On Tuesday, OpenAI released a new foundation model called GPT-5.5 Instant, which will replace GPT-5.3 Instant as the default ChatGPT model. The company said the model reduces hallucination in ...
The system prompt for OpenAI’s Codex CLI contains a perplexing and repeated warning for the most recent GPT model to “never talk about goblins, gremlins, raccoons, trolls, ogres, pigeons, or other ...
New prompt engineering guides and GPT‑5.5 benchmark results were released together, offering developers fresh tools and data to refine AI use. The guides emphasize structured, specific prompts to ...
OpenAI has released a prompting guide for GPT-5.5, advising concise, outcome-focused instructions to make the most of its capabilities. The new model is designed to handle loosely defined requests, ...
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