ChatGPT GPT 5.1 update, highlighting the new features and improvements Welcome to NFSTUBE , a daily lifestyle companion with more than 200+ Topics Live. Loved & Trusted by our readers Worldwide . A digital destination for latest in News, Technology, Entertainment, Gaming, Automobiles, Fitness, Education, Motivation, Youtube - helping you grow, learn and thrive every day ChatGPT 5.1 Update- Quick Highlights OpenAI rolls out GPT 5.1 with two modes: Instant and Thinking . Repl