Anthropic Releases Claude Fable 5.2 and Mythos 5.2 with Lower API Prices

1. 15:57
   Leiphone

   Baidu Expands Kuku Enterprise Across More Than 600,000 Organizations

   At Baidu World 2026, Baidu announced upgrades across its Kuku product lineup, including Kuku Enterprise, whose capabilities have reached more than 600,000 organizations since launch three months ago. The report says daily task volume has grown to nine times its initial level and monthly visits to 14 times. Kuku Enterprise connects company data, professional workflows, task execution, and existing permissions; in financial research, it supports more than 10 data sources and over 65 data tools.

2. 10:46
   LeiphonePicks

   Baidu Releases ERNIE 5.5 Flash Preview With a Focus on Speed and Cost

   Baidu released ERNIE 5.5 Flash Preview, its third major move in a week, with the model available through the Qianfan platform’s web interface and API. The article describes coding, 3D modeling, knowledge work, and content creation capabilities, alongside benchmark results and hands-on game development tests. Baidu says the weights will be released under Apache 2.0 by November 25, with support for SGLang and vLLM.

1. 14:18
   QbitAI

   Zhipu, MiniMax, Qwen Office, Alibaba Cloud and Qoder Offer 50% Off on Tmall

   Zhipu, MiniMax, Qwen Office, Alibaba Cloud and Qoder are offering discounts of up to 50% on Tmall on November 11. Consumers can search for “Token” in the Taobao app to reach Tmall’s AI Space Station recharge center. The article says Token became a standalone category on Tmall for the first time during this year’s Singles’ Day shopping event.

2. 05:08
   Artificial Analysis · X

   A room full of AI researchers, developers, and engineers. The launch of Intelligence Index v5. A look at where AI evaluation goes next. Highlights from our launch event in San Francisco.

   A room full of AI researchers, developers, and engineers. The launch of Intelligence Index v5. A look at where AI evaluation goes next. Highlights from our launch event in San Francisco.

3. 04:13
   Ethan Mollick · X

   Another weird AI game project: I gave Claude Fable 5.2 a vague paragraph asking for a fantasy transport sim with heart. Then I left it to a bunch of agents arguing about art, lore and jokes. Now here is Dread & District, where good logistics defeats evil. https://t.co/1pdsN8Lnov https://t.co/jKOhDWVU2X

   Another weird AI game project: I gave Claude Fable 5.2 a vague paragraph asking for a fantasy transport sim with heart. Then I left it to a bunch of agents arguing about art, lore and jokes. Now here is Dread & District, where good logistics defeats evil. t.co/1pdsN8Lnov t.co/jKOhDWVU2X

4. 03:03
   TechCrunch · AIPicks

   PSI Seeks a Business in AI-Driven Scientific Discovery

   Physical Superintelligence (PSI) says David Turturean used early access to Anthropic’s Fable 5.2 to solve the Aaronson-Ambainis conjecture, an 18-year-old problem in quantum computing. Scott Aaronson said he believes the Lean-autoformalized proof is correct, though he does not fully understand it; the result rules out one possible route for quantum computers to solve certain problems quickly. PSI currently earns revenue optimizing data centers and aims to turn theoretical physics breakthroughs into technologies, while working on ways to validate computational results through experiments.

1. 15:03
   QbitAI

   Fable 5.2 Demos Span Games, Video, Music, and 3D Creation

   QbitAI rounds up developer demos and early reports on Fable 5.2, including playable games, generated music and video, and 3D scenes. The article reports benchmark gains over Opus 5.5, output speeds up to 30% faster than Fable 5.1, a 1 million token context window, and API prices of $8 per million input tokens and $40 per million output tokens. It also cites complaints about token consumption and cases where gains over Opus 5.5 were limited.

