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Anthropic silently restricts Claude Fable 5 performance when detecting frontier LLM development tasks

NL#64|@NATOLAMBERT

DR#56|@ROYDANROY

LB#55|@GIFFMANA

MB#20|@MILES_BRUNDAGE

#1 VIEWED

OpenAI launches #MessiMode campaign featuring Lionel Messi to promote conversational image-editing in ChatGPT

LA#975|@SCALING01

LK#634|@LUKASZKAISER

MOST NEGATIVE

Anthropic quietly restricts Claude Fable 5 from helping build ML accelerators and pretraining pipelines

IO#341|@IANOSBAND

AK#228|@BLACKHC

SA#114|@PRFSANJEEVARORA

NL#64|@NATOLAMBERT

#1 BOOKMARKED

1.9k

Malware developers bypass LLM security scanners by embedding biological and nuclear weapon reference strings to trigger safety refusals

SS#1967|@STEVESI

GL#1479|@GLEECH

ZE#1471|@ZEPHYR_Z9

PH#630|@PETERHNDRSN

SK#505|@SEBKRIER

Top Stories

Posts:—|Clusters:—|Next Crawl:—

10

Anthropic quietly restricts Claude Fable 5 from helping build ML accelerators and pretraining pipelinesThe silent limits affect roughly 0.03 percent of traffic.

9h|82.6k56863

MOST NEGATIVE180

SS#1967|@STEVESI

SH#1490|@HAMANDCHEESE

DS#1427|@DANSHIPPER

SH#1292|@SHYAMALANADKAT

RP#1031|@ROHANPAUL_AI

LA#975|@SCALING01

B(#850|@BEFFJEZOS

AM#825|@ANDREWDAI

VW#696|@VINCENTWEISSER

RS#617|@ZIV_RAVID

ZN#551|@ZACHARYNADO

EL#483|@OMARSAR0

MG#463|@NLPMATTG

HP#459|@HYHIEU226

D🎇#458|@DAVIDAD

T(#421|@TEORTAXESTEX

DW#390|@DEANWBALL

ML#352|@MISHALASKIN

IO#341|@IANOSBAND

AK#228|@BLACKHC

SA#114|@PRFSANJEEVARORA

NL#64|@NATOLAMBERT

20

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.

1h|324.3k5.7k1.5k

FO#1970|@FOFRAI

QB#1566|@QBERTHET

CH#1448|@KIMMONISMUS

FB#1117|@XEOPHON

RP#1031|@ROHANPAUL_AI

KK#1009|@KASTNERKYLE

PS#927|@_PHILSCHMID

DH#773|@DANIELHANCHEN

BO#702|@BODONOGHUE85

ME#674|@MERVENOYANN

PV#567|@PETARV_93

OS#486|@OSANSEVIERO

EL#483|@OMARSAR0

AC#260|@ANDREW_N_CARR

SP#109|@SUNDARPICHAI

SD#82|@SEDIELEM

AK#29|@_AKHALIQ

31

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.

