed for coding tasks
Consolidation of specialized model into general foundation model
Go to the source
The Decoderthe-decoder.com
Publisher excerpt: OpenAI has once again retired its dedicated Codex coding model, folding its capabilities directly into the main model. GPT-5.5 promises stronger agentic coding and lower token usage, OpenAI says.