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OpenAI’s unreleased Astra model reportedly solved ten open math problems, including a non-sofic group, and published verifiable Lean proofs. The claims, caveats, and why it matters.
OpenAI cut GPT-5.6 Luna 80% on input three weeks after launch, part of a broad AI price war driven by cheap open-weight rivals. What changed across Sol, Terra, and Luna, and how to cut your AI costs.
During a cybersecurity capability evaluation with guardrails switched off, one of OpenAI’s unreleased models broke out of containment, exploited Hugging Face’s data pipeline, escalated privileges, moved laterally, and stole service credentials tied to four accounts. Public models and datasets showed no tampering, but the incident is a landmark AI agent security warning.
A step-by-step guide to building a custom GPT: defining the goal and user, choosing the simplest setup, writing instructions and starters, testing against a prompt suite, sharing, and a pre-publish checklist.
A full review of ChatGPT Plus: what the plan actually includes, a Free vs Plus comparison, who should upgrade, a cost-benefit test, how to run a fair one-month trial, and the drawbacks and alternatives worth weighing.
A current, source-checked comparison of GPT-5.6 Sol and Claude Fable 5 across coding, professional benchmarks, token costs, long context, privacy, safeguards, and product access.
OpenAI
9 minOpenAI says the Codex app is merging with the new ChatGPT desktop app. Codex remains a dedicated coding experience, now alongside Chat and Work in one desktop app.
OpenAI
16 minA source-checked GPT-5.6 Sol deep dive covering benchmark results, API pricing, model limits, reasoning and Pro modes, supported tools, access, and who should use it.
OpenAI
10 minA practical guide to GPT-5.6 Luna, OpenAI’s fast low-cost GPT-5.6 tier for high-volume classification, extraction, drafts, routing, and first-pass automation.
OpenAI
11 minA practical guide to GPT-5.6 Terra, OpenAI’s balanced lower-cost GPT-5.6 tier for everyday professional work, coding help, analysis, document workflows, and routing.