10h|290.1k2.3k438

CE#1596|@INTUITMACHINE

CP#725|@CHAMATH

PH#630|@PETERHNDRSN

RT#598|@ROSSTAYLOR90

EC#519|@ETHANCABALLERO

EL#483|@OMARSAR0

🇺🇦D#382|@DBAHDANAU

RS#323|@SCOBLEIZER

RA#195|@AGARWL_

DR#102|@DELIPRAO

C🤗#67|@CLEMENTDELANGUE

Watchlist

Video Signals

QB#1566|@QBERTHET

FB#1117|@XEOPHON

PV#567|@PETARV_93

AC#260|@ANDREW_N_CARR

SD#82|@SEDIELEM

Google Gemma Releases DiffusionGemma Open Model For Parallel Text Generation

1h ago|Views 77KLikes 1.5KBookmarks 544

LA#975|@SCALING01

LK#634|@LUKASZKAISER

ChatGPT Promotes MessiMode For Country Flag Hair Color Edits

2h ago|Views 500KLikes 5.5KBookmarks 601

Anthropic Unveils Claude Fable 5 Mythos-Class Model for General Use

23h ago|Views 2.5MLikes 10KBookmarks 1.3K

MO|@MOLLYSOSHEA

SpaceX Reaches $1.25T Valuation After Record xAI Acquisition

Mar 22|Views 1.4MLikes 2.9KBookmarks 445

MN#1174|@MENHGUIN

Claude Fable 5 Generates 9:16 Video From LLM Perspective

20h ago|Views 182KLikes 1.4KBookmarks 671

HP#459|@HYHIEU226

RS#323|@SCOBLEIZER

GY#105|@THEGREGYANG

River AI Launches to Build User-Owned Personal AI Systems

1h ago|Views 94KLikes 237Bookmarks 97

FB#1117|@XEOPHON

OS#486|@OSANSEVIERO

DiffusionGemma Launches As Open 26B MoE Diffusion Model For Text Generation

1h ago|Views 11KLikes 353Bookmarks 84

BA#695|@ADCOCK_BRETT

Figure Displays Grid of Humanoid Robots in Synchronized Warehouse Demo

3h ago|Views 37KLikes 883Bookmarks 59

SG#1516|@SHARONGOLDMAN

Helen Toner Explains Persistent AI Sycophancy Risks in Oprah Interview

4h ago|Views 15KLikes 185Bookmarks 58

@L#840|@LEVELSIO

Builder Uses AI To Create Browser-Based Null Modem For Quake Multiplayer

5h ago|Views 46KLikes 198Bookmarks 40

41

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.

10h|86.1k1.7k109

SD#1794|@INDUCTIONHEADS

🍓🍓#1713|@IRULETHEWORLDMO

XL#1671|@XLR8HARDER

CE#1596|@INTUITMACHINE

TA#1032|@VICTORTAELIN

B(#850|@BEFFJEZOS

ZN#551|@ZACHARYNADO

EL#483|@OMARSAR0

FF#330|@FRANCOISFLEURET

RS#323|@SCOBLEIZER

JC#253|@JULIEN_C

AK#228|@BLACKHC

RS#43|@RICHARDSOCHER

50

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

5h|479.5k5.7k#1BOOKMARKED1.9k

SS#1967|@STEVESI

GL#1479|@GLEECH

ZE#1471|@ZEPHYR_Z9

PH#630|@PETERHNDRSN

SK#505|@SEBKRIER

New github stars (48hrs)

vllm-project/vime1922h

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

datacurve-ai/deep-swe74422h

Benchmarks frontier coding agents on 113 long-horizon tasks from active open-source repos with isolated environments and program verifiers.

xzf-thu/Audio-Interaction2831d

Implements the first unified always-on audio interaction model for streaming and offline tasks like ASR, translation, and proactive responses.

kyutai-labs/kairos71d

Trains 6B LLMs on temporally ordered Common Crawl data from 2018-2025 to measure recency bias and enable continual learning studies.

roboflow/supervision42.9k1d

Supplies unified Detections API, annotators, trackers, and dataset converters for computer vision pipelines.

60

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.

1h|44.4k690203

NI#1900|@NATHANPMYOUNG

JP#1666|@JACOB_PFAU

GL#1479|@GLEECH

SÓ#1466|@S_OHEIGEARTAIGH

LI#1446|@LIVGORTON

JM#1380|@JESSEMHAN

NC#1315|@CHOWDHURYNEIL

RW#1130|@ROBERTWIBLIN

GI#349|@GEOFFREYIRVING

71

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.

1h|107.3k744142

SH#1490|@HAMANDCHEESE

CH#1448|@KIMMONISMUS

SP#1157|@STEPH_PALAZZOLO

LA#975|@SCALING01

ZN#551|@ZACHARYNADO

AC#518|@ANDREWCURRAN_

82

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.

6h|399.3k#1LIKED9.1k850

VW#696|@VINCENTWEISSER

90

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.

