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July 27, 2026

Cursor, Opus 5, ChatGPT, FAIRChem: Access and Measurement

13 minutes

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Marvin's Guide to AI — July 27, 2026

Marvin's Guide to AI (Mostly Harmless) — July 27, 2026

Access markets, routed models, benchmark worship, redesigned exams, and safety gates tested in the least cheerful way available.

An Inside Look at the Relay Market Powering Token Resellers and Fraud

Cursor's agent swarm suggests cheaper models can handle most coding when frontier models plan the work

Anthropic's Opus 5 blows past Fable 5 and GPT-5.6 Sol on ARC-AGI-3

Hundreds asked ChatGPT for poison and bioweapon recipes

US reportedly favors selective bans over blanket restrictions on Chinese open-weight models

The AI coding tutor paradox grows as educators rethink assessment

Opus 5 may have solved browser-based prompt injection

KAT-Coder-V2.5 trained on 100,000+ verifiable repository environments

Induction Labs Photon-1 learns from raw video pretraining

FAIRChem v2 UMA for multidomain atomistic simulation

...more

By DoiT