GroupTravelBench - Plan Validity: leaderboard
Metric: Plan Validity (%): share of final itineraries that pass all nine deterministic feasibility checks (transport, lodging, scheduling, cost), over all 650 tasks, on GroupTravelBench, multi-user multi-turn group travel planning in a group-chat sandbox with 10 cached travel tools (DeepSeek-V4-Flash user simulator at temperature 0, agent temperature 0.7, mean of 3 trials per task); GPT-5.1 in instruct mode, the other models with reasoning enabled; higher is better. Source: arxiv.org. Saturation forecast: Around 2029. 9 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Qwen 3.5 Plus (Thinking) | 12 |
| 2 | Qwen 3.6 Max (Preview) (Thinking) | 7 |
| 3 | GPT-5.1 (Non-reasoning) | 1 |
| 4 | Qwen 3 4B Instruct | 1 |
| 5 | Qwen 3.5 Flash (Thinking) | 1 |
Interactive version: theaggregate.ai/benchmark?slug=grouptravelbench-plan-validity · How It Works · Data refreshed daily, snapshot 2026-10-07.