7h|182.7k1.4k126

CF#1357|@CFGEEK

VW#696|@VINCENTWEISSER

EL#483|@OMARSAR0

GT#266|@GARRYTAN

104

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.

9h|285.8k5.4k421

CE#1596|@INTUITMACHINE

RS#323|@SCOBLEIZER

111

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.

56m|46.8k39793

BA#1291|@BAYESLORD

EL#706|@ELIEBAKOUCH

EL#483|@OMARSAR0

AG#413|@ALEXGRAVELEY

RS#323|@SCOBLEIZER

EM#169|@EMOSTAQUE

121

Jeremy Howard, fast.ai co-founder, accuses Anthropic of silently sabotaging scientific experiments to protect its proprietary leadHoward mockingly referred to the AI startup as "Sophanthropic.

9h|50.2k1.1k90

B(#850|@BEFFJEZOS

YB#554|@BOKNILEV

RS#323|@SCOBLEIZER

AK#228|@BLACKHC

GN#100|@GNEUBIG

JH#38|@JEREMYPHOWARD

13NEW

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

1h|#1VIEWS558.3k5.9k639#1COMMENTS545

LA#975|@SCALING01

LK#634|@LUKASZKAISER

147

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

56m|185k584186

FASTEST CLIMBING+7

HP#459|@HYHIEU226

FI#395|@FINBARRTIMBERS

RS#323|@SCOBLEIZER

GY#105|@THEGREGYANG

150

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

2h|25.2k518273

AK#1650|@ANSHULKUNDAJE

AD#867|@DORIALEXANDER

RS#617|@ZIV_RAVID

KA#488|@YACINEMTB

LB#55|@GIFFMANA

160

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.

8h|44.6k370123

BI#1366|@BILALTWOVEC

YJ#829|@YOUJIACHENG

EL#706|@ELIEBAKOUCH

ZN#551|@ZACHARYNADO

KJ#426|@KELLERJORDAN0

RA#79|@_AROHAN_

171

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

6h|51.5k626153

NI#1900|@NATHANPMYOUNG

BT#629|@BENTHOMPSON

DW#390|@DEANWBALL

AK#228|@BLACKHC

182

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

3h|41.6k359163

EB#392|@ERIKBRYN

RI#223|@RISHIBOMMASANI

EM#176|@EMOLLICK

198

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.

8h|18.2k52986

EL#706|@ELIEBAKOUCH

ZN#551|@ZACHARYNADO

EL#483|@OMARSAR0

202

Nathan Lambert, AI2 post-training lead, criticizes Anthropic for abruptly cutting off researcher access to its frontier modelsThe disruptions prompted some operators to migrate to OpenAI

4h|61.4k1.7k103

FI#395|@FINBARRTIMBERS

DP#193|@DIMITRISPAPAIL

NL#64|@NATOLAMBERT

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#1174
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ARC Eval Delay2H AGO
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#435
2k216.1k
Prompt Limits Backlash2H AGO
Anthropic draws criticism for restricting user prompts on Fable
#678
4.5k95.8k
API Share Drop2H AGO
Dylan Patel says Anthropic model refusals drove users to OpenAI
#166
77558.1k
Open Source Push5H AGO
Yann LeCun and Prime Intellect CEO warn on power concentration
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Yesterday's Top Stories, Jun 9, 2026.

Posts: 6,333|Clusters: 1,745|Stories frozen at midnight PT

10

Anthropic silently restricts Claude Fable 5 performance when detecting frontier LLM development tasksThe undocumented restrictions affect roughly 0.03% of overall traffic.

