Comprehensive guide to prompt engineering techniques for Claude's
latest models, including Claude Opus 4.6, Claude Sonnet 4.6, and
Claude Haiku 4.5. It covers foundational techniques, output
control, tool use, thinking, and agentic systems.
OpenAI releases GPT-5.1 Instant and GPT-5.1 Thinking, upgrades to the GPT-5 series focusing on improved intelligence, conversational style, and customization options for ChatGPT. Includes new tone presets and the ability to fine-tune characteristics.