A stealth model topped OpenRouter on a ten-task benchmark, and its identity was fingerprinted within days — then confirmed. The benchmark and the leak are both worth reading carefully, for different reasons.
Anthropic now marks Claude's output with an imperceptible signature. Their own documentation admits the signal proves nothing in either direction — and it is arriving in a world ready to treat it as binary.
The bear case on frontier labs is right about tokenomics and wrong about corporate mortality. Two indicators will tell you which way the decade breaks.
Memory makes agents ~20% more accurate with ~40% fewer tool calls. It is also the one layer of your stack with no tenancy model, and the leaks look like insights.