Topic

Fable

7 written stories · 11 tracked

Tech3 outletsover 15h

Anthropic says Opus 5.5 matches Fable 5.1 "on most tasks" while costing about 40% less to run than Opus 5; Opus 5.5 costs $4/1M input and $20/1M output tokens (Matthias Bastian/The Decoder)

Anthropic released Claude Opus 5.5, which matches Claude Fable 5.1 on most tasks while cutting operating costs by about 40%. The new model costs $4 per million input tokens and $20 per million output tokens and includes stricter safeguards against risky behavior.

The Verge·TechCrunch·TechMeme

Tech3 outletsover 19h

Muse Spark 1.3 with max reasoning, in limited preview for partners, scores 62 on the Artificial Analysis Intelligence Index, behind only Fable 5.1 and Opus 5 (@artificialanlys)

Meta released Muse Spark 1.3 for its Muse Code platform and Meta Model API, saying the update boosts coding efficiency and agentic performance while keeping the price unchanged from the prior version. The model adds a max-reasoning variant that is in limited preview for Meta partners, scoring 62 on the Artificial Analysis Intelligence Index, with the top “max” configuration still under safety testing and not yet broadly available.

TechMeme·Hacker News·VentureBeat

Tech6 outlets

Anthropic says Fable 5.1 will cost an estimated 25% less than Fable 5 for typical workloads and up to 45% less for highly agentic work (Zac Hall/9to5Mac)

Anthropic has launched Claude Fable 5.1, which is generally available, alongside Claude Mythos 5.1 for trusted partners with added cybersecurity and life-sciences safeguards. Fable 5.1 is priced roughly 25% lower for typical workloads and up to 45% lower for highly agentic tasks, while cache-read costs are reduced by 75%. The update is touted to raise standards for coding, knowledge work and long-running problem-solving, and to address root causes of software issues.

Hacker News·TechMeme·VentureBeat·TechCrunch·The Next Web+1

Tech4 outlets

Claude Opus 5 matches Fable on coding at half the price, and Anthropic says it is the most aligned model it has ever shipped

Anthropic has released Claude Opus 5, positioning it as a model that comes close to the capabilities of its top-performing Fable 5 system, particularly in coding tasks, while costing roughly half as much. The company says Opus 5 is the most aligned model it has ever shipped and will serve as the default model on Claude Max.

The Verge·Engadget·TechMeme·The Next Web

Tech7 outletsover 16h

Sources: Anthropic and the White House are moving closer to an agreement to lift US restrictions on Fable 5 and Mythos 5 (Bloomberg)

The United States has lifted its block on Anthropic’s Mythos 5, permitting the model to be deployed to trusted U.S. organizations, including critical-infrastructure operators. Anthropic can now redeploy Mythos 5 to these partners while negotiations continue over a broader release of Fable 5.

TechMeme·Hacker News·Wired·The Verge·Engadget+2

Tech3 outletsover 12h

Letter: US cybersecurity leaders urge the White House to lift the ban on Anthropic's Mythos and Fable 5, arguing the move hurts defenders more than attackers (Sam Sabin/Axios)

U.S. cybersecurity leaders are urging the White House to lift the ban on Anthropic’s Mythos and Fable 5 models, arguing that the restriction harms defenders more than attackers. They describe the prohibition as dangerous and have traveled to Washington for talks, framing the dispute as a major AI policy confrontation.

TechMeme·TechCrunch·The Next Web

Tech5 outletsover 20h

Source: Howard Lutnick told Anthropic that Mythos 5 and Fable 5 would be subject to export controls after a company claimed it was able to jailbreak Mythos (Axios)

Anthropic has blocked all customer access to its Mythos 5 and Fable 5 models following an export control order from the United States government. While the company is working to restore access and characterizes the situation as a misunderstanding, the government cited national security concerns as the basis for the directive.

TechMeme·Engadget·The Next Web·VentureBeat·The Verge