GPT-5

Show HN: CLI to order groceries via reverse-engineered REWE API (Haskell)

I just had the best time learning about the REWE (German supermarket chain) API, how they use mTLS and what the workflows are. Also `mitmproxy2swagger`[1] is a great tool to create OpenAPI spec automatically.And then 2026 feels like the perfect time writing Haskell. The code is handwritten, but whenever I got stuck with the build system or was just not getting the types right, I could fall back to ask AI to unblock me. It was never that smooth before.Finally the best side projects are the ones y

Ask HN: What's the latest concensus on OpenAI vs. Anthropic $20/month tier?

I'm considering $20/month variants only.I've had a Claude subscription for the past year, although I only really started properly using LLMs in the past couple of months. With Opus, I get about 5 messages every 5 hours (fairly small codebase); more with Sonnet. I then cancelled that, since its practically unusable and got ChatGPT sub about a week ago. Currently using it with 5.4 High and I haven't had to worry about limits. But the code it produces is definitely "differe

Show HN: CMPSBL Software Factory — Free Daily Drop $2.9M

I’m a solo founder. I built a Cognitive Infrastructure Substrate — pure algorithmic code, zero AI API calls inside, no OpenAI dependency, fully patentable. A discovery engine collides software primitives against each other and crystallizes viable configurations into production-ready code.It has autonomously discovered over $4.3B in software capabilities. I didn’t write what I’m sharing. The substrate found it.Neural Arbiter — CJPI 100 | Governance | $3M substrate valuationOne sentence: an AI dec

Show HN: Agent Orchestrator, a local-first Harness Engineering control plane

I have spent a long time working in an XP/TDD style, so when AI coding tools became useful enough for real work, I adopted them quickly. The first bottleneck I hit was not code generation, it was verification: AI could write code and tests quickly, but I was still the person reviewing implementations, clicking through flows, checking logs, inspecting database state, and deciding whether the result was actually correct.That pushed me to move validation further left. Before implementation, AI

Show HN: FastFN – a polyglot file-based runtime for APIs and SPAs

Part of the idea comes from liking the simplicity of older CGI-style models: put code in a place, map it to a route, and keep the deployment model understandable. FastFN takes that in a more modern direction with multiple runtimes, local dev, OpenAPI, and a simpler path for mixed API + frontend projects.It supports Python, Node, PHP, Lua, Rust, and Go in one project.This started as a weekend project that got out of hand. I am thinking were to take it next now.Docs: https://fastfn.dev&#

OpenAI releases GPT-5.4 mini and nano, its most capable small models yet

OpenAI has introduced GPT-5.4 mini and nano, bringing faster performance and significantly lower costs to high-volume AI workloads while retaining many flagship capabilities.

Anthropic's Claude AI Can Now Use Your Mac While You're Away

Anthropic are out with yet another update to Claude AI: the company's Claude Code and Cowork tools can now remotely control your Mac on your behalf. When Claude lacks a direct connector for a given app like Slack or Google Calendar, it falls back to controlling the computer like a human, using the screen to navigate. From the Claude blog: In Claude Cowork and Claude Code, you can now enable Claude to use your computer to complete tasks.

Claude AI popular among Indians for coding and CV building, Anthropic report highlights shift in workforce tools

Claude AI is gaining popularity among Indians for coding and CV building, reflecting a shift in workforce tools, according to ...

Judge blocks Pentagon from labeling Anthropic AI a "supply chain risk"

A judge has blocked the Trump administration from labeling Anthropic a supply chain risk and cutting off all federal work ...

Judge calls Pentagon's moves against AI firm Anthropic "troubling"

A judge sharply questioned a lawyer for the federal government on Tuesday over the Pentagon's efforts to cut Anthropic's AI out of its classified systems.

Data leak reveals Anthropic's latest secret model, Claude Mythos: report

Anthropic’s Claude Mythos leak reveals a powerful new AI tier with gains in reasoning, coding & cybersecurity—plus IPO ...

Judge temporarily blocks Trump administration's Anthropic ban

The order briefly stops the government from labeling tech company Anthropic a "supply chain risk," calling that "classic First Amendment retaliation."

Leaked Anthropic Model Presents ‘Unprecedented Cybersecurity Risks,’ Much to Pentagon’s Pleasure

There are two groups that seem absolutely thrilled by the recent revelation that Anthropic is working on a top-secret AI ...

Judge temporarily blocks the Pentagon from declaring Anthropic a national security risk

Anthropic has said it could lose billions if a federal judge didn't step in to block the Trump administration.

Judge blocks Trump administration from limiting Anthropic's contracts with federal government

Anthropic sued the Defense Department this month after it labeled the company a "supply-chain risk to national security." ...

Anthropic wins court order pausing Trump ban on AI tool

Anthropic PBC won a court order blocking a Trump administration ban on government use of the company's artificial intelligence technology, after the Claude chatbot maker argued the move could cost it billions in lost revenue.

Judge blocks ban on Anthropic’s AI, calling it illegal ‘retaliation’

Anthropic PBC won a court order blocking a Trump administration ban on government use of the company’s artificial intelligence technology, after the Claude chatbot maker argued the move could cost it billions in lost revenue.

Anthropic got a win against Pentagon blacklisting. What it means for Palantir.

A federal judge on Thursday halted the Trump administration’s designation of Anthropic as a supply-chain risk.

OpenAI Expands Codex With Shareable Plugins and Team Workflow Tools

OpenAI adds plugin support to Codex with Slack, Figma, and Notion integrations, enabling reusable workflows and better team ...

OpenAI adds plugin system to Codex to help enterprises govern AI coding agents

The move lets IT administrators standardize and distribute agent behaviors across engineering teams, but OpenAI’s third-party marketplace is not yet open.