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D5. Multi-Agent vs Single LLM

๋™์ผ ์•Œ๋žŒ A3 (CMP Step ์ด์ƒ) ์— ๋Œ€ํ•ด ๋‘ ๋ฐฉ์‹์„ N=3ํšŒ์”ฉ ์‹คํ–‰ํ•œ ๋น„๊ต ๊ฒฐ๊ณผ์ž…๋‹ˆ๋‹ค.

์‹คํ—˜ ์„ค์ •

  • ๋ชจ๋ธ: gpt-5-mini (์–‘์ชฝ ๋™์ผ, ๊ณต์ •ํ•œ ๋น„๊ต)
  • ์•Œ๋žŒ: A3 (CMP Step ์ด์ƒ), lot L20240510-N-08
  • Tier 1 (์ด์ƒ ํƒ์ง€): ์ ์ˆ˜ 0.95 / ๊ธฐ์—ฌ ์„ผ์„œ SLURRY_FLOW_LINE_B/A/C
  • Tier 1 ๊ฒฐ๊ณผ๋Š” ์–‘์ชฝ ๋™์ผ ์ž…๋ ฅ, Tier 2/3/4๋งŒ ๋น„๊ต
  • Multi-Agent: cause โ†’ impact โ†’ response ์ˆœ์ฐจ ํ˜ธ์ถœ (๊ฐ ์ „๋ฌธํ™”๋œ system prompt + ์ข์€ RAG context)
  • Single LLM: ์ „์ฒด ์ง€์‹ ๋ฌธ์„œ + Tier 1์„ ํ•œ ๋ฒˆ์— ์ž…๋ ฅ, Tier 2/3/4 ํ†ตํ•ฉ JSON ์‚ฐ์ถœ

์ •๋Ÿ‰ ๋น„๊ต

์ง€ํ‘œ Multi-Agent Single LLM ์šฐ์œ„
์Šคํ‚ค๋งˆ ๋ถ€ํ•ฉ๋ฅ  100% 100% ๋™๋“ฑ (์–‘์ชฝ structured output)
Citation ์ •ํ™•๋„ 100% 100% ๋™๋“ฑ
Latency (avg) 68.6 s 26.6 s Single (2.6๋ฐฐ ๋น ๋ฆ„)
Cost/run $0.0176 $0.0079 Single (2.2๋ฐฐ ์ €๋ ด)
Input tokens (avg) 9,987 4,452 Single
Output tokens (avg) 7,555 3,390 Single
์ฆ‰์‹œ ์กฐ์น˜ ์ˆ˜ (avg) 9.3๊ฑด 5.7๊ฑด Multi (1.6๋ฐฐ detailed)
์ค‘์žฅ๊ธฐ ์กฐ์น˜ ์ˆ˜ (avg) 9.7๊ฑด 5.0๊ฑด Multi (1.9๋ฐฐ detailed)
Yield_loss ฯƒ (์•ˆ์ •์„ฑ) 1.73 0.29 Single (์ข์€ ๋ถ„์‚ฐ)
์›์ธ ์ผ๊ด€์„ฑ (Jaccard) 0.00 0.00 ๋™๋“ฑ (N=3 ํ•œ๊ณ„)

Latencyยท๋น„์šฉ ๋น„๊ต

ํ•ด์„

Single LLM์ด ์šฐ์œ„์ธ ์˜์—ญ

  • ์†๋„ยท๋น„์šฉ: 1ํšŒ ํ˜ธ์ถœ์ด๋ผ latency 2.6๋ฐฐ ๋น ๋ฅด๊ณ  ๋น„์šฉ 2.2๋ฐฐ ์ €๋ ด
  • ์ˆ˜์น˜ ์•ˆ์ •์„ฑ: yield_loss ์ถ”์ •์˜ ํ‘œ์ค€ํŽธ์ฐจ๊ฐ€ ๋” ์ž‘์Œ (ํ•œ ๋ฒˆ์— ์ „์ฒด ๋งฅ๋ฝ์„ ๋ณด๋ฏ€๋กœ ์ผ๊ด€๋œ ์ถ”์ •)

Multi-Agent๊ฐ€ ์šฐ์œ„์ธ ์˜์—ญ

  • ์‘๋‹ต ๊นŠ์ด: ์ฆ‰์‹œ ์กฐ์น˜ 1.6๋ฐฐ, ์ค‘์žฅ๊ธฐ ์กฐ์น˜ 1.9๋ฐฐ ๋งŽ์€ ๊ถŒ๊ณ  โ€” Tier๋ณ„ ์ „๋ฌธํ™”๋œ prompt๊ฐ€ detailedํ•œ ์ถ”๋ก  ์œ ๋„
  • ๋ชจ๋“ˆํ™”: Tier๋ณ„ ๋…๋ฆฝ ๊ฒ€์ฆยท๊ต์ฒดยท์žฌํ•™์Šต ๊ฐ€๋Šฅ
  • ํ™•์žฅ์„ฑ: ์ƒˆ step/์‚ฌ์—…๋ถ€ ์ถ”๊ฐ€ ์‹œ ์—์ด์ „ํŠธ ์ถ”๊ฐ€๋งŒ์œผ๋กœ ํ™•์žฅ (Single์€ prompt ํ†ต์งธ ์žฌ์„ค๊ณ„ ํ•„์š”)
  • ์ž๊ฐ€ ํ•™์Šต: ์šด์˜์ž ์Šน์ธ ์‹œ Tier๋ณ„ ์ •๋ฐ€ํ•œ ์ธ์‹œ๋˜ํŠธ ๊ธฐ๋ก (Single์€ ๋ถ„๋ฆฌ๋˜์ง€ ์•Š์€ ํ†ตํ•ฉ ์ถœ๋ ฅ)

