Opus 4.6 added adaptive thinking, agent teams in Claude Code, and Excel and PowerPoint integrations for knowledge work. It led Terminal-Bench 2.0 and Humanity's Last Exam — AnthropicAn AI safety company — creators of the Claude family of language models.'s answer to GPTGenerative Pre-trained Transformer — OpenAI's family of large language models from GPT-1 through GPT-5.-5.2 and GeminiGoogle's family of multimodal AI models — successors to PaLM and competitors to GPT and Claude. 3 Pro in the agenticAI systems that plan and execute multi-step tasks autonomously — tools, browsing, and sub-agents. coding arms race.

Opus 4.6 made million-token agenticAI systems that plan and execute multi-step tasks autonomously — tools, browsing, and sub-agents. coding a production AnthropicAn AI safety company — creators of the Claude family of language models. tier.

Parallel agent teams and adaptive thinking pushed multi-hour autonomous work mainstream.