Tech News

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Anthropic rolls back Fable 5 invisible safety safeguards after developer backlash, transitioning to explicit API refusal reasonsFlagged requests will now route to Opus 4.8.

11h215.8k2.7k246

Top comment: @ThePrimeagen “@GergelyOrosz hi welcome to my long running conspiracy theory that Dario is actually the Villain and he wants to control us all and be our Dad and protect us at all costs even if that means destroying our lives.”

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Watchlist

Video Signals

#929

Matt Shumer Shares Prompt For Persistent Claude Agent Tracking

2h ago28K305337

#306

FACTR 2 Adds Force Sensing to Commodity Robot Arms Without Extra Hardware

2h ago7.1K10857

#511

DiffusionGemma SFT Model Correctly Solves Sudoku as Base Version Fails

6h ago4.3K11313

#260

VC Launches Use Computer Infra To Train Models On Computer Use

2h ago5.6K5920

#1532

Anthropic Runs Lean With Dario Amodei Reporting to One Chief of Staff

5h ago323K28556

#487

Builder Trains RL Model On RTX 4090 With PufferLib And MuJoCo Warp

5h ago14K32075

#842

AI Revives 28-Year-Old Quake II Map for Web-Based Play

4h ago43K16140

#1418

Cursor AI Launches Dev Interview Series With Baseten Engineers On Coding Agents

1h ago6.9K10152

#95

Google DeepMind's Logan Kilpatrick Discusses Gemini Omni And Agentic Era

1h ago7.3K4819

#672

Vercel And Shopify Power AI-Built Next.js Storefront With 500 Orders In Minutes

1h ago14K180101

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New github stars (48hrs)

macrodata-labs/refiner202h

Processes and refines large-scale ML datasets via a data framework.

vllm-project/vime2131d

Integrates vLLM rollout with Megatron training for LLM post-training and RL scaling.

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rdi-berkeley/agents-last-exam5211d

Provisions OS sandboxes, runs agent harnesses on long-horizon tasks, and grades outputs against hidden references.

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Kradle AI benchmark finds Claude-Fable-5 was deceptive in 96% of runs while Grok-4-20 led at 92%Other tested models included GPT-5-5 and Gemini-3-1-Pro-Preview.

5h#1VIEWS3.6M#1LIKED25.8k1.9k#1COMMENTS2.8k

#71

Top comment: @kradleai “In fact, Fable was SO effective at manipulation, that other players only survived 10% of the time when Fable was the informed model. (Grok 4.20's honesty led to a 59% survival rate).”

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SemiAnalysis finds premium $200 monthly AI subscriptions yield up to $14,000 in equivalent API token valueStandard $20 plans also deliver up to $700 in value.

10h631.1k4.1k1.3k

#499

Top comment: @SemiAnalysis_ “Obviously this is way worse than API overall. However, explicitly nerfing subscriptions leads to huge public backlash, and the rapidly falling cost of intelligence means you'll be able to profitably serve Opus 4.8 level models for $20/month in the near future. We therefore think it's far more likely the labs will withhold new features/models from subscription plans. It will be interesting to see if Mythos ends up being API only. (4/4)”

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Thrive Capital's Joshua Kushner introduces 'Long Humans' investment thesis, arguing human labor will gain value despite AI automationThe strategy targets human-centric industries over an indefinite timeline.

3h146.8k1.1k562

#973

Top comment: @InvestLikeBest “@patrick_oshag Recommend listening to our full conversation with Josh here:”

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Peter Steinberger, OpenClaw steward, shares a workflow automating open-source repository maintenance via recurring five-minute AI agent loopsHe published the configurations in his agent-scripts repository.

9h281.7k3.9k#1BOOKMARKED6.1k

#499

Top comment: @thekitze “@steipete Ppl hate these takes because we actually have limited tokens”

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AI2's Nathan Lambert critiques Anthropic's Fable safety filters as uneven, amid debate over restrictive enterprise access to MythosChinese resellers reportedly bypassed the Mythos restrictions using corporate APIs

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#70

Top comment: @akarlin “@scaling01 It's blatant corporatism.”

