Perplexity Decider Flash matches Wald accuracy at nearly 2x speed on M4 Mac

antoine_chaffin · x · 2026-10-18

Perplexity's Decider Flash matched Wald's accuracy at nearly twice the speed in third-party tests: on a 16GB M4 Mac mini it took a median 1.35s per email-completion check vs 2.62s for Wald. Tested across synthetic agent decisions, real email threads and prompt injection cases, Flash is now the reviewers' pick — and it runs fast, fully on-device.

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