Unverified50% confidenceFactExact time
OpenAI's GPT series is completely closed-source and is only billed per token through an API, and Anthropic's Claude is the same.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
8/19/2026
First Seen
Valid until: 11/17/2026
Sources
中国开源大模型崛起：从Reddit漫画看全球AI格局变化
Related Claims
UnverifiedAfter GPT-3, OpenAI gradually stopped releasing full model weights and provides access only through a paid API.79% similarUnverifiedThe GPT series (OpenAI) and Claude (Anthropic) are closed-source models.79% similarUnverifiedOpenAI announced the complete shutdown of its fine-tuning service API, citing that GPT 5.5 is already sufficiently powerful in areas such as instruction following and format consistency.76% similarPartially VerifiedOne API supports integration with large model APIs including OpenAI GPT series, Google Gemini, DeepSeek, and Claude.76% similarUnverifiedOpenClaw can masquerade as a Codex client via a plugin, leveraging the user's existing GPT membership authentication information to directly call OpenAI's official GPT-5.5 model.75% similar
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