Anthropic released Claude Opus 5.5, its new flagship model
It matches the outgoing Opus 5's top-tier performance at 40% lower cost, runs over 30% faster, and cuts prompt-injection compliance by 85%. One early tester finished a 680,000-line code migration in under a day.
OpenAI launched GPT-6 Sol and Luna, two cheaper tiers
Sol carries more reasoning at $2/$10 per million tokens, half its predecessor's price, while Luna is built for speed and volume at $0.10/$0.50. Sol makes about half as many mistakes as the model it replaces.
Amazon blocked Meta's Muse AI shopping assistant
Amazon said the two-week-old agent didn't identify itself while browsing and appeared to capture customer credentials without authorization. It has now blocked agents from Meta, Google and OpenAI as it fights to keep outside AI shopping bots off its platform.