Expired70% confidenceFactTime unknown
OpenAI introduced the Seed parameter in November 2023 to mitigate output non-determinism, but it is no longer supported in the new Response API in 2026.
1
Sources
70%
Confidence
Medium-term (~90 days)
Relevance
6/1/2026
First Seen
Valid until: 8/30/2026(expired)
Sources
AI Agent模型分层路由策略：Token成本、幻觉应对与选型实战
bilibili前端小卒
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