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Anthropic Releases Claude Opus 5 With Major Reasoning Upgrades

Anthropic officially released Claude Opus 5, delivering step-change improvements in deep reasoning, agentic tasks, and long-horizon problem solving capabilities.

Anthropic released Claude Opus 5 on July 24, 2026, marking a significant upgrade over its predecessor. The new model delivers major improvements in deep reasoning, agentic workflows, and test-time compute capabilities. It maintains a 1 million token context window while keeping pricing consistent with previous Opus tiers.

Step-Change Reasoning Capabilities

Anthropic officially released Claude Opus 5 on July 24, 2026 [[26]]. The new model represents a significant upgrade over Opus 4.8, delivering the largest gains in deep reasoning, agentic workflows, and test-time compute capabilities [[29]]. Early benchmarks indicate strong performance on complex, long-horizon tasks that require sustained logical deduction.

Pricing and Context Specifications

Despite the performance leap, Anthropic has maintained consistent pricing for the Opus tier. Claude Opus 5 costs 5permillioninputtokens∗∗and∗∗5 per million input tokens** and **25 per million output tokens [[30]]. It also retains a massive 1 million token context window, allowing users to process extensive documentation or codebases in a single prompt without degradation in recall or reasoning quality.

The Trajectory of Agentic AI

The release of Opus 5 underscores Anthropic's focus on making AI a proactive, reliable partner in complex workflows. By optimizing for test-time compute and agentic stability, the model is designed to handle multi-step processes with minimal human oversight, pushing the boundary of what autonomous AI systems can achieve in professional environments.