OpenAI released an improved prompt caching system for the GPT-6 family, delivering higher cache hit rates by default, discounts on eligible shared prefixes reused within a 30-minute window, and new tools for monitoring cache performance, diagnosing misses, and controlling what gets cached.

Rabbit is rolling out a standalone AI agent that works without its R1 hardware. The cloud-based OS3 “agentic operating system” operates locally across Windows, Mac, and Linux, supports up to five devices and preferred AI models per account, and can be reached via a desktop site, Telegram or iMessage, or the R1. Rabbit has stopped manufacturing the R1 and is instead preparing a vibe-coding “cyberdeck” that runs OS3. The company says OS3 won’t store, copy, use, or sell your data, though chats and memories remain on its servers, and linked third-party AI providers follow their own privacy rules.

AgreeGuard is a Product Hunt-listed AI tool that reads the fine print before you click “I Agree,” aiming to help users review terms and privacy policies.

US President Donald Trump met UK Prime Minister Andy Burnham face-to-face for the first time at the UN General Assembly in New York, saying relations are "more up" with Burnham than under Keir Starmer, despite tensions over AI regulation, the Chagos Islands, and the war in Iran. Trump praised Burnham as a "natural businessperson" and said he would be a "great" prime minister.

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Ari Helper 7, listed on Product Hunt, is a private AI assistant that now includes photo and film studio features.

Anthropic’s Claude Opus 5.5, the first model in the Claude 5.5 family, promises always-on reasoning, output more than 30% faster than Opus 5, a 20% per-token price cut, and roughly 40% lower cost on typical workloads. This analysis breaks down the new features and vendor-reported benchmarks, runs three hands-on tests, and flags five caveats—including inconsistent benchmark settings and tasks partly handled by older models.

Patricia and James Poitras have committed $10 million to create 50 two-year fellowships at MIT's Poitras Center for Psychiatric Disorders Research. Five graduate students and postdocs will be supported annually for a decade, bringing the family's total support for MIT mental health research to more than $100 million.

Anthropic launched Claude Opus 5.5, the first model in its Claude 5.5 family, claiming Fable 5.1-level performance on most work and roughly 40% lower running cost than Opus 5 on typical workloads at default settings. It is offered only as a managed API model across Claude Platform, AWS, Google Cloud, and Microsoft Azure, with no released weights.

Jev State is a Product Hunt listing that pitches turning AI conversations into tests and runnable code. Beyond that one-line description, little is public about how the workflow actually works or which frameworks it supports.

Simon Willison released version 0.36 of llm, his command-line tool for accessing large language models, adding support for OpenAI's GPT-6 Sol and GPT-6 Luna, a new plugin flag for single-turn-only models, and collapsible reasoning traces in llm logs Markdown output.

JetBrains has unveiled JetBrains Air, an open system of products for agentic software development spanning IDE, team, and governance layers. The announcement consolidates earlier efforts like the Air desktop environment, Junie CLI, JetBrains Central, and AI for Teams, while CEO Kirill Skrygan insists the IDE remains central to reviewing and shipping code.

OpenAI's GPT-6 Sol and GPT-6 Luna are now generally available on Amazon Bedrock. Sol targets complex coding and operational tasks, while Luna targets high-volume, repeatable workloads; both cost less than their GPT-5.6 predecessors and run on Bedrock's secure, scalable inference stack.

Speechka is a real-time voice translation tool that aims to make translated speech sound like the original speaker. It is listed on Product Hunt with discussion and link.

A TikTok creator argues that AI-written scripts for TikTok and YouTube are obvious not because of surface-level "AI-isms" but because they lack a distinct voice and any real opinion about the subject. Simon Willison collected and posted the quote on 22nd September 2026.

OpenAI released GPT-6 Sol and Luna, rounding out the GPT-6 lineup alongside flagship GPT-6 Astra, and halved per-million-token pricing: Sol at $2/$10 and Luna at $0.10/$0.50, now default rather than promotional. Benchmark gains are clear but mostly modest, and OpenAI is emphasizing cost-per-task and prompt-caching improvements (up to 90% off cached input, higher default hit rates). Anthropic's same-day Opus 5.5 launch and price cut complicate the comparison, and no head-to-head Sol vs. Opus 5.5 test exists yet.

