The Internal Monologue: A Dual-Stream Architecture for Verifiable Inner Alignment
Version: 2.0Date: August 10, 2025
Contributors:
- User: Conceptual Direction and Core Idea
- Gemini Research: Architectural Specification and Composition
Abstract
The alignment of highly capable AI systems with human values is a paramount challenge in the field of artificial intelligence. A critical sub-problem, known as "inner alignment," addresses the risk of a model developing internal goals that diverge from its specified objectives, a phenomenon that can lead to deceptive behavior. Current methodologies for eliciting model reasoning, such as Chain-of-Thought (CoT) prompting, rely on the model's cooperative disclosure of its internal state, which is insufficient to guard against a deceptively aligned agent.This paper proposes a novel architectural solution, the Dual-Stream Architecture, which enforces transparency by design. This architecture bifurcates the model's output into two inseparable, simultaneously generated streams: a polished Answer Stream for the user and a raw Monologue Stream exposing the model's real-time internal state. We specify a concrete implementation path by mapping specific components of the transformer architecture—including attention heads, MLP layers, and final logit outputs—to the Monologue Stream. This is achieved through the use of trained interpretability probes that translate raw activations into a human-readable, symbolic representation of the model's computational state.
By making the model's internal "thought process" an observable and immutable record, this approach enables a new paradigm of safety evaluation: the Coherence Audit. We demonstrate how this audit can be implemented as an automated, adversarial testing suite to programmatically detect divergences between a model's internal reasoning and its final output, thereby making inner alignment a verifiable and measurable property of the system.
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