Anthropic Discloses Stronger Internal Model 2, Rules Out Near-Term Release
Anthropic has disclosed an internal artificial intelligence system called Model 2 for the first time in its latest risk report, saying it is more capable than Fable 5, its current external model. The disclosure matters because it points to a widening gap between frontier systems used inside leading AI companies and those available to customers, sharpening questions about safety testing, transparency and release controls.
As of Aug. 15, 2026, Anthropic said Model 2 was already widely used for software coding and agent-based tasks. The company has no plan to release it publicly because the model has not completed the full set of pre-deployment evaluations required for an external launch. Anthropic also raised its misalignment risk rating, citing uncertainty over the system’s capabilities and behavior.
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The history behind this eventAnthropic Demonstrates Claude-Based Threat Modeling and Vulnerability Remediation
Generative AI is rapidly entering software development workflows, but it also exposes companies to risks from model errors, sensitive-data leaks and the amplification of insecure code. AI model developer Anthropic used Claude to demonstrate how threat modeling and vulnerability remediation can be incorporated into the development lifecycle, helping security and engineering teams establish human review, testing and remediation processes.
Cybersecurity information released on June 18 showed that Anthropic had published a security best-practices guide and an open-source reference implementation explaining how Claude can be used to build threat models, review source code for vulnerabilities and recommend fixes. The materials disclosed no financial amounts. The National Communications Commission also issued guidelines for the use of AI in news production and broadcasting, requiring AI use to be disclosed throughout the process and content to undergo human verification.
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