Perplexity Brain is memory for the work, not the user
Perplexity's Brain feature points at the next useful layer in agents: remembering what happened during the work, then using that memory to reduce repeated effort.
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Perplexity's Brain feature points at the next useful layer in agents: remembering what happened during the work, then using that memory to reduce repeated effort.
The wrong question is not which model is best. It is which model belongs in which part of the system. Grok looks increasingly useful as the live signal layer, while GPT and Opus handle the high-stakes work.
StepFun Step 3.7 Flash is now available through the Nous Portal for 30 days free: a 198B sparse MoE model built for fast agentic workflows, long context work and practical AI execution.
A video explainer on why Grok is becoming interesting as the live operator layer in an agent stack, and why the right model question is about role, not dominance.
A video companion to the Step 3.7 Flash insight, covering why the new free Nous Portal model matters for Hermes users, agentic workflows and long-context execution.