DeepSeek leads surge in low-cost Chinese open-weight models on US platform
Open-weight AI models from China, particularly DeepSeek's new lightweight model, have seen a record surge in usage on the US web development platform Vercel's AI Gateway. On Tuesday, these open models accounted for 54% of token volume, exceeding proprietary models which made up 46%.

Briefing Summary
AI-generatedOpen-weight AI models from China, particularly DeepSeek's new lightweight model, have seen a record surge in usage on the US web development platform Vercel's AI Gateway. On Tuesday, these open models accounted for 54% of token volume, exceeding proprietary models which made up 46%. This trend reached a peak on Saturday when open models captured 62% of the platform's share, compared to 38% for closed systems, according to Vercel CEO Guillermo Rauch. This shift is attributed to business demand for cost-effective solutions, as demand for Anthropic's expensive Fable 5 model has stalled.
Article analysis
Model · rule-basedKey claims
4 extractedOpen models reached a record share of 62% on the platform on Saturday.
Open-weight models accounted for 54% of token volume on Vercel's AI Gateway on Tuesday.
Usage of open-weight AI models from China reached a record high on Vercel's AI Gateway.
Business demand for Anthropic's Fable 5 is stalling due to high costs.