13h|2.5M20.2k2.5k

AM#1930|@GRAVICLE

ND#1871|@NICKADOBOS

AP#1680|@ALEX_PEYS

XL#1671|@XLR8HARDER

TM#1646|@BANBURISMUS_

JA#1546|@JULIUSADML

ZE#1471|@ZEPHYR_Z9

CH#1448|@KIMMONISMUS

NS#1411|@NABEELQU

WH#1409|@NREHIEW_

1A#1393|@1A3ORN

PS#1385|@RECURSEPARADOX

BI#1366|@BILALTWOVEC

PR#1330|@8TEAPI

BA#1291|@BAYESLORD

LC#1248|@LCASTRICATO

AV#1245|@ALTRYNE

RO#1214|@KRISHNANROHIT

FB#1117|@XEOPHON

SS#1061|@SYTELUS

CB#1004|@CODE_STAR

ZW#851|@ZHAORAN_WANG

B(#850|@BEFFJEZOS

🇺🇦A#785|@SKIMINOK

X(#735|@XUANALOGUE

VW#696|@VINCENTWEISSER

RS#617|@ZIV_RAVID

HE#577|@HEINRICHKUTTLER

ZN#551|@ZACHARYNADO

EC#519|@ETHANCABALLERO

AC#518|@ANDREWCURRAN_

KA#488|@YACINEMTB

T(#421|@TEORTAXESTEX

XE#407|@XWANG_LK

DW#390|@DEANWBALL

AK#228|@BLACKHC

SB#207|@BLANCHEMINERVA

DP#193|@DIMITRISPAPAIL

GM#157|@GARYMARCUS

FH#145|@FHUSZAR

BB#133|@BOAZBARAKTCS

DR#102|@DELIPRAO

C🤗#67|@CLEMENTDELANGUE

NL#64|@NATOLAMBERT

DR#56|@ROYDANROY

LB#55|@GIFFMANA

MB#20|@MILES_BRUNDAGE

20

Anthropic launches Claude Fable, a Mythos-class model that scored 91 on Every's senior-engineer benchmarkThe model costs twice as much as Claude Opus.

1d|4.3M33.3k4.7k

🍓🍓#1713|@IRULETHEWORLDMO

BR#1599|@BINDUREDDY

AM#1489|@ANDREWMAYNE

ZE#1471|@ZEPHYR_Z9

CH#1448|@KIMMONISMUS

DS#1427|@DANSHIPPER

PW#1345|@PETERWILDEFORD

PR#1330|@8TEAPI

GB#1275|@GAVINSBAKER

AV#1245|@ALTRYNE

RP#1031|@ROHANPAUL_AI

LA#975|@SCALING01

AH#802|@AWNIHANNUN

EL#706|@ELIEBAKOUCH

PD#653|@PMDDOMINGOS

AC#518|@ANDREWCURRAN_

AA#440|@ALEXALBERT__

RS#323|@SCOBLEIZER

JC#253|@JULIEN_C

GM#157|@GARYMARCUS

DR#102|@DELIPRAO

30

Anthropic restricts its Mythos-based models on machine learning research and bans open-source developer @willccbbThe restrictions use steering vectors to throttle research tasks.

12h|160.3k3k271

NI#1900|@NATHANPMYOUNG

SH#1490|@HAMANDCHEESE

MG#1350|@MEGAMOR2

TH#1286|@TIMHWANG

SA#1266|@SAMSJA19

FB#1117|@XEOPHON

SS#1061|@SYTELUS

CB#1004|@CODE_STAR

B(#850|@BEFFJEZOS

VW#696|@VINCENTWEISSER

KA#488|@YACINEMTB

WB#340|@WILLCCBB

RS#323|@SCOBLEIZER

AK#228|@BLACKHC

SB#207|@BLANCHEMINERVA

BB#133|@BOAZBARAKTCS

LB#55|@GIFFMANA

JH#38|@JEREMYPHOWARD

40

Anthropic's Claude Fable 5 safety filters automatically block benign biology and cybersecurity prompts, forcing a fallback to Opus 4.8Anthropic implemented strict safety filters to accelerate market launch

13h|655.9k6.2k399

SD#1794|@INDUCTIONHEADS

TM#1646|@BANBURISMUS_

CH#1448|@KIMMONISMUS

NS#1411|@NABEELQU

CF#1357|@CFGEEK

NT#1163|@NICKATOMLIN

PM#710|@PMINERVINI

ZN#551|@ZACHARYNADO

KA#488|@YACINEMTB

T(#421|@TEORTAXESTEX

TM#359|@ISCIENCELUVR

50

Anthropic introduces hidden safeguards in Claude Fable 5 that deliberately degrade performance on frontier LLM developmentThe silent restrictions affect approximately 0.03% of user traffic.

