Anthropic's newly released AI model, Claude Fable 5 , is receiving a mixed response from early users, with developers and industry leaders highlighting both major improvements in capability and concerns around cost and access.
Launched alongside Mythos 5, the model is designed to handle complex, long-running tasks such as software development, research and design. According to Anthropic, Fable 5 is a safeguarded version of Mythos, intended for broader public use.
Early reactions on X (formerly Twitter) point to a noticeable jump in performance.
Andrej Karpathy, an AI researcher and former OpenAI and Tesla executive, described the release as "a major-version-bump" and said the model performs strongly on benchmarks and in extended problem-solving sessions.
