DeepSeek-R1 Reasoning API: Production Guide with Chain-of-Thought (2026)

DeepSeek-R1 Reasoning API: Production Guide with Chain-of-Thought (2026) TL;DR: DeepSeek-R1 exposes its full chain-of-thought via API at $0.28/M tokens — roughly 9× cheaper than GPT-5.4 and 18× cheaper than Claude Opus 4.7. This guide shows you how t...