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Anthropic's release of Claude Opus 5 marks a significant shift in agentic capabilities for coding and computer use, achieving frontier-level performance on new benchmarks while maintaining stable pricing structures. The update introduces mandatory thinking modes by default and enforces stricter API constraints that require developers to adjust their prompting strategies immediately. Additionally, the model demonstrates improved safety filtering compared to its Fable counterpart, reducing false refusals during complex task execution.

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Meet the New Claude Opus 5: Frontier-Class Agentic Coding and Computer Use at Unchanged Opus Pricing

MarkTechPostJuly 24, 20266 min read

Today, Anthropic released Claude Opus 5. It replaces Claude Opus 4.8 as the Opus-tier flagship. Pricing is unchanged at $5 per million input tokens and $25 per million output tokens. The Anthropic team positions Opus 5 as approaching the intelligence of Claude Fable 5 at half the price. It is now the default model on […] The post Meet the New Claude Opus 5: Frontier-Class Agentic Coding and Computer Use at Unchanged Opus Pricing appeared first on MarkTechPost.

Today, Anthropic released Claude Opus 5. It replaces Claude Opus 4.8 as the Opus-tier flagship. Pricing is unchanged at $5 per million input tokens and $25 per million output tokens. The Anthropic team positions Opus 5 as approaching the intelligence of Claude Fable 5 at half the price. It is now the default model on Claude Max and the strongest model on Claude Pro. Thinking is on by default. On Opus 4.8, requests ran without thinking unless you set thinking: {"type": "adaptive"}. On Opus 5 the same request thinks, and the effort parameter controls depth. Because max_tokens caps thinking plus…

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