Configure Cheap Access to Premium AI

I want practical, step-by-step guidance that lets me start using Anthropic’s newest Claude variants—Fable 5.1, Opus 5.5 and the upcoming Fable 5.5—alongside bleeding-edge GPT builds such as GPT-6 Astra and GPT-6.1 Sol, all for little to no cost... (Budget: ₹150000 - ₹250000 INR, Jobs: AI Automation, AI Chatbot Development, AI Development, AI Integration, AI Model Development, API Development, Java, JavaScript, PHP, Software Architecture)