{"slug": "openai-models-sharply-improve-legacy-code-migration-capabilities", "title": "OpenAI Models Sharply Improve Legacy Code Migration Capabilities", "summary": "OpenAI's GPT-6.1 Sol reached 86.6% accuracy on legacy code migration, up from 5.4% for GPT-5.6 Sol, while costing 39% less, according to results measured on the MultiLangBench benchmark, which tasks models with building a working database engine from scratch in 20 languages. The jump matters because legacy code migration is a costly, labor-intensive task for enterprises running older systems.", "body_md": "OpenAI's latest models have made a groundbreaking leap in legacy code migration, achieving an impressive 86.6% accuracy with GPT-6.1 Sol, a significant jump from GPT-5.6 Sol's 5.4%, all while costing 39% less. This progress was measured using the innovative MultiLangBench benchmark, which pushes models to build a working database engine from scratch in 20 languages.", "url": "https://wpnews.pro/news/openai-models-sharply-improve-legacy-code-migration-capabilities", "canonical_source": "https://osintsights.com/openai-models-sharply-improve-legacy-code-migration-capabilities", "published_at": "2026-10-20 18:25:55+00:00", "updated_at": "2026-10-20 18:46:35.623720+00:00", "lang": "en", "topics": ["artificial-intelligence", "large-language-models", "ai-research", "developer-tools"], "entities": ["OpenAI", "GPT-6.1 Sol", "GPT-5.6 Sol", "MultiLangBench"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/openai-models-sharply-improve-legacy-code-migration-capabilities", "markdown": "https://wpnews.pro/news/openai-models-sharply-improve-legacy-code-migration-capabilities.md", "text": "https://wpnews.pro/news/openai-models-sharply-improve-legacy-code-migration-capabilities.txt", "jsonld": "https://wpnews.pro/news/openai-models-sharply-improve-legacy-code-migration-capabilities.jsonld"}}