JourneyBench (Static-Prompt Agent) - Telecommunications: leaderboard

The Telecommunications procedure of JourneyBench (Balaji et al., 2026), a customer-support benchmark in which an LLM agent must follow a business workflow graph in conversation with a GPT-4o simulated user; the whole standard operating procedure is compiled into one static system prompt. User Journey Coverage Score from 0 to 1 (a conversation scores 0 on any missing, extra or misordered tool call and otherwise its share of correct tool parameters); higher is better.

Metric: User Journey Coverage Score (0-1; a conversation scores 0 on any missing, extra or misordered tool call, otherwise its tool-parameter accuracy; GPT-4o simulated user, 40-turn limit; Telecommunications SOP graph; the whole SOP graph compiled into one static system prompt). Source: arxiv.org. Saturation forecast: Estimated already saturated. 4 models tracked.

Top models

#ModelScoreOverall rank
1GPT-4o0.42#741
2GPT-4o Mini0.3#1627
3Llama 3.3 70B Instruct0.12#1353
4Claude 3.5 Haiku0.12#1563

No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.

Interactive version: theaggregate.ai/benchmark?slug=journeybench-static-prompt-agent-telecommunications · How It Works · Data refreshed daily, snapshot 2026-11-12.