Anthropic: Claude Opus 4.1

This advanced AI model is built for coding, logic inference, and agent-driven automation. It excels at multi-file refactoring, debugging, and research-heavy tasks with long-context support around 200K tokens. Integrated tooling enables seamless API calls and workflow orchestration, while strong reasoning improves reliability in complex, multi-step problems. It can analyze large conversations and documents, generate backend scripts, and support bilingual and multilingual development. For best results, provide clear prompts with code context, languages, and file counts. Plan infrastructure for long contexts, and verify outputs before production use—especially for technical terminology, code structure, and multi-step logic chains.