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Explore OpenAI's GPT-4.1 prompting guide through this comprehensive 46-minute video tutorial that breaks down the major differences between GPT-4.1 and its predecessors and how these changes impact prompting strategies. Learn about agentic workflows and AI agents, discover optimal context size considerations, and master prompt structuring techniques with visual breakdowns using Excalidraw. Understand system prompt reminders, tool calls and descriptions, and planning methodologies including chain of thought reasoning. Examine how to combine instruction following with reasoning capabilities, optimize chain of thought prompts, and build effective prompts while addressing common errors. Study the recommended output structure for prompts, proper use of XML tags as delimiters, and tool naming conventions for improved accuracy. Gain practical insights for optimizing prompts whether currently using GPT-4.1 or planning to upgrade, with detailed coverage of prompt structure best practices and final optimization tips.