2. 14:34
   Latent SpacePicks

   AINews: Claude Fable 5.2 Leads Benchmarks as Anthropic’s IPO Roadshow Begins

   Latent Space’s AINews issue reviews Anthropic’s release of Claude Fable 5.2 and Mythos 5.2 alongside the start of Anthropic’s IPO roadshow. It reports Fable 5.2’s 16.4% score on SemiAnalysis GDPx, while the cost per task rose to $88.15 from $67.16 despite lower per-token prices. The issue attributes the benchmark result in part to more extensive test generation and subagent checks, and surveys other evaluations, access limits, and reactions.

3. 13:34
   Simon Willison

   Prompting Claude Fable 5.2 to Restructure Code

   Anthropic says Claude Fable 5.2 responds closely to prompts about who owns the code it works on. In tests on small coding tasks, it merged repeated code in about half of the tries when told the codebase was its own, compared with under a tenth of tries without that instruction.

4. 11:53
   Simon Willison

   Simon Willison Shows Yonkers Rising as a Giant Mech

   Simon Willison used Claude Fable 5.2 Medium to create a Three.js animation in which a giant mech shaped like Yonkers rises and stomps through Manhattan, Brooklyn, Queens, and the Bronx. The scene uses OpenStreetMap mapping data and includes a stomp counter and mech height readout.

5. 11:07
   Artificial Analysis · X

   Claude Fable 5.2 Leads VIALS-AA Scientific Visual Reasoning Benchmark

   Claude Fable 5.2 leads scientific visual reasoning benchmark VIALS-AA; it makes more tool calls than any other Anthropic model, unlike OpenAI models, which make fewer as they get smarter VIALS-AA is our implementation of @joinHandshakeAI’s VIALS benchmark for visual reasoning in t.co/YYir6yVBSp

6. 06:21
   Ethan Mollick · X

   Ethan Mollick Shares an Experiment Building an Endless Journey Through 3D Worlds

   Ethan Mollick describes asking Fable 5.2 to build an endless, hands-off journey through 3D worlds linked by portals. He says 25,000 agents created over 450 worlds inspired by books, art, and places, all in code. He links to a playable version and GitHub.

7. 06:16
   Ethan Mollick · X

   Ethan Mollick Uses Claude 5.2 to Build a Portal Journey Through 3D Worlds

   Ethan Mollick says he asked Claude 5.2 to build an endless, hands-off journey through 3D worlds linked by portals. He reports that 25,000 agents created over 450 worlds inspired by books, art, and places, all in code. He shared links to play and to GitHub.

8. 06:16
   Alex Albert · X

   I gave Fable 5.2 a PDF of one of Leonardo da Vinci’s 500-year-old notebooks and it made his inventions real for me to interact with. Such an exciting time for education. Anything from history that’s been stuck on a page can now be something you explore. https://t.co/MVSz3pc4To

   I gave Fable 5.2 a PDF of one of Leonardo da Vinci’s 500-year-old notebooks and it made his inventions real for me to interact with. Such an exciting time for education. Anything from history that’s been stuck on a page can now be something you explore. t.co/MVSz3pc4To

9. 05:22
   Epoch AI · X

   Claude Fable 5.2 Sets a New Epoch Capabilities Index Record

   Epoch AI reports that Claude Fable 5.2 scored 174 on the Epoch Capabilities Index, above the previous high of 169 set by GPT-6 Astra. The score is above what the pre-Astra trend for reasoning models would have predicted. Epoch AI says the result is based on pre-launch testing using only its own benchmarks, and the index may change as more results become available.

10. 05:15
    The DecoderPicks

    Anthropic’s Claude Fable 5.2 and Mythos 5.2 Reclaim the AI Performance Lead

    The Decoder reports that Anthropic’s Claude Fable 5.2 and Mythos 5.2 reclaim the AI performance lead on several benchmarks, while Opus 5.5 remains the company’s recommended model for everyday use. Fable is available to all users with safeguards that block risky cybersecurity and biology tasks; Mythos removes some restrictions and is limited to organizations applying through Anthropic’s verification programs. Artificial Analysis places Fable 5.2 first on its current Index v5 at the highest compute tier, though the article notes weaker results in agentic knowledge work and terminal-based coding.

