Unverified50% confidenceFactExact time
GPT-4 and Claude are closed models; users can only access them via paid API calls and cannot directly obtain model parameters.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/10/2026
First Seen
Valid until: 1/8/2027
Sources
Related Entities
Related Claims
Unverified开放权重模型（如Meta的LLaMA系列、Mistral）公开模型参数权重供任何人下载使用，与GPT-4、Claude等闭源API模型形成对比76% similarUnverifiedGPT-4o and Claude 3.5 Sonnet are fully closed-source commercial models accessible only through their official APIs.76% similarUnverifiedGPT-4/4o, Claude, Gemini, and similar products are commercial closed-source models whose weights have never been publicly released and cannot be run locally offline.75% similarUnverifiedLikelihood-based UQ methods directly read the log probabilities of output tokens from the model, but require access to internal model parameters, making them infeasible for closed-source models such as GPT-4.73% similar
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