Anthropic Launches Claude Fable 5.2 and Mythos 5.2

Anthropic today introduced its latest models, Claude Fable 5.2 and Claude Mythos 5.2, which have improvements in coding, reasoning, and vision. Anthropic says Fable 5.2 and Mythos 5.2 communicate more clearly than the 5.1 versions, with outputs generated up to 30 percent faster. Fable 5.2 uses fewer tokens than Fable 5.1 on challenging tasks when set to medium effort. The company suggests using Fable and Mythos for "the most ambitious, open-ended technical work." Anthropic recommends starting with Opus 5.5 for most coding and knowledge tasks, then switching to a model like Fable or Mythos that can handle more complex requests, or stepping down to a more affordable model like Sonnet or Haiku 5.5. Benchmarks suggest Fable and Mythos 5.2 outperform Opus 5.5 for computer use, knowledge work, cybersecurity, agentic scientific research, agentic coding, multidisciplinary reasoning, and more. Both use the same underlying model, but the public-facing Fable 5.2 model has cybersecurity and biology safeguards to prevent misuse. Compared to Fable 5.1, Fable 5.2 has approximately 55 percent fewer blocks. Mythos does not have the same limitations as Fable, and it is available through Anthropic's Life Sciences and Cyber Verification Programs as well as through Claude Security on Enterprise plans. Fable 5.2 is available today on all platforms. Subscribers on eligible paid plans have extra Fable usage this week, with one to three Fable resets based on subscription length. Fable is included for up to 50 percent of weekly usage limits for Pro plans and standard seats on the Team plan. A fast mode that speeds up token generation by up to 2.5 times is available on Claude Code, the Claude Platform, Claude Models on Google Cloud, and Microsoft Foundry. Popular StoriesAnthropic Launches Claude Duet, a Proactive AI AgentWednesday October 21, 2026 1:52 pm PDT by Juli CloverAnthropic today introduced Claude Duet, its answer to Meta's Muse agent and OpenAI's Dots agent. Like Dots and Muse, it is a proactive agent that "reaches out before you ask." Claude Duet connects to your apps and suggests things that need your attention. It completes tasks and can work in the cloud without local access to a computer. As with Muse and Dots, Duet has a virtual machine with...Claude Gets Personal Finance Feature With Bank Account LinkingThursday November 5, 2026 2:47 pm PST by Juli CloverAnthropic today added Personal Finance to Claude, allowing users to connect their bank and card accounts for analysis. Claude has read-only access to accounts, and there is no option for it to move, manage, or invest money. Anthropic says Claude gives answers in everyday language and can explain unfamiliar financial terms. The feature can track spending across categories, upcoming bills,...Apple Taking New Approach to Developing iOS 28 and macOS 28Apple has made a change to its development process for iOS 28, macOS 28, and corresponding software updates, according to Bloomberg's Mark Gurman. In his Power On newsletter today, he said Apple separates development of each year's new operating systems into three major stages. Typically, he said each stage consists of four weeks of coding followed by a four-week "convergence" period where...