11. 05:06
    Claude · X

    During pre-release testing, Claude Fable 5.2 and Claude Mythos 5.2 worked on ambitious projects in many different fields. Here are a few. From a one-paragraph prompt, Fable 5.2 designed three working electronic devices, including this home voice assistant hub.

    During pre-release testing, Claude Fable 5.2 and Claude Mythos 5.2 worked on ambitious projects in many different fields. Here are a few. From a one-paragraph prompt, Fable 5.2 designed three working electronic devices, including this home voice assistant hub.

12. 04:04
    AWS Machine Learning BlogPicks

    AWS Announces Claude Fable 5.2 and Mythos 5.2 Availability

    AWS announces that Claude Fable 5.2 and Claude Mythos 5.2 are available on Amazon Bedrock and Claude Platform on AWS. Fable 5.2 is generally available for technical work, while Mythos 5.2 is limited to Anthropic verification programs for cybersecurity and life sciences. The post also covers Bedrock retention requirements, access options, and migration guidance using the claude-api skill in Claude Code.

13. 03:52
    Cursor · X

    Claude Fable 5.2 Becomes Available in Cursor

    Claude Fable 5.2 is now available in Cursor. Cursor says it scores 60% on CursorBench at max effort and 56.9% at default effort, up from 49.2% for Fable 5.1 at default effort.

14. 03:45
    Artificial Analysis · XPicks

    Artificial Analysis Reports Claude Fable 5.2 Leads Its Intelligence Index

    Artificial Analysis reports that Anthropic's Claude Fable 5.2 ranks first on the Artificial Analysis Intelligence Index v5, scoring 65 at max effort. It leads five of nine evaluations, with reported strengths in science, knowledge, and FrontierCode 2.0; results on AA-Briefcase and Terminal-Bench 4.0 are roughly level with Claude Opus 5.5. The post lists pricing of $8/$40 per 1 million input/output tokens and a max-effort cost per task of $26.5.

15. 03:29
    Perplexity · XPicks

    Claude Fable 5.2 Reaches Perplexity Computer and Search

    Perplexity says Claude Fable 5.2 is now available in Perplexity Computer for Pro and Max subscribers, and in Search for Max subscribers. On Perplexity's WANDR benchmark, it achieved a score of 0.851 at $14.51 per task, which the post describes as a Pareto frontier of performance and efficiency.

16. 03:24
    TechCrunch · AIPicks

    Anthropic Releases Mythos 5.2 and Fable 5.2 Amid RSI Concerns

    Anthropic released Mythos 5.2 and Fable 5.2, citing improvements in coding, reasoning, vision, and user communication. Fable now costs $8 per million input tokens, returns responses 30% faster, and supports zero data retention policies through Enterprise Frontier Safeguards. The release follows a METR report suggesting internal models were speeding Anthropic’s AI progress by roughly 2x; Anthropic also described challenges in evaluating models’ real-world behavior and covert capabilities.

17. 03:21
    Boris Cherny · XPicks

    Claude Fable 5.2 Gives Longer-Standing Subscribers More Resets

    Boris Cherny says that with Fable 5.2, subscribers receive more Fable resets the longer they have been subscribed. He links to Claude's announcement of Claude Fable 5.2 and Claude Mythos 5.2, which describes improvements in coding, reasoning, and vision.

18. 03:20
    Boris Cherny · XPicks

    Anthropic Introduces Claude Fable 5.2 and Claude Mythos 5.2

    Boris Cherny says subscribers who have been with the service longer will receive more Fable resets with Fable 5.2. He links to Claude AI's announcement of Claude Fable 5.2 and Claude Mythos 5.2, which describes improvements in coding, reasoning, and vision.