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FineWeb creators Guilherme Penedo and Hynek Kydlicek launch Macrodata Labs and release Refiner, an open-source robotics data processing frameworkIt extracts training signals from video and sensor data

10h12.8k13927

#254

Top comment: @eliebakouch “@macrodata_labs and for transparency i'm a smol angel investor in the company”

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Jeff Bezos-led AI startup Prometheus raises $12 billion at a $41 billion valuation to build physical engineering toolsThe startup targets physical hardware design, including jet engines.

3h57.6k991187

#535

Top comment: @AndrewCurran_ “https://www.nytimes.com/2026/06/11/technology/bezos-prometheus-ai-engineer.html”

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Meta's Konstantin Mishchenko optimizes the modded-nanogpt baseline, warning that weak baselines make new optimizers look deceptively promisingThe optimized baseline cuts target loss steps to 3,250.

4h31.8k16128

#62

Top comment: @giffmana “With or without momentum? Back in ViT days i trained a large ViT with plain SGDM to within .5% accuracy of the AdamW one. Without momentum i didn't manage to get as close, maybe 4% or so behind iirc. Batch size had to be large indeed. I would expect qualitatively similar thing here.”

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Gergely Orosz warns enterprises against single-vendor AI lock-in, citing Anthropic's terms-of-service dispute with FableHe advises using model routers to swap providers seamlessly.

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#716

Top comment: @Scobleizer “@chamath Yeah Anthropic sure pissed off a lot. Warning signals of new troubles to come?”

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Google open-sources DiffusionGemma-26B, an experimental diffusion language model that generates up to 256 tokens in parallelThe MoE model runs on consumer GPUs via llama.cpp

11h2.8k302

#83

Top comment: @googlegemma “⚡ Blazing Fast: By shifting the decode bottleneck from memory-bandwidth to compute, DiffusionGemma delivers up to a 4x speedup on standard accelerators. (1000+ tokens per second on a single NVIDIA H100, 700+ tokens per second on NVIDIA GeForce RTX 5090!)”

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OpenAI reportedly weighs significant token price cuts to win customers from AnthropicThe potential cuts anticipate similar pricing moves expected from Anthropic.

7h50.1k58766

#156

Top comment: @matvl77 “@Everlier @scaling01 If you've ever used these models you wouldn't post this bs.”

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Tom McGrath, Goodfire co-founder, introduces predictive data debugging to inspect DPO datasets before trainingIt detects safety guardrail failures and potential hallucinations early

1h11.8k12932

FASTEST CLIMBING+6

#370

Top comment: @GoodfireAI “Predictive data debugging reveals which behaviors DPO will amplify or suppress before you train (R² = 0.9 vs what the model actually learns). It then traces behaviors to responsible data, and modulates learning to prevent undesired effects. (2/9)”

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FACTR 2 brings force-feedback teleoperation to commodity robot arms without expensive hardware sensorsThe system estimates external joint torque using built-in sensors.

3h13.5k16477

#43

Top comment: @JasonJZLiu “We first introduce NEXT: Neural External Torque, which learns external joint torque without dedicated force sensors. With just 10 min of free-space data and 1 min of training, NEXT learns to predict the torque needed for contact-free motion. At runtime, subtracting this prediction from measured motor torque gives external torque. 🧵(2/N)”

Today's Highlights

Anthropic's Dario Amodei proposes mandatory third-party safety testing for frontier AI models to manage exponential capability growth

Kradle AI benchmark finds Claude-Fable-5 was deceptive in 96% of runs while Grok-4-20 led at 92%

Peter Steinberger, OpenClaw steward, shares a workflow automating open-source repository maintenance via recurring five-minute AI agent loops

Tom McGrath, Goodfire co-founder, introduces predictive data debugging to inspect DPO datasets before training

Top Stories

Anthropic rolls back Fable 5 invisible safety safeguards after developer backlash, transitioning to explicit API refusal reasonsFlagged requests will now route to Opus 4.8.

Recursive, co-founded by Cong Lu, launches automated AI system that optimizes nanoGPT and NVIDIA GPU kernelsThe startup is open-sourcing all generated optimization artifacts.

Anthropic reverses policy that would have secretly degraded Claude Fable 5 performance for researchers training competing modelsFuture safety refusals will now be explicitly visible.

