A Mozilla report released September 15–16, 2026, found that Chinese open-source AI models like Kimi K3 are now only four months behind proprietary frontier models from Anthropic and OpenAI, while costing 70–80% less. The analysis suggests most organizations should adopt open models as their default choice.
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Ars previewed Mozilla’s report on how cheap open models caught up on capability.
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"Exclusive: Paying for frontier AI models buys 4-month head start at 5x the cost" "Ars previewed Mozilla’s report on how cheap open models caught up on capability." https:// arstechnica.com/ai/2026/09/exc lusive-open-chinese-models-close-gap-with-silicon-valleys-frontier-ai-models/ # Mozilla
Mozilla’s State of Open Source AI report puts Kimi K3 about four months behind closed frontier models at 30% of the price.
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