19. 03:18
    BaoyuPicks

    Claude Fable 5.2: Pricing, Access, and Benchmark Comparisons

    Baoyu summarizes Anthropic’s release of Claude Fable 5.2 and Claude Mythos 5.2, including API pricing, subscription access, and safety restrictions that distinguish the two. The report compares benchmark results across coding, chart reading, business process automation, and simulated robot control, and describes a Lean formalization project. It notes that the cited evaluation figures come from Anthropic’s announcement and have not been reproduced by third parties.

20. 03:10
    Ethan Mollick · X

    Ethan Mollick Demonstrates Fable 5.2 and Jagged AGI

    Ethan Mollick says he had early access to Fable 5.2 and uses demonstrations of launching a business, conducting academic research, hacking hardware, and building 3D models to illustrate what he sees as its powers and limits. He describes it as a sort of Jagged AGI and links to a longer article.

21. 03:09
    Aravind Srinivas · X

    Fable 5.2 Is Now Available on Perplexity

    Fable 5.2 is now available on Perplexity, where users can access it inside Computer or create Teammates with Fable. The post says Fable beats Gemini Argon by a solid margin on Wide and Deep Research tasks (WANDR).

22. 03:09
    Alex Albert · X

    Alex Albert Says Robotics Will Follow the Bitter Lesson

    Alex Albert says robotics will follow the bitter lesson, linking to a post from Claude AI. The cited post says Fable 5.2 improved at controlling physical robots, including on tasks it had never explicitly been trained to do, and outperformed other models and most AI systems built to control robots on RoboDojo, a simulated two-arm robot benchmark.

23. 03:09
    BaoyuPicks

    Anthropic Releases Claude Fable 5.2 and Mythos 5.2 With Lower API Prices

    Anthropic released Claude Fable 5.2 and Claude Mythos 5.2 on November 9, with API prices reduced from $10/$50 to $8/$40 per million input/output tokens. The post reports benchmark results across coding, chart reading, and robotics, while explaining that Fable is available to paid users with safeguards and Mythos is limited to approved institutions. It also details temporary subscription quota changes and notes that the reported benchmark figures come from Anthropic and have not been replicated by third parties.

24. 03:08
    Alex Albert · X

    Alex Albert Shares Tips for Getting the Most Out of Fable 5.2

    Alex Albert says Fable 5.2 feels like a major step above Opus 5.5 on big, open-ended work. He recommends asking it to critique an idea before building, starting at medium or high effort and reserving extra high for the hardest problems, setting approval boundaries up front, and assigning a whole project it can run for hours.

25. 03:04
    Mike Krieger · X

    Mike Krieger Announces Claude Fable 5.2 and Mythos 5.2

    Mike Krieger says Claude Fable 5.2 and Mythos 5.2 are out today. He describes Fable 5.2 as sharp on complex problems and says researchers working with it solved two theoretical physics problems. Krieger also says he pairs Fable with Opus 5.5 for strategy work.

26. 03:00
    Anthropic · XPicks

    Anthropic Says Claude Fable 5.2 and Claude Mythos 5.2 Are Available Now

    Anthropic says Claude Fable 5.2 and Claude Mythos 5.2 are available now. The linked announcement describes them as collaborators for technical challenges and cites improvements in coding, reasoning, and vision.

27. 03:00
    The Verge · AIPicks

    Anthropic Launches Claude Fable 5.2 and Claude Mythos 5.2

    Anthropic announced Claude Fable 5.2 and Claude Mythos 5.2, claiming improvements in coding, reasoning, and vision, with faster output than the 5.1 versions. The company says Fable 5.2 can handle challenging software engineering problems and long-running projects; it is launching today. Access to Mythos 5.2 will initially be limited to vetted organizations. Anthropic also cited prerelease examples including software migrations, electronic devices, and open physics problems.

28. 02:57
    Claude · X

    Anthropic Introduces Claude Fable 5.2 and Claude Mythos 5.2

    Anthropic introduces Claude Fable 5.2 and Claude Mythos 5.2, describing them as designed for demanding technical challenges. The company says they are capable collaborators on ambitious projects and show improvements in coding, reasoning, and vision.

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