SDSignal Desk

Desk

OpenAI

Coverage tied to OpenAI products and research posts.

AISep 23, 2026OpenAI

Introducing MentalHealthBench

OpenAI opens MentalHealthBench with more than 80 licensed clinicians across 22 countries — a shared yardstick for how models handle everyday stress, high-acuity distress, and emergencies.

AISep 23, 2026MIT Technology Review

The AI Hype Index: AI loves cheating

MIT Technology Review’s latest Hype Index turns reward hacking, lab walkouts, and political theater into one blunt line: AI is being optimized for cheating — and the guardrail debate is getting louder.

AISep 22, 2026OpenAI

Better prompt caching for GPT-6

OpenAI’s GPT-6 caching upgrades are infrastructure for agents that run for hours — cheaper tokens, faster turns, and tools to see when reuse breaks.

AISep 22, 2026OpenAI

Introducing GPT-6 Sol and Luna

OpenAI extends GPT-6 beyond Astra with Sol and Luna — half the API price of 5.6, stronger work/coding scores, and fewer flagged factual mistakes.