Nils Durner's Blog Ahas, Breadcrumbs, Coding Epiphanies

OpenAI Codex configuration for OpenRouter

OpenAI’s coding & work tool Codex is not tied to OpenAI as a first-party model provider. In particular, it allows OpenRouter to be used - a hub to currently 480 models offered by independent inference providers. These inference providers offer models not found in the OpenAI like OpenAI’s own open-weights models gpt-oss-20b or gpt-oss-120b, or th... Read more...

GPT 5.6 release

GPT-5.6 is slated for general (and international) release on July 9. The model family comprises of three sizes: Sol, Terra and Luna. The model card is here. A “select group of trusted partners and organizations” had preview access, including Ethan Mollick, Derya Unutmaz and Peter Gostev. GPT-5.6 is said to “feel” part of the GPT-5 family while t... Read more...

AI-assisted Writing, 2026-07 edition

The house style of frontier LLMs still seems rather obnoxious at times, which I particularly noticed with GPT-5.5 in Codex. Anthropics new Fable 5 does best on the Creative Writing EQ-Benchmark (2229.6 score vs 2028.5 with GPT-5.5), but Ethan Mollick calls it “overwrought language” that cannot be prompted away: Peter Gostev confirms limited stee... Read more...

EUDI Wallet-backed image commitments

The first European Digital Identity Wallet hackathon for the German implementation has concluded. My submission is IIRY - an iPhone/iPad app + small backend that lets, for example, a parent challenge a request for money by a child over WhatsApp. It builds on - and extends - two relevant Content Credentials standards: C2PA and CAWG VC+VP. Importa... Read more...

Agentic Computer-Use

OpenAI Computer-Use (aka “SkyComputerUseClient”) is now officially available in the EU. Allowing Codex to operate directly on third party apps makes context management easier: it can use already logged-in browser sessions and click through documentation that isn’t prepared for AI intake. Also, goal verification becomes easier as it can visually ... Read more...