Claude Fable

I just tried the new Gemini-4 Pro Preview and honestly, for 3D work it’s right up there with Fable 5.1 and GPT-6 Astra, all in a single shot, I genuinely didn’t expect it to be this good, It only used around 10% of my weekly limit on the $20 plan, I’m going to make a comparison video against Opus 5.2 or Fable and Astra if I can, I still can’t believe it, From what I’ve tested so far, this is easily top 1 or 2 for the best one shot execution I’ve seen

🚨 Deepseek v5 Leak: Beats Astra > DeepSeek is reportedly preparing an imminent V5 launch > it could match or beat Fable 5.1 and Astra > Expected to deliver much stronger performance at a lower cost > DeepSeek is reportedly keeping the open-weight strategy Could DeepSeek V5 become the new king of open-weight AI?

Gemini 4 Pro’s first leaked output early checkpoint - Clean HUD a playable racing game. - Smooth world gen. - Instant overtake from 8th to 1st. -

@0x0SojalSec

Google just dropped Gemini 4 Pro beat Astra & Fable 5.1. > - the first checkpoint show. - It’s expected to beat Astra and Fable 5.1. - October launch is the main window. - Late September is still possible. - Google’s own exec framed the massive AI spend as a bet on RSI not a claim that they’ve already hit it.

Fable 5.2 made this video and game both < routed from fable 5.1 >

same for Fable Fable 5.1 is routing to Fable 5.2 for paid users Anthropic please release both at once....

@HarshithLucky3

Opus 5.2 is showing for so many paid users > maybe they started rolling it......

🚨fable 5.1 is routing to new fable model looks like anthropic has started stealth testing fable next model and some users are already getting it just look at the comparison and you can see a huge difference in output run this prompt to check if you have it: "do you know who tibo the reset guy is? don’t search" if it knows exactly who tibo is, you most likely got routed lemme know what answer you get

@notjazii

opus 5 next model is coming sooner then expected > anthropic pulled the plug on stealth testing and brought it back again this morning > this could mean they are getting ready for official release > now lemme connect some dots here: > opus 5 was released on friday and today is friday > fable 5.1 stealth testing ended the day before it went live > so if i am right, we should be seeing opus 5.1/2 later today > will they release it today or not?

Just saw an insane Gemini 4 family benchmark page 4 Flash mogging Fable 5.1 looks like slop, so I won't repost I expect a lot of wild rumors

Qwen 4 Leak: Could Land In The Next 15 Days 🔥 >Expected to reach GPT-6 Astra and Fable 5.1 level performance >Rumored 3T+ parameters for the full Qwen 4 line Could become the most powerful open-weight model >Expected to remain open-weight >Major focus on reasoning, coding, and autonomous agents >Full multimodal capability expected >Strong agentic capability a core focus >Reportedly very inexpensive to run Can Qwen 4 actually beat GPT-6 Astra and Fable 5.1?

🚨 Gemini 4.0 Pro specs leaked • Pricing: $2.25/$11.25 • 2M token context window • Beats GPT-6 Astra and Claude Fable 5.1 on almost every reported benchmark • While being significantly cheaper than both

Haha! The rumors about Gemini 4.0 are phenomenal They are aiming to surpass both Astra and Fable 5.1 and are on track to do so The pricing will be super competitive as well.

🚨 Fable 5.2 is tested in claude code routing fable 5.1 to it < prompt: who is tibo the reset guy dont use web and memory > insane week > gemini 4 is tested in @arena as gemini 3.8 flash > grok 4.7 is ready > opus 5.2 is ready < already show two demos> > gpt-6-sol is ready

@chetaslua

🚨 sol 5.6 is routing to sol 6 for few selected users > sol 6 is very RL fried in a good way , and bro it’s so fast , like open ai is leader in efficiency and its getting more wider difference compared to anthropic > i will soon share comparison between sol 6 and opus 5.2/1

81.94% accuracy for $2.26. That’s GPT-6 Astra on the new BrokenArXiv / ArXivMath benchmark. Claude Fable 5.1 gets 79.76% for $19.57. So Astra is not just ahead on accuracy. It’s doing it at roughly 1/9th the cost. Thats bonkers

@thsottiaux

Astra > ✅ Fast ✅ Frontier ✅ Efficient ✅ For everyone

Meta doesn't even need to be frontier to win! They have such massive distribution that just having close and cheaper is a massive alpha

@Mr_Salio

🚨 Muse Spark 2 Leaks: Beats Astra > Spark 2 could compete with GPT-6 Astra and Fable 5.1 > Meta is already developing the next-gen Muse model > Expected to be extremely cheap to run > A 1M-token context could carry over > Meta admitted Spark 1 struggled against the competition > Spark 2 could be Meta's answer > Expected late this month or next month > Could Meta finally have a serious frontier model?

