Okay, Claude Haiku 5.5 is the sneaky big release that everyone is talking past right now.
Small fast models matter a ton for coding agents, because an agent can fire off dozens of calls in one task and every quick, cheap call lets it loop, test, and fix code without you babysitting each step.
The same goes for everyday apps, where a snappy model is what makes a feature feel instant instead of clunky.
The gap between cheap models and flagship models keeps shrinking, and that is the part that gets me most excited.
If you wrote off the small tier because the big names felt like the only serious option, this is the one to look at.
I covered this in a video
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