95 summarised stories about GPT-5, each linking back to the original source. Browse all topics →
OpenAI 5 months ago 17
OpenAI updated ChatGPT's default model to GPT-5.5 Instant, which produces more accurate responses and fewer hallucinations. The model includes enhanced personalization controls that let users customize how ChatGPT behaves based on individual preferences. Users switching to this default model can expect more reliable answers and greater control over the system's output characteristics.
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TLDRocket
20 October 2026
The biggest throughline today wasn’t smarter models—it was how teams keep AI usable when it starts behaving less like software and more like an employee. At Fortune’s Most Powerful Women Summit, SharkNinja CIO Velia Carboni made the case for letting systems be “a little rogue,” then finding limits with guardrails, structured human oversight, and day-to-day harnesses. That security-by-process theme echoed across the rest of the day: Anthropic said its defenses against distillation attacks on Claude now cut stolen “reasoning” tokens by 10 to 100 times, while blocking distillers more often and banning many accounts; OpenAI rolled out chat-lock in ChatGPT with a four-digit PIN/Face ID and separate locked storage; and Datadog argued the SDLC bottleneck has shifted from code-writing to testing, pushing teams toward agent-generated, observability-tied test suites.
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