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Claude Opus 5

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Google's Gemini 4 Carbon edges Claude Opus 5.5 on new intelligence benchmark

Google has launched Gemini 4 Carbon, which Artificial Analysis now ranks as the top AI model on its Intelligence Index V5 suite, narrowly surpassing Anthropic's Claude Opus 5.5 by one point and besting OpenAI's GPT-6 Astra and Meta's Muse Wonder Full. The model also leads a separate Artificial Analysis test measuring hallucination rates and factual recall, though its score of 54 out of a possible 100 shows even the top model remains far from fully reliable. Google is initially rolling the model out to cyber defenders via its Fairwind program, with broader access to follow later.

Developer uses Claude AI to clone Adobe apps as free Artcraft suite

Developer Brandon Thomas built Artcraft, a set of free, open-source clones of Adobe Creative Cloud apps including a Photoshop substitute called Photocraft, using Claude Opus 5.5 to reverse-engineer the software in Rust. Thomas says the move was prompted by frustration with Adobe's subscription cancellation fees, and the apps mimic Adobe's interfaces closely enough to require little relearning. Testing found Photocraft handles basic tasks like resizing and masking well but suffers from bugs, instability, and an inability to open native PSD files.

Google's Gemini 4 Carbon takes #1 spot on Artificial Analysis Intelligence Index v5

Artificial Analysis reports that Google's new Gemini 4 Carbon model has topped its Intelligence Index v5 with a score of 59, ranking first in 4 of 9 component evaluations including HLE-Diamond and AA-Omniscience. The model also placed second on the firm's Coding Agent Index, trailing only Anthropic's Claude Opus 5.5, and showed sizable gains in agentic knowledge-work benchmarks over its predecessor, Gemini 4 Argon. The model is currently in limited rollout with a 50% launch discount and not yet publicly available.

OpenAI and Anthropic repeatedly slash LLM API prices through mid-2026

Between June and September 2026, OpenAI and Anthropic each cut prices on multiple models: OpenAI dropped GPT-5.6 Luna pricing by 80% and GPT-5.6 Sol by about 20% for three months, while Anthropic made its temporary Claude Sonnet 5 launch pricing permanent and cut cache-read costs by 75% on the newly released Fable 5.1. The moves followed mixed reception to some new releases, including Claude Sonnet 5 and Opus 5, even as benchmark claims for some models reportedly exceeded larger competitors.

Moonshot AI launches Kimi K3.1 Pro with 1-million-token context window

Moonshot AI released Kimi K3.1 Pro, an open-weight 3T-class model built on Kimi K3 with expanded post-training compute, offering a 1-million-token context window and gains in coding, 3D creation, financial research and agentic tasks. A faster variant, K3.1 Pro Highspeed, runs 2-3 times quicker and both are live now on Kimi.ai, Kimi Work, Kimi Code and the Kimi API, with full model weights due by November 4.

DeepSeek updates V4.1 Flash model to revision 1017, cuts memory use sharply

DeepSeek released a point update to its open-weight V4.1 Flash model, a 552B-parameter Mixture-of-Experts system with 16B active parameters and a 1-million-token context window that handles both text and images. The company says the new revision needs only a quarter of the HBM and an eighth of the SSD storage for its KV cache compared with the prior version, using 890 bytes per token entry, and its internal benchmarks place the model between GPT-5.6 Sol and Claude Opus 5, beating the latter on some task tests.

Anthropic launches Claude Duet, an agent app for business task automation

Anthropic introduced Claude Duet, an AI agent app built on its Claude Opus 5.5 model targeting professionals and small businesses rather than personal errands. The app can generate daily briefings, build dashboards, suggest actions from user data, and complete background tasks via its own virtual machine before seeking approval. It connects to over 6,000 plugins in the Claude Marketplace and can make purchases through Stripe Link or Shopify Shop Pay, though it won't trade securities or transfer money between accounts.

Anthropic launches Claude Duet, an AI agent for professionals and small businesses

Anthropic introduced Claude Duet, a new AI agent built on Claude Opus 5.5, launching as a research preview on iOS, Android, and the web. The agent monitors connected apps, sends daily briefings, flags urgent items, and can handle tasks ranging from scheduling to building dashboards and prototypes, pausing for user approval before sensitive actions like payments. Access currently requires joining a waitlist and holding a Pro or Max Claude subscription in the US.

Steam users push Valve for filter to hide AI-made games from Next Fest

During the current Steam Next Fest, players have noticed a sharp rise in demos featuring AI-generated art or code, prompting complaints on Reddit. One user, ScalesGhost, asked Valve to let players filter out games disclosed as containing AI-generated content and exclude specific tags like 'Incremental Games' from the Discovery Queue. Other users, including EmmaBooney and aesoprowwy, said the flood of 'AI slop' has made it harder to find human-made games and hope for lower engagement on such titles.

New site Playground launches as directory for AI-built browser games

A Show HN post introduces Playground, a site that collects browser games built with AI tools like GPT and Claude models. Creators submit games via a form including a play link, cover image, device compatibility and category tags, and each submission is manually reviewed before being listed. The service is free to submit to.

AI analysis suggests Super Mario 64 plaque reads 'Eternal star / We hope so'

A fan named supermochi64 used the AI model Claude Opus 5.5 alongside GPU-based font testing to decode the long-illegible 32x32 pixel plaque text in Super Mario 64's castle courtyard. The method, which tested millions of font and word combinations against the texture, scored 'Eternal star / We hope so' as a far better match than the popular fan theory 'L is real 2401.' The analysis also identified the likely font as Palatino Bold Italic from Adobe's 1990 Mac release.

StarSkirmish Bench ranks LLMs on coding StarCraft bots in one hour

A new benchmark called StarSkirmish Bench v0.2 tests flagship LLMs from OpenAI, Anthropic, Google and Meta by giving each one hour to write a Protoss bot in C++ for StarCraft: Brood War, then scoring win rates against human-written and demo bots. GPT-6 Astra topped the leaderboard, with GPT-6.1 Sol second, while Gemini 4 Argon, Claude Opus 5.5 and Claude Fable 5.1 scored closely behind between 37 and 39. Even the top model, GPT-6 Astra, won only 7% of games against the strongest human-written bots like Stardust, PurpleWave and BananaBrain.