Claude Opus 5 is here, and Anthropic says it can rival Fable 5 in some tasks
Anthropic introduced Claude Opus 5, a new AI model aimed at coding, research, and business tasks, claiming a significant performance improvement over its predecessor while maintaining the same API price. The model reportedly approaches Claude Fable 5’s results on specific coding and computer-use benchmarks, achieving comparable scores at roughly half the cost per task. Opus 5 is now the default model for Claude Max subscribers and the top option for Claude Pro users, and it is accessible via Claude’s apps and API.
- ▪Claude Opus 5 delivers a major performance jump over Claude Opus 4.8 with unchanged pricing.
- ▪On the CursorBench 3.2 coding benchmark, Opus 5 scored within 0.5% of Fable 5’s best result while costing half as much per task.
- ▪Opus 5 outperformed Fable 5 on the OSWorld 2.0 benchmark at just over a third of the cost.
- ▪The model is the default for Claude Max subscribers and the strongest option included with Claude Pro.
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Anthropic has launched Claude Opus 5, its latest frontier AI model for coding, research, business work, and other complex tasks. The company says it delivers a major performance jump over Claude Opus 4.8 while keeping the same API price. Anthropic also claims it comes close to Claude Fable 5 on some coding and computer-use tests while costing far less per task. Opus 5 is available across Claude’s apps and API. It is now the default model for Claude Max subscribers and the strongest option included with Claude Pro. How close is Claude Opus 5 to Fable 5? On CursorBench 3.2, which tests coding agents on real software development tasks, Opus 5 finished within 0.5% of Fable 5’s best score at maximum effort. Anthropic says it reached that result at half the cost per task.
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