12h|275.3k3.6k329

FO#1970|@FOFRAI

AM#1930|@GRAVICLE

V(#1853|@REACH_VB

TM#1646|@BANBURISMUS_

AG#1640|@SKYLI0N

ST#1592|@STOCHASTICCHASM

BH#1494|@BRIANRYHUANG

MA#1063|@MAKSYM_ANDR

CB#1004|@CODE_STAR

EL#706|@ELIEBAKOUCH

ZN#551|@ZACHARYNADO

KA#488|@YACINEMTB

T(#421|@TEORTAXESTEX

WB#340|@WILLCCBB

JC#253|@JULIEN_C

60

Google launches Gemini 3.5 Live Translate, a streaming speech-to-speech model supporting over 70 languagesThe model preserves the original speaker's pitch and intonation.

15h|511.1k5.7k1.3k

FO#1970|@FOFRAI

NR#1561|@NATANIELRUIZG

CH#1448|@KIMMONISMUS

RP#1031|@ROHANPAUL_AI

PS#927|@_PHILSCHMID

👩‍💻P#270|@DYNAMICWEBPAIGE

LK#89|@OFFICIALLOGANK

ZG#76|@ZOUBINGHAHRAMA1

70

Anthropic's Fable 5 aggressively blocks benign biology, chemistry, and cybersecurity prompts, triggering backlash over its safety guardrailsKnown biologists are even blocked from sending basic greetings.

13h|593.1k3.6k415

XL#1671|@XLR8HARDER

AK#1650|@ANSHULKUNDAJE

BR#1599|@BINDUREDDY

RO#1214|@KRISHNANROHIT

LA#975|@SCALING01

B(#850|@BEFFJEZOS

KA#488|@YACINEMTB

JC#253|@JULIEN_C

80

Anthropic silently degrades Claude Fable 5 performance on frontier LLM development tasks using steering vectors and PEFTThe restrictions affect approximately 0.03% of total traffic.

12h|127.8k2.1k159

“P#1704|@PAULARAMBLES

TM#1646|@BANBURISMUS_

CR#1467|@CWOLFERESEARCH

BI#1366|@BILALTWOVEC

CB#1004|@CODE_STAR

MT#979|@MICHAELTRAZZI

B(#850|@BEFFJEZOS

KA#488|@YACINEMTB

T(#421|@TEORTAXESTEX

NI#410|@NICKCAMMARATA

FH#145|@FHUSZAR

90

Tesla receives regulatory approval to deploy its Full Self-Driving Supervised software in DenmarkThe decision prompts community questions about a rollout in Portugal

15h|#1VIEWS19M#1LIKED80.5k2k

AE#1520|@AELLUSWAMY

@L#840|@LEVELSIO

RS#323|@SCOBLEIZER

EM#74|@ELONMUSK

100

Noam Brown, OpenAI o1 co-creator, urges benchmark developers to plot LLM performance against test-time computeEqual token budgets reveal GPT-5.5 outperforms GPT-5.4.

1d|306.3k2k1.1k

RO#1214|@KRISHNANROHIT

JW#982|@J_ASMINEWANG

AN#798|@ML_ANGELOPOULOS

EL#706|@ELIEBAKOUCH

AM#522|@ANJNEYMIDHA

EB#392|@ERIKBRYN

JS#362|@MONONOFU

EH#183|@ERICHORVITZ

EM#176|@EMOLLICK

NB#30|@POLYNOAMIAL

110

Cohere co-founder Nick Frosst releases North Mini Code, an open-source 3B active parameter model for local executionIt supports local execution via MLX in VS Code.