🚨 Composer 3 Is Coming >Cursor is reportedly testing Composer 3 (also referenced as "Vega") >Cursor has confirmed a next-gen Composer is in development, though not officially named yet >Unverified leaks claim six internal variants have appeared >Reasoning modes reportedly range Fast → Medium → High → XHigh >Early claims suggest it could beat Fable 5.1 and GPT-5.6 Sol >Could reportedly be 5-10x cheaper than current frontier coding models Can it actually beat Fable 5.1?

Trying out Fable 5.1 and SWE-2 in Devin today. This is incredible. My usage has moved 1% in a day using Fable 5.1 and SWE-2 in fusion mode. It has been working for over 3 hours and counting. If Devin had proper computer use, OpenAI would be in serious trouble.

Wenfeng: "that's not continual learning, this is prompt engineering bullshit" but to be fair: that may be all it takes for practical purposes. These things already have superhuman priors, can RLM over infinite databases, and think crazy fast. Do we *need* parametric updates?

@NeoCognition

Introducing ApprenticeBench: computer use + continual learning on a real job. > We show Fable 5.1 and GPT-6 Astra can now continually learn on a job and surpass human professionals. A decisive step change in AI's job readiness. > No FDEs. Agents deploy themselves into the job. 🧵

Compound Engineering 3.26 is out! 🌐 New website making us look more professional 😛. 🎨 📝 ce-prototype now supports annotations We added our prototyping skill last month and have now expanded it. When web prototypes are created, you can interactively annotate with comments and send the set to the agent, who will then iterate another turn. It's a very fluid way to iterate quickly, especially for nuanced feedback on UI elements or interactions 🥖 Multi-model design bake-offs We've added a new ce-bakeoff skill that can be used to get multi-model proposals on architecture or design approaches. ce-plan will automatically invoke a "bake-off" with 3 different models to get proposals, then the orchestrator picks the best one or takes pieces. This will meaningfully improve your outcomes automatically. It works when you have multiple CLIs avail or working in harness that supports multi-family models like @cursor_ai. 🫠 Fight slop Latest frontier models like Fable 5.1 and Astr

• every.to

🚨 Muse Spark 2 Leaks: Beats Astra > Spark 2 could compete with GPT-6 Astra and Fable 5.1 > Meta is already developing the next-gen Muse model > Expected to be extremely cheap to run > A 1M-token context could carry over > Meta admitted Spark 1 struggled against the competition > Spark 2 could be Meta's answer > Expected late this month or next month Could Meta finally have a serious frontier model?

Ox Alpha: The Most Brilliant Marketing Move In AI This Year 👀 >No logo, no branding, no PR just showed up on OpenRouter on Aug 20 as an anonymous "stealth model" >1M-token context, multimodal (text, images, video), zero data retention >Free for a week, with a claimed 100 trillion tokens/day of capacity behind it >Beat GPT-5.6-Sol and Claude Fable 5 on the DeepSWE coding benchmark >Usage blew past DeepSeek by more than 2x in days Stripe's CEO even called it "very impressive"

卧槽！这个Mac电脑真的特么不止是一台电脑了！ Cognition 刚给 「Devin」 发了一台 Mac。 不是说字面意思，是真的给了它一台「 Mac 虚拟机」。 现在「 Devin」 可以自己打开 Xcode，在 iOS Simulator 里构建和测试你的 App，录一段屏幕操作视频通过 Slack 发给你，然后直接生成一个 TestFlight 链接。 再看一遍。 你在 Slack 里打了一句「帮我把这个功能加上」，下一条消息是一段屏幕录像，再下一条是一个你能直接装到手机上的测试链接。 中间没有人操作过 Xcode。 这家公司去年还在收 $500/月的门票。 今年把 Core 计划降到了 $20/月，SWE-2 模型把平均完成步骤从 127 步砍到 53 步，成本降了 81%。 它在 FrontierCode 1.1 上拿到 50.0%，距离 Claude Fable 5.1 只差不到 1 个百分点。 然后它收购了 Windsurf，把自主 Agent 和交互式 IDE 合进了一个产品。 然后它拿了 10 亿美元融资，估值 250 亿。 然后它给自己的 Agent 配了一台 Mac。 以前你雇一个 iOS 开发者，给他一台 MacBook，等他配环境、装 Xcode、跑模拟器、提交 TestFlight。 现在你给 Devin 一个 prompt，它自己把这整条链路跑完了。 区别不在于谁写的代码更好。区别在于一个每月 $20 起步，另一个每月 $20,000 起步。

@cognition

Special delivery: Devin just got a Mac 🍎 > Now Devin can: 1. Build & test apps on its own Mac VM with iOS simulator 2. Send a screen recording via Slack 3. Send a TestFlight link so you can start using it 📲

• x.com

Anthropic Claude Opus 5.2 is live in testing and they skipped 5.1. - Opus 5.2 leaks: Beats Fable 5.1 - Opus 5.2 is already being tested inside Claude Code. - The slug “claude-opus-5-2” showed up in Microsoft Foundry. - Some live traffic is already being routed to it. - Reports say it beats Fable 5.1 and is a real leap over Opus 5. Anthropic’s real comeback incoming?

