TREK C
AI benchmark
- Tier
- C why
- Snapshot
What is TREK?
TREK measures whether tool-using LLM agents can synthesize feasible travel itineraries that are constraint-correct, hallucination-free, executable, budget-valid and responsive to unstated traveler needs, scored by a deterministic evaluator.
General capability mostly
“Travel planning is a demanding stress test for tool-using LLM agents: a usable itinerary is a single artifact that must be right along many axes at once”
arxiv.org/abs/2607.26977v2 ↗
Paper: arxiv.org/abs/2607.26977v2 ↗
Tier C
Niche: a handful of models scored, or built by an RL vendor.
How much stands behind a tier: usage, who backs it, a confirmed line from its own site or paper, and a clear read on X. High with three of the four, medium with two, low otherwise.
- 14 models scored
- in curated RL directories (1 pt)
How we got to tier C
- Adoption: 14 models scored. Tier C.
- Not yet read on X.
- In curated RL directories: 1 point, a floor of none.
- Confirmed: a line from its own site or paper places it.
A clear view on X moves a tier one step up or down; most entries don't move. How tiers work.
Where TREK sits
Its domain on the map, live. Hover a logo for its name; click to open it. Open it on the full map
Next: browse all benchmarks. Entry from the RL Research daily scrape of public sources, 2026-10-19 snapshot.