{"data":{"id":"cf857b83-1969-4510-b7ef-39d036e40b4b","title":"OpenAI says GPT-6.1 Sol is dramatically better at migrating legacy code","summary":"OpenAI says its newer models, including GPT-6.1 Sol, are much better at writing and migrating code in legacy languages such as COBOL, Fortran and Visual Basic. On its MultiLangBench, GPT-6 Astra averaged an 87.4% pass rate, up from 26.8% for GPT-5.6 Sol, and GPT-6.1 Sol reached 86.6% accuracy on COBOL-to-modern-language migration at low reasoning effort. The source adds that production migrations would still need expert review and testing.","solution":"N/A -- no mitigation discussed in source.","labels":["industry","research"],"sourceUrl":"https://www.bleepingcomputer.com/news/artificial-intelligence/openai-says-gpt-61-sol-is-dramatically-better-at-migrating-legacy-code/","publishedAt":"2026-10-20T18:11:03.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":[],"issueType":"news","affectedPackages":null,"affectedPackageNames":null,"affectedPackageRefs":null,"affectedVendors":["OpenAI"],"affectedVendorsRaw":["GPT-6.1 Sol","GPT-6 Astra","GPT-5.6 Sol","MultiLangBench"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":null,"headlinePromptVersion":null,"cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"epssCheckedAt":null,"kevDateAdded":null,"advisoryAliases":null,"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":null,"disclosureDate":"2026-10-20T18:11:03.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"moderate","impactType":null,"aiComponentTargeted":null,"llmSpecific":true,"classifierConfidence":0.85,"researchCategory":null,"atlasIds":null}}