Anthropic Unveils Claude Opus 4.6: The Industry’s First 1-Million Token Context AI with Advanced Reasoning
Just two months after the release of version 4.5, Anthropic has announced its latest breakthrough: Claude Opus 4.6. This new flagship model is described as a "quantum leap" in sophisticated planning, sustained long-term task execution, and enhanced stability particularly when managing massive codebases. Notably, Opus 4.6 is the first model in the Claude family to officially support a 1-million token context window.
Benchmark Dominance and Coding Mastery
Claude Opus 4.6 has set new industry standards by outperforming competitors across several critical benchmarks:
Terminal-Bench 2.0: Demonstrated superior proficiency in complex coding and system-level tasks.
Humanity’s Last Exam: Scored record highs in advanced reasoning and nuanced problem-solving.
General Knowledge & Finance: Showcased unparalleled accuracy in specialized domains, making it a powerful tool for professional environments.
The Ultimate Productivity Assistant
Anthropic is positioning this version as the go-to solution for automated professional workflows. Key enhancements include:
Deep Research & Financial Analysis: Improved ability to parse and synthesize complex financial reports.
Native Integration: Full support for Microsoft Excel workflows, alongside a new preview for PowerPoint integration, allowing the AI to generate presentations and spreadsheets autonomously.
Self-Debugging: The model can now independently audit and debug its own generated code, significantly reducing developer friction.
Availability and Pricing
Claude Opus 4.6 is available starting today via claude.ai, the Anthropic API, and major cloud providers. In a move that challenges the market, Anthropic is maintaining its existing price point: $5 per 1M input tokens and $25 per 1M output tokens.
Support for 1 million tokens means users can upload an entire book or project's source code for the AI to analyze for bugs or summarize content all at once, without the model losing the middle part of the data—a weakness of older AI models.
The financial accuracy selling point is huge, as AI typically struggles with calculations. Opus 4.6 is trained with verifiable reasoning, enabling spreadsheet calculations to be as accurate as human calculations.
The AI's ability to preview slides directly challenges Microsoft Copilot, as Claude doesn't just help write text, but also structures and sequences the presentation for a more natural feel.
The release of a new version just two months after the previous one reflects the fierce competition in AI in 2026, especially with competitors like GPT-5 or Gemini 2.0. This forces Anthropic to maintain a rapid update pace (Agile Development) to win over programmers and analysts.
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Source: Anthropic

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