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Hacker News. Daily summary. Top 20 stories.

2026-09-23

Claude Opus 5.5 (anthropic.com)

Anthropic launches Claude Opus 5.5, claiming frontier performance at 40% lower cost than Opus 5.

Skepticism about the outage timing mixed with relief over improved writing style.

1646 pts · 1004 comments

GPT-6 Sol and Luna (openai.com)

OpenAI releases GPT-6 Sol and Luna, halving prices versus GPT-5.6 while improving performance.

Price war continues: OpenAI slashes GPT-6 costs 50%, with Luna seen as enabling near-unlimited agentic use.

1635 pts · 787 comments

I said no and Apple said yes (dbushell.com)

Apple removed the setting to disable Apple Intelligence in macOS 27.

The thread centers on Apple's dark patterns, calling it a 'ratchet of consent' that removes the option to refuse.

838 pts · 679 comments

Pentagon says overreliance on AI contributed to missile strike on Iran school (bloomberg.com)

Flawed intelligence, AI reliance, and staffing cuts led to a US strike on an Iranian school.

Blame is placed on systematic failures and staffing cuts, not just AI.

757 pts · 380 comments

Apple has added persistent 'ads' to iOS, and it's driving users crazy (TechRadar)

Apple's persistent App Store ads frustrate users and small developers.

Developers and users alike condemn App Store search ads as abusive, harming small apps.

750 pts · 552 comments

'We hacked the FBI:' Hackers say they have data on all FBI employees (404 Media)

Hackers claim to have breached the FBI, stealing data on all employees and applicants.

Alarm and skepticism over the breach, with criticism of Oracle reliance and staffing cuts.

699 pts · 506 comments

OpenAI GPT–6 Astra breaks Enigma message that has resisted solution since 2005 (cryptocellar.org)

OpenAI's GPT-6 Astra autonomously breaks a WWII Enigma message unsolved since 2005.

Split between dismissals as brute-force PR and praise for solving a decades-old puzzle.

696 pts · 410 comments

Microsoft killed FoxPro in 2007. Anyway, here's FoxPro revived (foxscript.org)

FoxDev Studio revives Visual FoxPro 9 as a 64-bit runtime with no rewrite needed.

Nostalgia and war stories mix with skepticism about the project's AI-generated polish and remote-access challenges.

396 pts · 216 comments

Can gzip be a language model? (nathan.rs)

Using gzip's DEFLATE algorithm and beam search can generate text by finding the most compressible continuations.

Naive text copying from the context beats beam search at minimizing compressed length, questioning the approach's generative utility.

395 pts · 154 comments

AI Has No Wisdom and Neither Will You (Alexandru Nedelcu)

Reliance on AI for coding prevents developers from reaching mastery.

Two camps: AI code rot equals human rot, or humans have a higher quality ceiling.

381 pts · 533 comments

Jev in 25 Lines of Python (NobodyWho)

A parody post implements a rough approximation of the Jev classification model in 25 lines of Python using a small open-source GGUF model.

Commenters are split: some see the parody as fair criticism, others argue it dismisses real engineering work in calibration and data.

373 pts · 125 comments

I asked Meta’s Muse for its filesystem and it sent me 6.8GB (Mouse)

A user tricked Meta's Muse AI into exporting its entire Linux filesystem, including SSH keys.

Strong consensus that this is not a vulnerability, just expected sandbox access.

319 pts · 153 comments

Claude Opus 5.5 Intelligence, Performance and Price Analysis (Max) (artificialanalysis.ai)

Claude Opus 5.5 Max offers same intelligence as Opus 5 at half the cost per task.

Cost halving is praised, but Max reasoning exhausts token budget on simple tasks.

314 pts · 99 comments

OpenAI is well positioned to fast-follow Jev (arcturus-labs.com)

OpenAI can likely replicate Jev's classification model using its existing architecture and data.

Skepticism dominates: Jev's technical novelty is doubted, with claims it is easily replicated.

302 pts · 213 comments

There's a high chance of devices being sold with GrapheneOS preinstalled in 2027 (GrapheneOS Mastodon)

GrapheneOS and Motorola partner to bring the OS to flagship devices starting in 2027.

Flagship pricing debated; banking app compatibility mostly works on GrapheneOS.

291 pts · 131 comments

SAML: A fractal of bad design (The Trail of Bits Blog)

SAML is an overly complex, flawed protocol that should be retired in favor of OIDC.

Enterprise users defend SAML as a practical necessity, while others argue vendors should push for OIDC adoption.

289 pts · 152 comments

Claude Opus 5.5 (anthropic.com)

Anthropic releases Claude Opus 5.5, 40% cheaper than Opus 5 with improved performance.

Dominant sentiment: Opus 5 was a disappointing release; hope that 5.5 redeems the $20 tier.

273 pts · 2 comments

What California is learning from solar panels built over irrigation canals (kqed.org)

Solar panels over California's irrigation canals cut evaporation and speed clean energy permitting.

Skepticism over cost-effectiveness of canal-mounted panels versus field arrays with separate shade.

269 pts · 505 comments

AMD's random number generator can't generate a 0? (board.flatassembler.net)

A developer discovers AMD's RDRAND16 instruction can't generate a zero on Zen 2 CPUs.

Bug confirmed on Zen 2, likely a microcode overcorrection; zeros appear if using 32-bit RDRAND.

267 pts · 208 comments

Grammarly will send unhinged messages to all your users if you try to cancel (reddit.com)

Grammarly sends emails and app notifications to users when an admin cancels a business subscription.

Two camps: those seeing standard practice vs. those condemning manipulative pressure tactics to reduce churn.

261 pts · 74 comments