Expired75% confidenceFactExact time
Mainstream APIs from OpenAI, Anthropic, and others use SSE by default for token-by-token LLM output.
5
Sources
75%
Confidence
Medium-term (~90 days)
Relevance
7/17/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 10/15/2026(expired)
Sources
Related Claims
VerifiedMainstream APIs from OpenAI, Anthropic, and others all use the SSE protocol to return token streams, with the frontend consuming data via the EventSource API or the fetch ReadableStream interface.81% similarUnverifiedThe openai-compatible package encapsulates common logic such as request construction, streaming SSE parsing, and function/tool calling, allowing providers to connect simply by configuring the endpoint and authentication method.80% similarUnverifiedBoth the Vercel AI SDK and the OpenAI API use SSE as the default streaming transport protocol.80% similarUnverifiedMainstream AI products such as OpenAI's ChatGPT and Anthropic's Claude universally adopt SSE for streaming output.79% similarUnverifiedMainstream model APIs including OpenAI, Anthropic, and Google Gemini all use the SSE protocol to return token streams, with each data field carrying one JSON fragment.77% similar
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