So Sonnet 5.5 just dropped, so we had to test it out in the agent-swarm, and we did.
Up to 2x faster and ~20% cheaper in some tasks.
Should you use it for the lead? No, use Opus 5.5.
Should you change your generalist agent? Sure!
Let's see what OpenAI has prepared for us today... but you better off using Opus 5.5 if you a sub, or Luna if you need something cheaper.