Claude Fable 5.1 and Mythos 5.1 arrive with better coding and cost cuts for developers
Anthropic launched Claude Fable 5.1 and Mythos 5.1, offering stronger coding and research performance alongside a 75% cut to cache read pricing for developers.
Anthropic has released two enhanced versions of its AI models, Claude Fable 5.1 and Claude Mythos 5.1, designed to improve coding efficiency, handle complex tasks, and reduce costs for developers. The company is offering Claude Fable 5.1, aimed at general use and software development, at a 75% discounted cache read price, making it more affordable for developers to run repeated workloads.
This model excels at identifying root causes and maintaining context during extended coding sessions, ensuring reliable and coherent code output. For trusted organizations involved in cybersecurity and life sciences, Anthropic unveiled Claude Mythos 5.1, which operates with fewer restrictions to enable advanced cybersecurity testing and scientific research.
Unlike consumer models, Mythos benefits from stricter cybersecurity safeguards, reducing false interventions by approximately 60%. Both models are accessible through Claude API, Amazon Bedrock, and Google Cloud Vertex AI. Despite Fable 5.1's standard input and output pricing remaining unchanged at $10 and $50 per million tokens, respectively, the significant cache read price reduction makes it a cost-effective option for developers.
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