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B.R.A.I.N. versus Gemini Gemini is a replaceable provider. It supplies reasoning, Live interaction, and embeddings; it does not own B.R.A.I.N. identity, canonical memory, beliefs, provenance, or source artifacts. Finalized transcripts, normalized events, session state, and usage estimates persist locally. Raw PCM is forwarded transiently and is not retained as durable audio. These are fail-closed local guardrails. Provider billing remains authoritative. A missing provider secret fails closed; browser clients never receive it. See conversation and Live and provider operations.