EBR-bench v4 (card ban, single agent)
Games · 2026-09-22
Earthborne Rangers leaderboard protocol documented September 22: an exploitable card is banned, and the default uses a single agent. Scores measure objective completion using the best final two playthroughs; compaction is 250k tokens except for Claude Fable models at 90% of context. Separate from earlier card-allowed runs and optional multi-agent experiments.
Top models (higher is better)
| Model | Score |
|---|---|
| GPT-6 Astra | 76.2 |
| Claude Opus 5.5 | 71.4 |
| Claude Fable 5.1 | 57.1 |
| GPT-6 Sol | 53.3 |
| Claude Opus 5 | 45.7 |
| GPT-5.6 Sol | 44.8 |