{
  "model_name": "Qwen3.5-397B-A17B",
  "model_organization": "Alibaba Cloud",
  "submitting_organization": "Sierra",
  "submission_date": "2026-03-02",
  "contact_info": {
    "email": "victor@sierra.ai, ben.s@sierra.ai",
    "name": "Sierra Research Team"
  },
  "is_new": false,
  "submission_type": "standard",
  "trajectories_available": true,
  "trajectory_files": {
    "airline": "qwen3.5-397b-a17b_enabled_airline_gpt-5.2_4trials.json",
    "retail": "qwen3.5-397b-a17b_enabled_retail_gpt-5.2_4trials.json",
    "telecom": "qwen3.5-397b-a17b_enabled_telecom_gpt-5.2_4trials.json",
    "banking_knowledge": "qwen3.5-397b-a17b_enabled_banking_knowledge_gpt-5.2_4trials.json"
  },
  "references": [],
  "results": {
    "airline": {
      "pass_1": 81.5,
      "pass_2": 75.67,
      "pass_3": 71.5,
      "pass_4": 68.0,
      "cost": null
    },
    "retail": {
      "pass_1": 84.43,
      "pass_2": 74.42,
      "pass_3": 66.45,
      "pass_4": 59.65,
      "cost": null
    },
    "telecom": {
      "pass_1": 97.81,
      "pass_2": 95.76,
      "pass_3": 93.86,
      "pass_4": 92.11,
      "cost": null
    },
    "banking_knowledge": {
      "pass_1": 9.79,
      "pass_2": 6.36,
      "pass_3": 5.41,
      "pass_4": 5.15,
      "cost": null,
      "retrieval_config": "text-emb-3-large"
    }
  },
  "reasoning_effort": "enabled",
  "methodology": {
    "evaluation_date": "2026-02-27",
    "tau2_bench_version": "1.0.1",
    "user_simulator": "gpt-5.2",
    "notes": "Evaluated using Qwen3.5-397B-A17B with thinking enabled. User simulator: gpt-5.2 with reasoning_effort: low. 4 trials. Seed: 300. Temperature: 1.0, top_p: 0.95. Self-hosted via vLLM. banking_knowledge re-graded under tau2-bench v1.0.1 grading fixes on 2026-07-15 (extra-read logging #329, numeric-argument normalization #397, T077-T086 gold trajectories #402); scores prior to v1.0.1 are not comparable.",
    "verification": {
      "modified_prompts": false,
      "omitted_questions": false,
      "details": "Standard tau-bench scaffold. Clean 4-trial runs with no infrastructure errors across all domains."
    }
  },
  "model_release": {
    "release_date": "2026-02-16",
    "announcement_url": "https://www.alibabacloud.com/blog/qwen3-5-towards-native-multimodal-agents_602894",
    "announcement_title": "Qwen3.5: Towards Native Multimodal Agents"
  }
}