{
  "model_name": "GPT-4.1",
  "model_organization": "OpenAI",
  "submitting_organization": "Sierra",
  "submission_date": "2025-06-09",
  "contact_info": {
    "email": "victor@sierra.ai, ben.s@sierra.ai",
    "name": "Sierra Research Team"
  },
  "is_new": false,
  "trajectories_available": false,
  "references": [
    {
      "title": "τ²-Bench: Evaluating Conversational Agents in a Dual-Control Environment",
      "url": "https://arxiv.org/abs/2506.07982",
      "type": "paper"
    }
  ],
  "results": {
    "retail": {
      "pass_1": 74.0,
      "pass_2": 64.2,
      "pass_3": 58.1,
      "pass_4": 52.3
    },
    "airline": {
      "pass_1": 56.0,
      "pass_2": 47.8,
      "pass_3": 42.4,
      "pass_4": 38.1
    },
    "telecom": {
      "pass_1": 34.0,
      "pass_2": 27.6,
      "pass_3": 23.8,
      "pass_4": 20.4
    }
  },
  "methodology": {
    "evaluation_date": "2025-06-09",
    "tau2_bench_version": "0.1.3",
    "user_simulator": "gpt-4.1-2025-04-14",
    "notes": "Original evaluation from tau2-bench paper",
    "verification": {
      "modified_prompts": false,
      "omitted_questions": false,
      "details": "Verified evaluation with full trajectory data available"
    }
  },
  "model_release": {
    "release_date": "2025-04-14",
    "announcement_url": "https://openai.com/index/gpt-4-1/",
    "announcement_title": "Introducing GPT-4.1 in the API"
  }
}