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Claude subscribers can try the model until June 22 without spending usage credits.

Hey everyone, I got tired of the usual configuration mess in C—manually writing tedious boilerplate to traverse generic JSON/YAML nodes, casting strings to integers, and writing a dozen if statements to handle out-of-range ports or missing environment variables. Worse yet, managing string lifetimes across nested configuration objects. To fix this, I built cfgsafe , an Ahead-of-Time (AOT) schema-driven configuration engine for C99. Instead of processing raw files at runtime, it takes a simple schema file and generates a type-safe, single-header library. I wrote a deep-dive engineering breakdown detailing the philosophy, memory model, and design choices behind it here: Type-Safe Configs in C99: Why I Prefer Code-Gen over Parsing And the github repo: CfgSafe How it works: Define a Schema: You use a simple DSL to declare fields, defaults, constraints (ranges, regex patterns), and sources (Env, CLI flags). Generate: The cfg-gen tool outputs a native C struct with matching validation primitives built straight in. Load Atomically: At startup, you make one call to Config_load . If a field is invalid or missing, it fails fast before your application's hot path even executes. A few specific architectural choices I made: Atomic Memory Pool: To prevent fragmented heap allocations and memory leaks, the generator bundles all incoming string/array values into a single contiguous memory block. Freeing the entire config is reduced to a single call to Config_free() . Zero Overhead Lookups: Because it compiles down to a native C struct, looking up a setting is just a basic memory offset rather than an $O(\log N)$ hash-map lookups or string comparisons. Compile-Time Safety & IDE Autocomplete: If you typo cfg.db.prt instead of cfg.db.port , the compiler refuses to build the app, and your editor knows exactly what fields exist and their data types. Strict Layering & Security: It bakes a strict precedence chain (CLI Arguments > Environment Variables > INI File > Schema Defaults) right int

Netflix's response: "Absurd."

Learn words in context with AI Discussion | Link

Anthropic dropped two models today: Claude Fable 5 (general availability) and Claude Mythos 5 (restricted to cyberdefense partners). The short version: Fable 5 is their most capable model ever released publicly, and they’re being unusually transparent about how they’re handling the risks. What’s actually impressive: -Stripe compressed months of engineering into days with it. In a 50-million-line Ruby codebase, Fable 5 did a codebase-wide migration in a day that would have taken a full team 2+ months by hand.  -On vision tasks, it beat Pokémon FireRed using only raw game screenshots with no maps or navigation aids. Previous Claude models needed complex helper harnesses to even play it.  -Mythos 5 autonomously conducted novel genomics research over a week, assembling single-cell data for millions of cells across 138 animal species. Its trained model outperformed a recent paper published in Science despite being 100x smaller.  -On Cognition’s FrontierCode eval (production-quality coding), Fable 5 scores highest among frontier models, even at medium effort.  The safety approach is interesting: Rather than just refusing dangerous requests, Fable 5 uses classifiers that silently fall back to Opus 4.8 on queries related to cybersecurity, biology/chemistry, and distillation. Users are informed when this happens, and it triggers in less than 5% of sessions on average.  They ran a bug bounty that produced zero universal jailbreaks in 1,000+ hours of testing. UK AISI made some progress toward one in a short initial window, but no full break.  Pricing: $10/M input tokens, $50/M output tokens less than half the price of Mythos Preview.  Caveat on Pro/Max/Team plans: Free access lasts through June 22, then requires usage credits. They say they’ll restore it as a standard plan feature when capacity allows.  The biology capabilities are wild Mythos-class models outperforming dedicated protein language models on AAV design tasks without being trained for it is a real signal

https://web.archive.org/web/20260609200156/https://aarushgup...

New frontier model refuses cybersecurity, biology, and chemistry queries.

