Three threads this issue. Anthropic grabbed the top-dog spot back with Opus 5.5: benchmarks beat Fable 5.1, writing and task reliability are up, and it's cheaper than Opus 5. Claude Code's 5-hour cap got a 20% bump and cloud sessions are now GA. Keshav says Codex converts are already drifting back.
OpenAI slashed GPT-6 Luna and Sol prices by 50%—$0.10/$2 per million input tokens. But the intelligence gain is minor, and Sol clearly trails Opus 5.5. Keshav ran Sol on a 4-hour task that ate 22% of his $100 monthly Codex quota. The output was decent, but Astra burns through limits fast.
At Meta Connect, Muse went wide: it can control any Mac app, shop via Walmart, Best Buy, and Sephora, and it's getting its own email address so you can CC it on threads. Zuck says most token usage stays free, but Meta might take a small transaction cut. Muse is also coming to glasses and a Tamagotchi-like keychain—aggressive hardware push.
Separately, Claude found a novel enzyme system in bacteriophage DNA. Nobody knows what it does yet, and reruns sometimes miss it. Treat this one as a science curiosity for now.