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Arjun Sethi Head of AI FinOps & Enterprise TCO

Head of AI FinOps & Enterprise TCO at Eyestech. Former cloud infrastructure auditor specializing in per-action inference economics, prompt cache arbitrage, and enterprise token burn forecasting.

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DeepSeek Isn’t Subsidizing Tokens. You’re Just Getting Ripped Off by American Clouds.

Arjun Sethi By Arjun Sethi

Forensic investigation into DeepSeek’s unit economics: why no Western cloud could match the pre-August $0.28 price, why DeepSeek temporarily hiked rates on August 16 after an 8-trillion-token surge, how V4.1-Flash’s 890-byte CED attention enables Western startups to hit $0.66 profitably today, and why American Big Tech hyperscalers charge a 4,000% markup to service legacy debt.

The $200 Subscription Arbitrage: Why OpenAI Paused ChatGPT Pro Sign-Ups and the Real Economics of GPT-6 Astra

Arjun Sethi By Arjun Sethi

OpenAI has paused new sign-ups and upgrades for the $200/mo ChatGPT Pro tier as power users leveraging the 20X token capacity multiplier on GPT-6 Astra burn through 15M to 30M reasoning tokens per month, creating up to a -$1,240/month deficit per seat.