OpenAI: GPT-4.1

This model is designed for complex software and long-context tasks. It follows instructions precisely, generates and refactors code, and works across very large inputs—up to one million tokens—making it ideal for analyzing big codebases and lengthy enterprise documents. It supports tool use and clear function invocation patterns, performing best when prompts are explicit and scoped. For software agents, it handles task routing and integrations reliably. While it can process mixed content, text-first workflows are the safest. Performance can degrade with extremely long inputs, so structured prompts and chunking are recommended. Use caution for ultra-specialized domains that require deep expert validation.