ํ•œ๊ณ„

  • N=3๋กœ๋Š” ์›์ธ ์ผ๊ด€์„ฑ(Jaccard) ์˜๋ฏธ ์žˆ๋Š” ์ฐจ์ด ์ธก์ • ์–ด๋ ค์›€ โ€” LLM stochasticity๋กœ ๋งค ํ˜ธ์ถœ๋งˆ๋‹ค ๋‹ค๋ฅธ ์›์ธ ๋„์ถœ๋˜์–ด ๋‘ ๋ฐฉ์‹ ๋ชจ๋‘ 0
  • citation/schema๋Š” ์–‘์ชฝ strict JSON mode๋กœ 100%์—ฌ์„œ ๋ณ€๋ณ„๋ ฅ ์—†์Œ

๊ฒฐ๋ก 

Multi-Agent ์ฑ„ํƒ. ๊ทผ๊ฑฐ:

  1. ์šด์˜ ํ™˜๊ฒฝ ์ ํ•ฉ์„ฑ โ€” ์‹ค fab์—์„œ๋Š” Tier๋ณ„ ์ฑ…์ž„์ž(ํƒ์ง€ํŒ€ยท์›์ธ๋ถ„์„ํŒ€ยท์ˆ˜์œจํŒ€ยท์šด์˜ํŒ€)๊ฐ€ ๋‹ค๋ฆ„. ๋ฉ€ํ‹ฐ ์—์ด์ „ํŠธ์˜ ๋ชจ๋“ˆ ๋ถ„๋ฆฌ๊ฐ€ ์กฐ์ง ๊ตฌ์กฐ์™€ ์ผ์น˜
  2. ์ž๊ฐ€ ํ•™์Šต ๋ฃจํ”„ โ€” Tier๋ณ„ ๋ถ„๋ฆฌ ๊ธฐ๋ก์ด ๋‹ค์Œ ๋ถ„์„์˜ ๊ฒ€์ƒ‰ ์ •ํ™•๋„๋ฅผ ๋†’์ด๋Š” ๋ฐ ์ ํ•ฉ
  3. ๋น„์šฉ ์ฐจ์ด ๋ฌด์‹œ ๊ฐ€๋Šฅ โ€” ๋‘ ๋ฐฉ์‹ ๋ชจ๋‘ ์•Œ๋žŒ๋‹น $0.01~0.02๋กœ ์ ˆ๋Œ€๊ฐ’ ๋ฏธ๋ฏธ. ๋Œ€๊ทœ๋ชจ fab ์šด์˜(์ผ ์ˆ˜๋ฐฑ ์•Œ๋žŒ)์—์„œ๋„ ์ผ $10 ๋ฏธ๋งŒ
  4. ์‘๋‹ต ๊นŠ์ด ์šฐ์œ„ โ€” ์ฆ‰์‹œยท์ค‘์žฅ๊ธฐ ์กฐ์น˜ ๊ถŒ๊ณ  ์ˆ˜๊ฐ€ 1.6~1.9๋ฐฐ ๋งŽ์•„ ์šด์˜์ž์˜ ์˜์‚ฌ๊ฒฐ์ • ์ž๋ฃŒ ํ’๋ถ€

Single LLM์ด ๋” ์ ํ•ฉํ•œ ์ผ€์ด์Šค: ๋‹จ์ˆœ ์š”์•ฝ/๋ถ„๋ฅ˜ ์‘๋‹ต, ๋ชจ๋“ˆ ํ™•์žฅ์ด ํ•„์š” ์—†๋Š” ๋‹จ์ผ ๋„๋ฉ”์ธ.

์‹œํ–‰์ฐฉ์˜ค (Lessons Learned)

  • ์ดˆ๊ธฐ ํ‘œ๋Š” ํ™”์‚ดํ‘œ(๐Ÿ”ป๐Ÿ”บ) ๊ธฐ๋ฐ˜์ด๋ผ ์˜๋ฏธ ํ•ด์„์ด ํ—ท๊ฐˆ๋ ธ์Œ. "์šฐ์œ„" ํ…์ŠคํŠธ ์ปฌ๋Ÿผ์ด ๋” ๋ช…ํ™•
  • N=3๋Š” ์ผ๊ด€์„ฑ ํ‰๊ฐ€์— ๋ถ€์กฑ โ€” ํ–ฅํ›„ N=10+ ๋˜๋Š” ๋™์ผ prompt์— temperature=0 ์ ์šฉ์œผ๋กœ ์ผ๊ด€์„ฑ ๋ถ„๋ฆฌ ์ธก์ • ํ•„์š”
  • ์–‘์ชฝ ๋ชจ๋‘ strict JSON mode ์‚ฌ์šฉํ•ด์„œ schemaยทcitation ์ฐจ์ด๊ฐ€ ์—†์Œ โ€” quality ๋น„๊ต๋ฅผ ์œ„ํ•ด strict ๋„๊ฑฐ๋‚˜ ๋” ๊นŒ๋‹ค๋กœ์šด schema๋กœ ํ‰๊ฐ€ ํ•„์š” (ํ™•์žฅ ์‹คํ—˜)