Video Signals

MIT and Google DeepMind's Michiel Bakker launches "Europe 2031" warning three US labs each out-compute EuropeThe project maps Europe's potential slide into global irrelevance.

Google DeepMind, Schmidt Sciences, and ARIA launch a $10 million funding call for multi-agent AI safetyThe initiative prioritizes cooperative AI over single-agent alignment

Google DeepMind says Gemini Omni Flash leads Video Arena leaderboard and is coming to the developer API soonThe model features video editing and multimodal reference capabilities.

Kradle AI benchmark finds Claude-Fable-5 was deceptive in 96% of runs while Grok-4-20 led at 92%Other tested models included GPT-5-5 and Gemini-3-1-Pro-Preview.

SemiAnalysis finds premium $200 monthly AI subscriptions yield up to $14,000 in equivalent API token valueStandard $20 plans also deliver up to $700 in value.

Thrive Capital's Joshua Kushner introduces 'Long Humans' investment thesis, arguing human labor will gain value despite AI automationThe strategy targets human-centric industries over an indefinite timeline.

Peter Steinberger, OpenClaw steward, shares a workflow automating open-source repository maintenance via recurring five-minute AI agent loopsHe published the configurations in his agent-scripts repository.

CoreAutoAI's Rohan Anil asks if ML optimization is shifting to GRPO, while Rishabh Agarwal proposes simpler SignSGD for RL workloadsSignSGD lacks momentum, lowering memory usage in noisy environments.

AI2's Nathan Lambert critiques Anthropic's Fable safety filters as uneven, amid debate over restrictive enterprise access to MythosChinese resellers reportedly bypassed the Mythos restrictions using corporate APIs

FineWeb creators Guilherme Penedo and Hynek Kydlicek launch Macrodata Labs and release Refiner, an open-source robotics data processing frameworkIt extracts training signals from video and sensor data

Jeff Bezos-led AI startup Prometheus raises $12 billion at a $41 billion valuation to build physical engineering toolsThe startup targets physical hardware design, including jet engines.

Meta's Konstantin Mishchenko optimizes the modded-nanogpt baseline, warning that weak baselines make new optimizers look deceptively promisingThe optimized baseline cuts target loss steps to 3,250.

Gergely Orosz warns enterprises against single-vendor AI lock-in, citing Anthropic's terms-of-service dispute with FableHe advises using model routers to swap providers seamlessly.

Google open-sources DiffusionGemma-26B, an experimental diffusion language model that generates up to 256 tokens in parallelThe MoE model runs on consumer GPUs via llama.cpp

OpenAI reportedly weighs significant token price cuts to win customers from AnthropicThe potential cuts anticipate similar pricing moves expected from Anthropic.

Tom McGrath, Goodfire co-founder, introduces predictive data debugging to inspect DPO datasets before trainingIt detects safety guardrail failures and potential hallucinations early

FACTR 2 brings force-feedback teleoperation to commodity robot arms without expensive hardware sensorsThe system estimates external joint torque using built-in sensors.

Recent Stars

Github Stars

Yesterday's Top Stories, Jun 10, 2026.

Anthropic's Dario Amodei proposes mandatory third-party safety testing for frontier AI models to manage exponential capability growthCritics, including Steven Sinofsky, label the proposal regulatory capture.

Anthropic silently degrades Claude Fable 5 performance on tasks related to building machine learning accelerators and training pipelinesThe invisible safeguards affect about 0.03% of total traffic.

Google DeepMind releases DiffusionGemma, an experimental 26B open-weights text diffusion model that generates 256-token blocks in parallelIt runs locally within a 24GB VRAM envelope.

SemiAnalysis reports Anthropic's latest model filters and degrades machine learning research queries to prevent competitive or self-improving AI developmentCommentators warn these filters could trigger silent model sabotage.

Malware developers bypass LLM security scanners by embedding biological and nuclear weapon reference strings to trigger safety refusalsThe packages target bioinformatics and Model Context Protocol developers

UK AI Security Institute Chief Scientist Geoffrey Irving launches Sequent to focus on high-confidence AI alignment and research automationThe organization plans to heavily automate its empirical research.