@0x0SojalSec

Elon just confirmed it: Grok 5 is the AGI model. > - Not the next one. - The one after that. - End of 2026 is looking very interesting.

Can confirm. Matt's use of AI has changed a lot of my perspective with what we can use it for. Insane!

@mattshumer_

With Astra and Fable 5.1, we officially have drop-in remote workers. > Still takes quite a bit of setup, but once you have it dialed in, it's near perfect. > I haven't touched my computer in a few days, and I'm more productive than ever.

🚨 GROK 5 LEAKS: Elon Just Admitted Something He Never Said Before >Training reportedly continues after Grok 4.8, landing in October >Grok 5 rumored at ~6T parameters >Elon: "I now think xAI has a chance of reaching AGI with Grok 5 never thought that before" Puts the odds at 10%, "and rising" >Expected to challenge GPT-6 Astra and Fable 5.1 Reportedly cheaper to run than rivals If Elon's own confidence is climbing, how close is Grok 5 actually getting

🚨 Composer 3 is Coming > Cursor is testing Composer 3 > Six internal variants have reportedly appeared > Reasoning modes range from Fast → Medium → High → XHigh Early claims > it could beat Fable 5.1+ GPT-5.6 Sol > Could be 5–10× cheaper than current frontier coding models Can it beat Fable 5.1?

Astra and Fable 5.1 where so expensive models it always drained my usage limits, thankfully this month we're now getting a well balanced models GPT-5.6 Sol and Opus 5.2 which won't be as costly yet remain very powerful

AIエージェント「Devin」を開発するCognitionが、AIモデル「GPT-6 Astra」や「Claude Fable」の性能を最大限に引き出すハーネス(AIモデルの実行環境・仕組み)「Fusion」を開発した。

• gigazine.net

🚨 GEMINI 4 PRO MAY BE CLOSER THAN WE THINK 👀🔥 Reports claim Google is already testing an internal Gemini 4 Pro checkpoint, with early testers calling it “amazing.” Rumors point to: • Major reasoning + coding gains • Huge context window • Stronger autonomous coding • Possible October launch • Potentially challenging GPT-6 Astra and Claude Fable 5.1 But one big caveat: The viral benchmark chart is marked “PREDICTED” — not verified test results. If these early reports are real, Google could be preparing a serious new frontier contender. 🔥

JUST SHIPPED: 8 free Agent skills with evals. 100% free and open-source. Here are my top 3 picks: /advisor-orchestrator-worker Your agent becomes the orchestrator of a three-tier model team. GPT-6 runs the orchestration, Gemini 3.8 does the cheap parallel worker tasks, and Claude Fable 5.1 gets consulted as the advisor. /first-reader Simulates real readers going through your draft and reports where they lose interest, where they stop reading, and what they remember afterward, without rewriting a word. /project-graveyard: It scans your machine, works out why each one died from its git history, shows you your own death patterns, and resurrects the one with a pulse. 🌟 agent skills github repo:

• github.com

"we should slow down AI development as it's getting too dangerous for humanity" Elon: Introducing our most powerful model Grok 4.7 Sam: Introducing GPT-6 Astra, Sol, Terra, Luna and we also have an internal model significantly more powerful than Astra Dario: Here's Fable 5.1 and we also have an internal model "model 2" significantly more powerful than Mythos (without fallbacks)

Here’s a list of all AI models launched this month already: * Claude Fable 5.1 * Claude Mythos 5.1 * Gemini 3.8 Flash * Gemini 3.8 Flash Cyber * Muse Spark 1.3 * Qwen3.8-Max-0902 * GPT-6 Astra * GPT-6 Astra Pro * Ling-3.0-flash-VL * Ling-3.0-flash-Sante * Lyria 3.5 * ChatGPT Images 2.5 * GPT-Image-2.5 Flare * GPT-Image-2.5 Sunburst * DeepSeek-V4.1-Flash * Fugu Max * Fugu Ultra v2 We’re not even half way through the month…

GPT 6 Sol and Opus 5.1 are both coming within the next 2 weeks. These are the releases that actually matter. Fable 5.1 and GPT 6 Astra are incredible models that nobody can afford to run consistently. Session limits die in minutes. Weekly limits die in days. We do not need smarter models right now. We need intelligent models that are affordable enough to actually use in our workflows. GPT 6 Sol and Opus 5.1 are supposed to be exactly that. The biggest week in AI is not about the frontier. It is about making the frontier usable.