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Anthropic Slashes AI Costs, Boosts Performance
24 Jul
Summary
- New Claude Opus 5 model offers performance near top tier at half cost.
- Opus 5 excels in software engineering, problem-solving, and scientific research.
- The AI model is now the default for Claude Max and Pro services.

Anthropic PBC has introduced Claude Opus 5, a new artificial intelligence model aimed at reducing costs for workplace tasks. This launch comes as competition intensifies and customers become more price-sensitive.
The new model reportedly matches the performance of Anthropic's most advanced AI, Fable 5, in many areas but is available at a 50% lower cost. This makes Opus 5 a potentially default choice for routine office operations.
Opus 5 demonstrates strong capabilities in software engineering, scoring exceptionally well on benchmarks like Frontier-Bench. It also shows marked improvements in problem-solving and scientific research, including organic chemistry and protein-related tasks.
The model is now the default for Claude Max and Claude Pro. Anthropic also offers a 'Fast mode' for increased speed at a higher price. Safety testing indicated Opus 5 has low misaligned behavior, though it lags behind other models in specific advanced research areas.