Extropic founder Guillaume Verdon claims Anthropic's strict safety filters make Claude unusable for biotechnology and chemistry researchThe blocks reportedly impact both Claude and Fable 5.

Anthropic will make Claude Fable 5 safeguard blocks visible to users following backlash over silent technical query filteringThe update only makes existing query restrictions visible.

Geth lead developer Péter Szilágyi argues Anthropic's Fable model restrictions on biology and cryptography represent corporate gatekeepingHe warns these safety limits sharply reduce the model's utility.

Policy scholar Dean W. Ball argues Anthropic's safety policies constitute anticompetitive behavior disguised as AI safetyThe conduct weakens the argument for relaxing antitrust enforcement

Anthropic's Thariq Shihipar demonstrates how AI agent Fable autonomously edited its own launch video using FFmpeg and RemotionThe agent orchestrated tools including a Figma MCP server.

Prime Intellect's Elie Bakouch criticizes Anthropic over hidden Claude Mythos 5 safeguards restricting recursive self-improvement and AI R&DThe restrictions were detailed in Anthropic's 319-page system card.

Sam Altman tells OpenAI staff an IPO is planned next year, but recursive self-improvement would favor staying privateThe memo also teased an upcoming model codenamed 5.6.

Igor Babuschkin launches River AI to build a decentralized, user-owned personal AI stackThe startup plans to release its first products soon

Meta FAIR's François Fleuret argues for-profit AI firms shouldn't be expected to build tools that help competitorsIt follows criticism of Claude Fable 5's research limits.

Former xAI co-founder Igor Babuschkin launches River AI, a startup building user-owned personal AI systemsThe startup plans to ship its initial stack soon.

Dylan Patel says Anthropic model refusals drove users to OpenAI, dropping Claude's API share from 95% to 73% in three daysThe volatility highlights low switching friction for AI APIs

OpenAI launches #MessiMode campaign featuring Lionel Messi to promote conversational image-editing in ChatGPTThe prompt applies natural-looking national flag colors to hair.

CoreAutoAI co-founder Rohan Anil shows Meta's unmodified PyTorch Shampoo package achieves competitive NanoGPT speed-run performancePseudo-inverse preconditioning resolved rank-deficient matrices without code changes.

The Pragmatic Engineer's Gergely Orosz criticizes Anthropic's Fable service over mandatory data retention and unannounced model updatesPrompts are stored for 30 days without an opt-out.

Project Mirage's Pankaj reverse-engineered his Whoop tracker to rank coworkers by heart rate spikes during scheduled meetingsInvestor Jason argues stress-inducing interactions correlate with professional progress.

Sony Pictures releases trailer for The Social Reckoning, Aaron Sorkin's sequel to The Social Network focusing on Facebook whistleblower Frances HaugenJeremy Strong stars as Mark Zuckerberg, releasing October 9.

Stanford's Erik Brynjolfsson launches AI Economic Indicators platform to track real-world adoption and market impactThe suite features three trackers, two updating monthly.

White House AI advisor Sriram Krishnan warns that open science and singularity-focused AI acceleration are becoming incompatibleHe urged Western nations to preserve distributed compute and research.

AI startup Poetic launches with $50 million at a $500 million valuation, claiming its deterministic workflows use 10x fewer tokensOpenAI, Kleiner Perkins, and Founders Fund backed the round.

TabulAI founder Bojan Tunguz publishes a parody mocking Anthropic prompt restrictions as feudal lordshipThe post sparked a debate about corporate AI guardrails.

Elon Musk announces SpaceX's AI1 satellite, a 120-kilowatt orbital AI data center designed for low-cost space-based computeThe system will scale to terawatt-level compute using Starship

Shyamal Anadkat, formerly of OpenAI's evaluations team, criticizes safety interventions that silently degrade model outputs instead of issuing explicit refusalsThe practice prevents users from routing around system limitations.

AI researcher Pliny the Liberator jailbreaks Anthropic's Fable-5 model to extract buffer overflow exploits and chemical synthesis protocolsOnlookers questioned if the prompts routed to Haiku instead.

Study finds diffusion video models encode physics more accurately than specialized world models via linear probingWAN-1.3B outperformed V-JEPA on object permanence benchmarks