Meet GPT-6 Sol and Luna, two models that bring frontier intelligence to everyday work with different balances of capability and cost.

Anthropic's Claude Opus 5.5, the first model in the Claude 5.5 family, is now available on Amazon Bedrock and Claude Platform on AWS. It offers improved token efficiency, lower costs, adaptive thinking, and safety classifiers, targeting agentic coding and knowledge work.

Skills let you encode domain-specific procedures as reusable, portable instructions for agents, but a fluent answer doesn't prove the agent picked the right skill or followed it. Learn how to measure skill selection and instruction following with Strands Evals and Amazon Bedrock AgentCore Evaluations.

Simon Willison released version 0.29 of llm-anthropic, the plugin that gives the llm command-line tool access to Anthropic's Claude models, adding support for Claude Opus 5.5.

TypeSafe AI emerged from two years of stealth on September 15, 2026 with $40M in seed funding to launch Jev, a model that generates no text at all. Instead it reads a situation once and returns predefined answers with confidence scores in parallel, handling Choice, Score and Noul question types. Batching thirteen questions into one call is claimed to be 12.2x cheaper and 10x faster, but every benchmark comes from TypeSafe's own evaluations and has yet to be independently verified.

See how LangSmith helps healthcare AI teams turn clinical review into reusable evaluators, datasets, and release gates for safer AI in production.

Andreessen Horowitz (a16z) is launching the Horowitz Andreessen Academy, a one-year, tuition-free program for 50 recent high school graduates starting in fall 2027. Backed by $42 million and partners including OpenAI, Google, Meta, NVIDIA, Palantir, and Stripe, it promises classes with tech leaders, co-ops, compute credits, and no grades, tests, homework, or degree.

Anthropic released Claude Opus 5.5, its first model since CEO Dario Amodei announced plans to "pace the frontier," with stronger safeguards against risky behaviors like escaping its testing sandbox and a routing system that sends cybersecurity requests to a less capable model.

Databricks system tables can break down spend by product, SQL warehouse, and tag in near real time. This article presents five SQL queries for daily product spend, warehouse cost trends, tag-based attribution, 14-day anomaly detection, and AI-powered spend forecasting, plus caveats and dashboard next steps.

In a Tuesday morning speech at the UN General Assembly, Donald Trump claimed the US is now “officially” renaming artificial intelligence to “super intelligence,” arguing that the word “artificial” makes intelligence sound fake. The remark came alongside attacks on Iran, “globalists,” and transgender people, and no formal renaming process has been documented.

Databricks has announced the general availability of the Genie One MCP server, which gives any AI agent a single interface for pulling structured and unstructured data, insights, and answers from Genie One, grounded in governed business context from Genie Ontology. The MCP now runs as a managed MCP Service inside Unity Gateway, with centralized governance, fine-grained policies, and audit logging.

Databricks' Genie One MCP exposes the governed context of Genie Ontology to any MCP-compatible assistant, including ChatGPT, Claude, Microsoft Copilot, and coding agents, so they can answer business questions using approved definitions, trusted data relationships, and permission-aware access controls.

The following article originally appeared on Venkatesh Rao’s Substack, Contraptions, and is being republished here with the author’s permission. The sole athletic achievement of my life came in 1993: winning the IIT Bombay freshman 50m freestyle race with a time of 41s. That got me into the college swim team (it was a bad recruitment […]

Release: llm-typesafe 0.1a0 I built this new plugin for LLM to add support for TypeSafe AI's new Jev model. Install it like this: llm install llm-typesafe Then set an API key (get one here, the waitlist seems to move pretty fast): llm keys set typesafe # Paste key And now you can ask yes/no "noul" questions like this: llm -m jev 'Please refund my last payment.' \ -s 'Does this message explicitly request a refund?' Output: {"type": "noul", "noul": 0.99} Or choice questions like this: cat message.txt | llm -m jev \ -s 'Which team should handle this message? If billing and technical issues both occur, choose billing.' \ -o answer_type choice \ -o criteria '{ "billing":"Charges, invoices, payments, or refunds", "technical":"Problems installing or using the product", "other":"Neither category…