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How I Built an iPhone App in Four Days with Opus 5.5

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  1. Claude Opus 5.5 now available on AI Gateway

    Claude Opus 5.5 is now on Vercel AI Gateway, delivering ~30% speed and ~40% cost gains over Opus 5, a 1 M‑token context, and breaking API changes that require adaptive thinking and structured outputs. It can be accessed via Vercel’s SDKs, OpenAI‑compatible endpoint, and coding agents, with optional fast mode and regional/ZDR controls.

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  2. Claude Opus 5.5

    Claude Opus 5.5 is Anthropic’s latest LLM, positioned to match Claude Fable 5.1 on most tasks while cutting compute cost by ~40% and latency by >30%. It ships with the same safety guardrails as the top‑tier models, scores best on Anthropic’s internal alignment audit, and shows measurable gains on coding‑heavy benchmarks (e.g., 66.4% on Agentic‑coding Terminal‑Bench vs 52.3% for Opus 5). Pricing d…

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  3. A Mac App, Not an iOS App on a Mac

    Codename One switched its default Mac build from iOS‑Catalyst to a native AppKit port. The new path creates true NSApplication/NSWindow objects with per‑window CAMetalLayer rendering, native menus, text input, multi‑monitor support and accessibility, eliminating the costly image‑copy pipeline of Catalyst and enabling proper desktop window behavior.

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  4. ProgramDistill: From Interactive Web Apps to Verifiable Reference-Guided SWE Tasks

    ProgramDistill is a new benchmark that automatically extracts 1,975 replay‑verified feature behaviors from 26 real web apps, builds 4,063 coding‑agent tasks, and measures how well state‑of‑the‑art agents (e.g., GPT‑6 Astra, Claude Opus 5) can reconstruct full or partial applications, revealing steep drops in success as restoration depth grows.

    Hugging Face Daily Papersarxiv.org1 minpaper