Why Open-Weights AI Models Are Winning: Best China AI API Gateway 2026

574 Points on Hacker News, Zero API Lock-In. Open Weights Are Eating the AI World.

On July 27 2026, “Our position on open-weights models” hit 574 points on Hacker News. The debate is simple: are open-weights AI models good for the ecosystem? For developers building production applications, the answer is increasingly clear. Open-weights models from Chinese AI labs now match or approach closed-source frontier models on key benchmarks while costing 90-97% less per API call.

Here is the kicker: DeepSeek V4 Flash scores MMLU 88.5 versus GPT-4o at 88.7. Yet the API cost is $0.15 per million input tokens for DeepSeek versus $5.00 for GPT-4o. That is 97% cheaper for equivalent performance.