ReWOO: plan every tool call up front, then call the model only twice
Article summary
Quick briefing — cleaned from the original RSS feed
Give an agent a multi-hop question and the usual answer is ReAct: think, act, look at the result, think again, act again. It works, but there is a hidden bill. Every "think" is a full call to the model, and every call re-sends the entire growing transcript. A three-hop question costs you four model calls. A ten-hop one costs eleven. ReWOO — Reasoning WithOut Observation — asks a sharper question: what if the model never had to see the tool results at all while it was reasoning? Then it could…
1Key Takeaways
- Give an agent a multi-hop question and the usual answer is ReAct: think, act, look at the result, think again, act again.
- It works, but there is a hidden bill.
- Every "think" is a full call to the model, and every call re-sends the entire growing transcript.
- A three-hop question costs you four model calls.
2AIWedia Score
8.7/10
High relevance — worth your attention today
Based on source trust, recency, category impact, and story depth.
3Why it matters
Prompt and agent patterns spread fast; staying current saves time and token cost. DEV — Prompt Engineering reports that give an agent a multi-hop question and the usual answer is ReAct: think, act, look at the result, think again, act again.
Explore related
Browse toolsRelated tools
Prompt Engineering news
Explore curated prompt engineering tools on AIWedia — compare, rank, and launch from our directory.
Full story on DEV — Prompt Engineering
Read full articleHeadlines aggregated via RSS for discovery on AIWedia. Original content © DEV — Prompt Engineering. We link to the source and do not republish full articles.