{"slug": "behavioral-openai-default-value-changed", "title": "[Behavioral] OpenAI: Default value changed", "summary": "OpenAI changed the default model for its ImageGenTool from \"gpt-image-1\" to \"gpt-image-2\" in its published API specification, affecting every call that omits the model field. The change reaches ImageGenTool objects across 14 OpenAI operations, so code relying on the previous default will now route to the newer model without any code change.", "body_md": "## What changed\n\nBehavior shifts for every call that omits the field.\n\nAffects `ImageGenTool` reachable from 14 operations.\n\n\"gpt-image-1\" → \"gpt-image-2\"\n\n## Who is affected\n\nCode that calls OpenAI's ImageGenTool objects, used by 14 OpenAI operations.\n\n## Before and after\n\n| Where | Before | After | \n|---|---|---|\n| ImageGenTool.model | gpt-image-1 | gpt-image-2 | \n\nBased on OpenAI’s published API specification. [How severity is decided](https://driftwatch.et/method).", "url": "https://wpnews.pro/news/behavioral-openai-default-value-changed", "canonical_source": "https://driftwatch.et/changes/openai-2026-10-23-a4e25820", "published_at": "2026-10-23 19:43:38+00:00", "updated_at": "2026-10-23 22:13:18.436325+00:00", "lang": "en", "topics": ["artificial-intelligence", "generative-ai", "ai-products", "ai-tools"], "entities": ["OpenAI", "ImageGenTool", "gpt-image-1", "gpt-image-2"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/behavioral-openai-default-value-changed", "markdown": "https://wpnews.pro/news/behavioral-openai-default-value-changed.md", "text": "https://wpnews.pro/news/behavioral-openai-default-value-changed.txt", "jsonld": "https://wpnews.pro/news/behavioral-openai-default-value-changed.jsonld"}}