Joined May 2009
1,605 Photos and videos
Pinned Tweet
18 Nov 2025
sneak peek at @edgefoundxyz new desktop app. Building a setup on $BTC. high => low => sweep the low => reclaim ema 10
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Jun 13
They reset your limits but you can't use it. Nice one @AnthropicAI
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Jun 10
taking advantage of Claude Fable being included in the Max plan to review/improve all my tooling. So far it's been doing a pretty good job, this model really is smart(-er)
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Jun 10
Now that's what i call resetting the limits: you reset the limit, you keep the next reset date unchanged. I had used 40%; i'm back to 0%, that's real free credits.
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guybedo retweeted
This is a super exciting release - Claude Fable 5 is the same underlying model as Mythos but with added safeguards. The benchmarks are great and it's SOTA on everything by a margin but I'll add that *qualitatively* also, this is a major-version-bump-deserving step change forward (imo of the same order as Claude 4.5 was in November), peaking especially for long problem-solving sessions on very difficult problems. You can give it a lot more ambitious tasks than what you're used to, the model "gets it" and it will just go, and it's never felt this tempting to stop looking at the code at all (but don't do this in prod!). The model still has quirks that people will run into and the safeguards are configured to be a little too trigger happy for launch, which can hopefully be tuned over time. I feel a lot of things changing as working software increasingly comes out on a tap. The Jevon's paradox kicks in and I feel my own demand for software growing substantially. You can ask for anything - explainers, visualizers, dashboards, bespoke single-use apps (e.g. a full wandb that is hyper-specific just for your project), you can 10X your test suite, auto-optimize code, run giant research projects with custom HTML for the results, anything! "Free your mind" (Matrix ref). Really looking forward to all the things people build!
Replying to @claudeai
Fable 5 is state-of-the-art on nearly all tested benchmarks, with exceptional performance in software engineering, knowledge work, scientific research, and vision. The longer and more complex the task, the larger Fable 5’s lead over our other models.
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i've started using Claude Fable to do some high level analysis/reviews of projects i'm working on, and it's really good.
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this thing is really smart. I've been working with gpt 5.5 and opus 4.8 quite extensively, and interacting with fable makes me feel like an adult just entered the room.
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guybedo retweeted
Claude Mythos and Fable 5 Benchmarks Anthropic is SOTA everywhere
Claude Mythos 5 and Claude Fable 5 Benchmarks
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guybedo retweeted
Wow.
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guybedo retweeted
A French engineer who lives quietly in Paris has spent 30 years writing software that the entire internet now runs on without knowing his name. He wrote the code that streams every YouTube video, every Netflix show, every TikTok clip. He wrote the code that runs the virtual servers underneath AWS, Google Cloud, and Microsoft Azure. He calculated more digits of pi than anyone in history. He has no Twitter. He has no marketing. He just keeps shipping. His name is Fabrice Bellard. Here is the story, because almost nobody outside the systems programming world knows what one man has built. Fabrice was born in 1972 in Grenoble, France. He studied at Γ‰cole Polytechnique, the top French engineering school. He never went to Silicon Valley. He never built a startup empire. He just wrote code. In 2000 he started a project called FFmpeg, an open-source multimedia framework for encoding, decoding, and streaming video. He was 28. The project did one thing nobody else had done well. It handled every video and audio format that existed, in one library, on every operating system. He led it himself for years. Today FFmpeg is the invisible engine of the internet. YouTube uses it. Netflix uses it. VLC uses it. Chrome and Firefox use parts of it. Every Android phone, every iPhone, every smart TV, every video editing tool you have ever touched runs FFmpeg somewhere underneath. If you have watched a video on a screen in the last 20 years, Fabrice's code processed it. He was not done. In 2003 he started QEMU, a machine emulator and virtualizer. He wrote it solo until version 0.7.1 in 2005. QEMU lets you