Anthropic Launches Advanced AI Models, Cuts Pricing Up To 45%

Anthropic has launched its most advanced AI models yet, Claude Fable 5.1 and Claude Mythos 5.1, designed for coding and knowledge work. The two models share the same underlying architecture but differ in their safety safeguards. Fable 5.1 is available to all customers, while Mythos 5.1 is restricted to trusted access programs for cybersecurity and life sciences work.

The new models address customer concerns around cost and privacy. Fable 5.1 will cost roughly 25% less than its predecessor for typical workloads and up to 45% less for heavily agentic tasks. This price reduction is largely due to a 75% cut in the price of cache reads, which now cost $0.25 per million tokens. The base pricing remains unchanged at $10 per million input tokens and $50 per million output tokens.

Anthropic is also introducing Enterprise Frontier Safeguards (EFS), a system that stores customer data on infrastructure controlled by the customer, rather than on Anthropic's servers. This system will begin rolling out this fall across Claude Code, Claude Enterprise, and major cloud platforms, including AWS, Google Cloud, and Microsoft Azure.

The company has also highlighted the scientific applications of the new models. Claude Mythos 5.1 has been used to design high-affinity protein binders with a hit rate of nearly 50% across 12 targets, significantly higher than the typical rate in the field. Additionally, Claude Fable 5.1 was used to build a new high-resolution elevation map covering a third of Venus's surface, based on three-decade-old NASA Magellan radar data.

In terms of safety, Anthropic has reported that Mythos 5.1 shows stronger cybersecurity capabilities than any previous model, but still falls within its lowest risk tier. The company has also improved biology-related safeguards, which now trigger 85% fewer false positives on benign medical queries compared to the original safeguards.

The availability of the new models varies. Claude Fable 5.1 is available immediately on all platforms, including via the Claude API. Mythos 5.1 access remains limited to vetted organizations through Anthropic's Cyber Verification Program and Life Sciences Verification Program.

The launch of these advanced AI models and the reduction in pricing are significant developments in the field of artificial intelligence. As AI continues to evolve and improve, it is likely to have a major impact on various industries, including coding, knowledge work, and scientific research.

The introduction of EFS is also a significant step towards addressing customer concerns around data privacy and security. By storing customer data on infrastructure controlled by the customer, Anthropic is providing an additional layer of protection and control.

Overall, the launch of Claude Fable 5.1 and Claude Mythos 5.1 is a major milestone for Anthropic and the AI industry as a whole. As these models continue to evolve and improve, they are likely to have a significant impact on various fields and industries.

In conclusion, the launch of these advanced AI models and the reduction in pricing are significant developments that are likely to have a major impact on the field of artificial intelligence and various industries. The introduction of EFS is also a significant step towards addressing customer concerns around data privacy and security.

The future of AI is likely to be shaped by developments such as these, and it will be interesting to see how these models continue to evolve and improve in the coming months and years. As AI continues to improve and become more advanced, it is likely to have a major impact on various industries and fields, and it will be important to continue to monitor and evaluate these developments.

The significance of these developments cannot be overstated, and it is likely that they will have a major impact on the future of AI and various industries. As such, it is important to continue to follow and evaluate these developments, and to consider the potential implications and consequences of these advancements.