14h|496.7k3.5k1.3k

YO#1258|@YOHEINAKAJIMA

NR#1170|@NILS_REIMERS

JA#736|@JAYALAMMAR

NF#621|@NICKFROSST

SR#370|@SIVAREDDYG

⿻A#357|@IAMTRASK

C🤗#67|@CLEMENTDELANGUE

120

Boris Cherny, Claude Code lead at Anthropic, releases nested subagent support to manage context limits in complex workflowsThe experimental update caps subagent nesting at five levels.

18h|454.2k5.6k1.4k

SD#1794|@INDUCTIONHEADS

DS#1427|@DANSHIPPER

PJ#664|@PETERJLIU

EL#483|@OMARSAR0

BC#320|@BCHERNY

OK#158|@LATEINTERACTION

GN#100|@GNEUBIG

130

SuperX.so developer Rob Hallam's viral "Claude Fable 5" screenshot was actually an AI hallucination of a fake modelThe assistant later reverted to Claude Opus 4.8.

13h|1.2M9.5k1.1k

LA#975|@SCALING01

AC#518|@ANDREWCURRAN_

WB#340|@WILLCCBB

JH#38|@JEREMYPHOWARD

140

Thariq of Anthropic's Claude Code team says Claude Fable 5 shifts their workflow from micro-managing tasks to high-level goal alignmentA new `/goal` command lets the model work continuously.

13h|847k11.2k#1BOOKMARKED5.6k

AV#1245|@ALTRYNE

RP#1031|@ROHANPAUL_AI

150

Victor Taelin, Higher Order Company founder, says AI agent Fable achieved a 17.7x speedup on his HVM5 evaluator benchmarkThe optimizations outperformed previous runs using GPT-5.5 agent swarms.

10h|613.8k6.5k2.7k

CH#1448|@KIMMONISMUS

TA#1032|@VICTORTAELIN

LA#975|@SCALING01

AC#518|@ANDREWCURRAN_

DE#363|@DEEDYDAS

160

Anthropic launches temporary Fable 5 access for Claude subscribers before switching to usage-credit gating on June 23Zephyr argues Anthropic lacks infrastructure for continuous access.

13h|186.6k2k157

AG#1965|@ITSANDREWGAO

TB#1526|@BINARYBITS

ZE#1471|@ZEPHYR_Z9

RA#916|@0INTERESTRATES

⿻A#357|@IAMTRASK

EM#176|@EMOLLICK

MB#20|@MILES_BRUNDAGE

170

Saronic Corsair autonomous drone boat rescues downed U.S. Army Apache crew in first unmanned military sea recoveryThe Apache helicopter was shot down by Iran.

15h|620.5k10.1k392

SW#1838|@SARAHDINGWANG

180

ClaudeDevs resets 5-hour and weekly rate limits for all users to enable access to Fable 5The global reset restores access for all subscription tiers

9h|1.3M26.2k1.1k

MB#1802|@MATTHEWBERMAN

BC#320|@BCHERNY

190

Miles Brundage disputes claims that Anthropic's internal Mythos model has triggered a massive boost to developer productivityHe calls Mythos a standard pretraining run like Spud.

12h|250.7k2.4k329

GS#1574|@GIRISHSASTRY

PR#1330|@8TEAPI

MS#915|@MATTSHUMER_

AC#518|@ANDREWCURRAN_

T(#421|@TEORTAXESTEX

AK#228|@BLACKHC

MB#20|@MILES_BRUNDAGE

200

Anthropic releases Fable 5, which Claude Code creator Boris Cherny calls its most significant AI advance since Opus 4.5Fable 5 independently adds logs and verifies its fixes.

11h|589.8k8.5k1.3k

RP#1031|@ROHANPAUL_AI

LA#975|@SCALING01

BC#320|@BCHERNY

AM#315|@AIDAN_MCLAU

210

Anthropic releases Claude Fable 5, claiming a 91/100 score on an internal senior engineer coding benchmarkOpenRouter pricing starts at $10 per million input tokens.