run any operating system on any other operating system. It became the foundation of modern virtualization. KVM, the Linux kernel hypervisor, runs on top of QEMU. Every major cloud provider, AWS, Google Cloud, Microsoft Azure, IBM Cloud, runs virtual machines on infrastructure built around it. The Quick Emulator is the most cited piece of cloud infrastructure code on Earth. He kept going. In 2001 he won the International Obfuscated C Code Contest with a small C compiler that grew into TCC, the Tiny C Compiler. TCC can compile and boot a Linux kernel from source in under 15 seconds. In 2004 he calculated the most digits of pi ever computed at the time, using a personal desktop computer and an algorithm he derived himself called Bellard's formula. In 2011 he wrote a complete PC emulator in pure JavaScript that runs Linux in your browser, a project called JSLinux that engineers still cannot believe is real. In 2019 he released QuickJS, a small but complete JavaScript engine that fits where V8 cannot. In 2021 he released NNCP, a neural network based lossless data compressor that immediately took the lead on the Large Text Compression Benchmark. Then he turned his attention to large language models. He built TextSynth Server, a web server with a REST API for running LLMs locally. He released ts_zip and ts_sms, compression utilities that use language models to compress text and short messages at ratios traditional algorithms cannot reach. He released TSAC, a very low bitrate audio compression system. In December 2025 he released Micro QuickJS, a new JavaScript engine for microcontrollers, separate from QuickJS, designed for environments with almost no memory. Fabrice co-founded a telecom company called Amarisoft in 2012, where he serves as CTO. Amarisoft builds 4G and 5G base station software used by carriers and labs around the world. He has been running it for over a decade while continuing to ship personal projects from his own home page at bellard dot org He has no Twitter. He has no Instagram. He gives almost no interviews. His personal website is a flat list of projects with no styling, no fonts, no marketing copy. Just titles and links. A quiet French engineer who never moved to Silicon Valley wrote the code that quietly runs the internet. He is still shipping.
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guybedo retweeted
Welcome to the world Mr Claude Fable 5 (mythos) Final checkpoint
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i asked Claude to to some websearches, it automatically started using his new workflow features, and just proceeded to use massive amounts of tokens. For a websearch. >3M tokens
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guybedo retweeted
Llevo un buen rato rodando por el suelo con esto

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LOL Claude sets his timer and thinks he's sleeping for 5min when in fact he launches the timer in the background and just comes back immediately: "it's been going for 50 mins...55 mins..."
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guybedo retweeted
🚨 SWE-rebench big March-May update! SWE-rebench is a live benchmark with fresh SWE tasks (issue PR) from GitHub. updates: > we collected more fresh and complex tasks > we ran 110 tasks Γ— 5 for each model / scaffold > the differences between models and scaffolds are now easier to distinguish > we will update the task set every two months, with model updates in between insights: > GPT-5.5 xhigh takes #1 with 62.7% resolved and 70.0% pass@5 > Cursor with Composer 2.5 is very cheap and strong: around 8Γ— cheaper than Claude Code and Codex, and scores higher than open-weight models! @leerob Model updates will come in 1–2 weeks. Please send requests for models you want us to run! πŸ† Full leaderboard (check for price / tokens per problem, pass@5, scaffold params, etc): swe-rebench.com πŸ‘Ύ Join our Discord: discord.gg/V8FqXQ4CgU
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May 24
i just started using tailscale as i had to move for the week. It's been super easy to setup and it just works.
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ANTHROPIC πŸ”₯: Mythos 1, "claude-mythos-1-preview", is being prepared for a release on Claude Code and Claude Security. The model became visible for a short amount of time on Claude; besides that, new strings mentioning Mythos have been added. > Access to the Claude Mythos model in Claude Code and Claude Security. It still doesn't mean the general public will have access to this exact model, according to Anthropic's earlier communication. More below πŸ‘‡
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guybedo retweeted
May 22
Liftoff of Starship!
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