{ "model_name": "Muse Spark 1.1", "model_organization": "Meta", "submitting_organization": "Sierra", "submission_date": "2026-08-04", "submission_type": "standard", "modality": "text", "contact_info": { "email": "ben.s@sierra.ai", "name": "Sierra Research Team" }, "results": { "airline": null, "retail": null, "telecom": null, "banking_knowledge": { "pass_1": 40.4639175257732, "pass_2": 29.55326460481099, "pass_3": 23.969072164948454, "pass_4": 20.618556701030926, "cost": null, "retrieval_config": "alltools" } }, "is_new": true, "trajectories_available": true, "trajectory_files": { "banking_knowledge": "banking_knowledge_results.json" }, "references": [], "reasoning_effort": "xhigh", "methodology": { "evaluation_date": "2026-07-23", "tau2_bench_version": "1.0.1", "user_simulator": "gpt-5.2", "notes": "Banking_knowledge evaluation with AllTools retrieval, GPT-5.2 low-reasoning user simulation, four trials, and seed 300.", "verification": { "modified_prompts": false, "omitted_questions": false } }, "model_release": { "release_date": "2026-07-09", "announcement_url": "https://ai.meta.com/blog/introducing-muse-spark-meta-model-api/", "announcement_title": "Introducing Muse Spark 1.1" } }