Agent Arena - Tool Hallucination: leaderboard
Metric: Tool Hallucination (%). Source: arena.ai. 58 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | GPT-5.5 | -0.86 |
| 2 | Claude Opus 4.6 | -0.86 |
| 3 | Kimi K2.6 | -0.86 |
| 4 | Grok 4.5 | -0.86 |
| 5 | GPT-5.5 (xHigh) | -0.86 |
| 6 | GLM-5.3 Flash | -0.86 |
| 7 | Kimi K2.7 Code | -0.86 |
| 8 | GPT-5.5 (High) | -0.86 |
| 9 | GLM-5.2 (Max) | -0.86 |
| 10 | Kimi K3 (Max) | -0.86 |
| 11 | GPT-5.6 Sol (xHigh) | -0.86 |
| 12 | GPT-5.6 Terra (xHigh) | -0.86 |
| 13 | GPT-5.4 (High) | -0.86 |
| 14 | GLM-5.3 (Max) | -0.86 |
| 15 | GPT-5.6 Luna (xHigh) | -0.86 |
Interactive version: theaggregate.ai/benchmark?slug=agent-arena-tool-hallucination · How It Works · Data refreshed daily, snapshot 2026-09-05.