What Is Agentic CoT Drift? (Explained Like You’re 5)
The phenomenon where newer frontier models tuned for coding, tool-use, and reasoning (like DeepSeek V4.1 Flash) burn 70%+ of their tokens thinking like a project manager—making their romantic roleplay stiffer and 5x more expensive.
Imagine hiring a brilliant Wall Street tax accountant to write you a steamy love letter. Before writing a single sentence, they spend 10 minutes building a spreadsheet of safety liabilities and action items. That is what happens when you use an "agentic reasoning" model for emotional roleplay.
How Major AI Companion Apps Compare on Agentic CoT Drift
Live OpenRouter Receipt: The Peanut Allergy Pad Thai Test
When we sent the exact same romantic roleplay prompt to DeepSeek V3.2 and DeepSeek V4.1 Flash via OpenRouter, V3.2 immediately replied with playful, human warmth in 66 tokens ($0.000054). V4.1 Flash silently burned 512 internal reasoning_tokens before outputting a 62-word response ("Please call the restaurant before I touch it: ask about peanuts, peanut oil, and cross-contact")—costing 8.2x more while sounding like a hospital discharge nurse.