How will AI affect our ability to think and judge for ourselves? Our new paper co-authored by 30 experts explores epistemic risks —the threats AI poses to our collective capacity to form beliefs accurately, reason well, and maintain a healthy information environment. We look at how AI can lead to harm through these mechanisms: Persuasion & Manipulation: AI systems are highly persuasive, opening the door for political/economic manipulation, incitement and radicalization, and other misuse, as well as unintentional harms like AI sycophancy and mental health risks. Cognitive Offloading: We may be delegating our thinking to AI at a deeper level than prior technologies, risking long-term degradation of individual and societal cognitive resilience. Feedback Loops: Human-AI and AI-AI interactions are narrowing the epistemic space humans and AIs draw from. This already drives homogenization, and may potentially lead to fragmentation and “lock-in” (a self-referential state that is difficult to reverse). While we believe AI could be an unprecedented lever for improving how humanity processes knowledge, we shouldn’t assume this will happen by default. We outline promising directions to change this trajectory across how AI systems are built, human-AI interaction design, institutional and individual adaptation, and information market incentives. Epistemic risks are self-perpetuating. As they can undermine the individual cognitive and social foundations needed to recognize, prioritize, and govern other threats—including the risks from AI itself—the time to act is now, before our capacity to respond is itself lost. Authors: Mick Yang, Stephen Casper, Jonathan Stray, Jasmine Li, Cameron Jones, Anna Gausen, Natasha Jaques, Brian Christian, Bálint Gyevnár, Hannah Rose Kirk, Zhonghao He, Dan Zhao, Siao Si Looi, Joshua Levy, Kobi Hackenburg, Elizabeth Seger, Matt Kowal, Michelle Malonza, Luke Hewitt, Hause Lin, Maarten Sap, Dylan Hadfield-Menell, Thomas H. Costello, Reihaneh Rabbany, Je

Grab a refreshing slice of cold watermelon (because it’s summer in Tokyo and I love it!), and let me...

Taking advantage of Anthropic during the Pentagon fiasco must have taught him a lesson. submitted by /u/sourdub [link] [留言]

I’m building a website that will eventually become a collection of useful browser-based tools, similar to iLovePDF but covering many different categories. The goal is simple: No downloads No accounts Fast and mobile-friendly Free to use I’m researching what people actually need before building more tools. What’s a small utility, calculator, converter, formatter, generator, or productivity tool you use regularly but wish had a better version? Examples: Land measurement calculators PDF tools Text formatting tools Developer utilities SEO tools Study tools I’d love to hear your ideas and pain points. submitted by /u/Nikpa_2163 [link] [留言]

Latest audio model for live speech-to-speech translation Discussion | Link

Voice translations preserve speaker's tone, pacing, pitch—with SynthID watermarks for security.

From the press release: Today we’re launching Claude Fable 5 : a Mythos-class 1 model that we’ve made safe for general use. Fable 5’s capabilities exceed those of any model we’ve ever made generally available. It is state-of-the-art on nearly all tested benchmarks of AI capability, showing exceptional performance in software engineering, knowledge work, vision, scientific research, and many other areas. The longer and more complex the task, the larger Fable 5’s lead over our other models. Releasing a model this capable comes with risks. Without safeguards, Fable 5’s capabilities in areas like cybersecurity could be misused to cause serious damage. We’ve therefore launched the model with safeguards that mean queries on some topics will instead receive a response from our next-most-capable model, Claude Opus 4.8. To release the model both safely and quickly, we’ve tuned these safeguards conservatively—they’ll sometimes catch harmless requests, though they trigger, on average, in less than 5% of sessions. With more capable models arriving in the coming months, we’re working to improve our safeguards and reduce false positives as quickly as we can. For a small group of cyberdefenders and infrastructure providers, we’re also launching Claude Mythos 5 . It’s the same underlying model as Fable 5, but with the safeguards lifted in some areas. 2 Mythos 5 will initially be deployed through Project Glasswing, in collaboration with the US government, as an upgrade to Claude Mythos Preview. It has the strongest cybersecurity capabilities of any model in the world. Soon, we intend to expand access to Mythos 5 through a broader trusted access program. submitted by /u/alphacolony21 [link] [留言]

If those same AI workloads can be handled by cheaper models without affecting quality, it would mean a massive shift in the economics of AI.

This sounds crazy but it's actually real... These guys from AI Love Jazz are running a music contest, and the top song will be performed on stage by real musicians. What's your take on that? Have you seen anything like this before? Feels like the moment AI is finally blending with the music industry - and it's not as hated as you'd think. I composed songs with Suno AI myself and happy to see such initatives. submitted by /u/Double-Ad-4640 [link] [留言]