. Must be 2-4 sentences concise summary, using precise technical language, no invented info. Use only provided info. The news title and description: "I Shipped DeepSeek, Qwen, Kimi, and GLM: A CTO's Field Notes". It mentions shipping DeepSeek, Qwen, Kimi, and GLM, CTO field notes, $41k monthly OpenAI bill tripled, 14-person startup processing 18 million tokens per day, unit economics worsening, pricing change risk. Need 2-4 sentences. Provide link with original source URL. Must not include any extra text before or after. So output should be something like:

The CTO details shipping four large language models — DeepSeek, Qwen, Kimi, and GLM — to reduce costs after a $41 000 monthly OpenAI expense tripled, processing 18 M tokens daily for a 14‑person startup. The post explains the unit‑economics pressure and the strategic shift toward open‑source alternatives. Read original