Tencent opens Yuanbao Search API: 157 authoritative sources, billions of daily internal calls
机器之心 · wechat · 2026-10-22
Tencent Cloud has opened up "Yuanbao Search," a maintained AI search backbone already battle-tested in 50+ internal products (Yuanbao, ima, WorkBuddy) with hundreds of millions of daily calls.
- Why it matters: UK fact-checker Full Fact queried five top models daily for ten weeks and found outdated/inconsistent answers (e.g., insisting a former PM was in office two months after the handover) — the bottleneck is often the retrieval layer, not the model
- Access: Skill, MCP, or plain API; free tier of 6,000 calls/month through November
- Sources: 157 authoritative sources across 13 verticals (finance, government, healthcare), plus Tencent ecosystem and partner data (JD, VariFlight), cross-checked to cut hallucinations
- Tech: agent-search co-optimization, three-stage Label-Teacher-Student ranking distillation (avg searches per task dropped from 8 to 5 in WorkBuddy tests), GistToken compressing multi-thousand-token pages to 100 ranking tokens, 150B+ vector index with <10ms retrieval and 94%+ recall, 90% lower unit inference cost
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