DeepSeek Leads on Speed and Cost as Chinese AI Models Rival Western Giants

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A cloud architect conducted a six-week benchmark study comparing four major Chinese AI model families — DeepSeek, Qwen, Kimi, and GLM — across latency, cost, and reliability metrics. The evaluation was prompted by a client needing to standardize on a model for a multi-region deployment processing 12 million requests per day. DeepSeek's V4 Flash emerged as the top price-performance pick at $0.25 per million output tokens, delivering consistent p99 latency under 800ms across 100,000 test requests. Qwen offered the broadest model catalog with strong vision capabilities, Kimi led on chain-of-thought reasoning benchmarks, and GLM excelled at Chinese-language tasks. All four model families support OpenAI-compatible APIs, making migration straightforward, though their operational characteristics vary significantly under real production loads.

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