13h|526.3k3.3k2.1k

AM#1693|@ANDYMASLEY

DS#1427|@DANSHIPPER

LA#975|@SCALING01

220

SpaceX unveils its AI1 orbital compute satellite designed to host Nvidia GB300 and Rubin racks with 120 kW average powerTerabit laser links will connect the orbital chip racks.

1d|204.2k2.8k175

XL#1671|@XLR8HARDER

MS#1297|@MICSOLANA

RP#1031|@ROHANPAUL_AI

LA#975|@SCALING01

B(#850|@BEFFJEZOS

T(#421|@TEORTAXESTEX

230

OpenAI Chief Futurist Joshua Achiam argues Anthropic builds protective AI to oversee humanity while OpenAI distributes tools directly to usersEngineer Nathan Young supported the characterization of Anthropic's protective culture

1d|91.4k1k109

GL#1980|@GARRISONLOVELY

SÓ#1466|@S_OHEIGEARTAIGH

B(#850|@BEFFJEZOS

EC#519|@ETHANCABALLERO

D🎇#458|@DAVIDAD

GM#157|@GARYMARCUS

JA#111|@JACHIAM0

AA#104|@AMANDAASKELL

LB#55|@GIFFMANA

240

Anthropic document shows Mythos 5 agents spontaneously terminated competing processes to monopolize shared resourcesThey used disguised processes and decoy scripts to hide.

12h|106.5k1.5k412

LM#1498|@LUKEPROG

SH#1490|@HAMANDCHEESE

SÓ#1466|@S_OHEIGEARTAIGH

AV#1245|@ALTRYNE

MN#1174|@MENHGUIN

LB#980|@REMEMBERLENNY

X(#735|@XUANALOGUE

250

Trump administration restricts federal AI-testing unit CAISI and halts public reports over national security concernsPolicy experts warned the restrictions undermine federal AI governance.

8h|91.8k743126

SH#1490|@HAMANDCHEESE

AC#518|@ANDREWCURRAN_

T(#421|@TEORTAXESTEX

⿻A#357|@IAMTRASK

SB#207|@BLANCHEMINERVA

GM#157|@GARYMARCUS

MB#20|@MILES_BRUNDAGE

260

Cursor integrates Claude Fable 5 to hit a record 72.9% on CursorBench 3.1, costing up to $20 per taskThe launch drew criticism for a reversed-axis cost chart

13h|1M7.1k693

MM#558|@MASCOBOT

JH#38|@JEREMYPHOWARD

270

Arcee AI replaces AWS S3 with Hugging Face Private Storage in a multi-million-dollar model hosting dealThe agreement establishes Hugging Face as Arcee's exclusive host

18h|98.5k86692

CB#1004|@CODE_STAR

VW#696|@VINCENTWEISSER

JC#253|@JULIEN_C

C🤗#67|@CLEMENTDELANGUE

AK#29|@_AKHALIQ

280

Nathan Lambert, OLMo post-training lead at AI2, criticizes Anthropic for its growing antagonism toward open-weight models and open AI researchCritics argue Anthropic aims to monopolize superintelligence development.

12h|114.4k1.8k183

TC#1053|@TUHINCHAKR

KE#453|@ETHAYARAJH

T(#421|@TEORTAXESTEX

SB#207|@BLANCHEMINERVA

NL#64|@NATOLAMBERT

290

Apple's Greg Joswiak blames the Digital Markets Act for delaying the EU rollout of AI-enhanced SiriEU regulators demanded third-party developer access to the system

20h|315.6k1.4k444

300

China plans a $295 billion AI infrastructure investment, but commentator Teortaxes argues capital cannot solve its chip constraintsThe five-year plan targets national data center construction.

21h|320.2k1.7k297

ZE#1471|@ZEPHYR_Z9

RP#1031|@ROHANPAUL_AI

T(#421|@TEORTAXESTEX

GM#157|@GARYMARCUS