OpenAI GPT-5.5 Codex Bug Clusters Reasoning Tokens and Degrades Performance
A newly uncovered bug in OpenAI’s GPT-5.5 Codex causes reasoning outputs to cluster at rigid boundaries, resulting in degraded code generation.
Models
Severe Security Vulnerabilities Spiked 3.5x After Claude Mythos Preview Release
A massive surge in high- and critical-severity cyber vulnerability disclosures followed the internal deployment of Anthropic’s autonomous security model.
Anthropic Re-Releases Fable 5 Model via Claude Account on X
Anthropic’s Claude account on X has confirmed the return of Fable 5, marking a sudden revival of the specific model version.
Anthropic Fable 5 Returns Globally After Two-Week US Government Ban
Anthropic has restored worldwide access to its Fable 5 model following a US export control ban triggered by a security exploit.
Anthropic Restores Access to Claude Fable 5 and Mythos 5 After Export Controls Lifted
Anthropic will begin restoring access to its Claude Fable 5 and Mythos 5 models following the lifting of U.S. Department of Commerce export controls.
Anthropic Launches Claude Sonnet 5 to Cut Costs on Autonomous AI Agents
Anthropic has released Claude Sonnet 5, a midsize model designed to execute complex, multi-step agentic workflows at a fraction of the cost of flagship models.
Claude Code and ChatGPT Used to Challenge Human MRI Diagnosis
A patient used ChatGPT 5.5 Pro and Claude Code to analyze their shoulder MRI, uncovering questionable clinic treatments and a conflicting diagnosis.
Robin Williams Speech Offers Ultimate Antidote to AI Slop, Writer Argues
A viral essay argues that Robin Williams’ iconic park bench monologue in Good Will Hunting perfectly highlights the gap between AI-generated data and real human wisdom.
OpenAI Launches GPT-5.6 Sol Under Strict Government Restrictions
OpenAI has released its GPT-5.6 Sol model to compete with Anthropic’s Claude Mythos, but strict US government access controls limit its availability.