LLM Output Attribution
Watermark Embedding Specifications in Leading LLM APIs
How OpenAI, Google, Anthropic, xAI, and vLLM embed text watermarks.
Marcus Elesin · November 9, 2026 · 8 min read
Section
1 story in LLM Output Attribution
How OpenAI, Google, Anthropic, xAI, and vLLM embed text watermarks.