{
  "slug": "esm2",
  "name": "ESM-2",
  "kind": "other",
  "publisher": "Meta AI (FAIR)",
  "tier": "verified",
  "license_code": {
    "status": "permissive",
    "spdx": "MIT",
    "custom_license": false,
    "commercial_use": "yes",
    "derivatives": "yes",
    "redistribution": "yes",
    "license_conditions": [
      "notice-required"
    ],
    "requires_application": false,
    "evidence": [
      {
        "location": "repo-license",
        "excerpt": "MIT License",
        "url": "https://raw.githubusercontent.com/facebookresearch/esm/main/LICENSE",
        "snapshot_id": "s03",
        "char_start": 0,
        "verified_on": "2026-11-13",
        "observed": "page",
        "captured_by": "pipeline"
      }
    ]
  },
  "license_weights": {
    "status": "permissive",
    "spdx": "MIT",
    "custom_license": false,
    "commercial_use": "yes",
    "derivatives": "yes",
    "redistribution": "yes",
    "license_conditions": [
      "notice-required"
    ],
    "requires_application": false,
    "evidence": [
      {
        "location": "dataset-page",
        "excerpt": "License: mit",
        "url": "https://huggingface.co/facebook/esm2_t33_650M_UR50D",
        "snapshot_id": "s01",
        "char_start": 2992,
        "verified_on": "2026-11-13",
        "observed": "page",
        "captured_by": "pipeline"
      }
    ]
  },
  "last_verified": "2026-11-14",
  "schema_version": "2.0",
  "record_type": "model",
  "official_urls": {
    "repository_or_release": "https://github.com/facebookresearch/esm",
    "weights_page": "https://huggingface.co/facebook/esm2_t33_650M_UR50D",
    "paper": null,
    "license_file": "https://raw.githubusercontent.com/facebookresearch/esm/main/LICENSE"
  },
  "version_history": [
    {
      "version": "ESM-2",
      "released_on": null,
      "code_license": "MIT",
      "weights_license": "MIT",
      "changed": "first-release",
      "note": null,
      "evidence": [
        {
          "location": "readme",
          "excerpt": "- August 2022: ESM-2 - new SOTA Language Models released (see [Lin et al. 2022](https://www.science.org/doi/abs/10.1126/science.ade2574))",
          "url": "https://raw.githubusercontent.com/facebookresearch/esm/HEAD/README.md",
          "snapshot_id": "s04",
          "char_start": 5888,
          "verified_on": "2026-11-13",
          "observed": "page",
          "captured_by": "pipeline"
        }
      ]
    }
  ],
  "output_restrictions": [],
  "training_data": [
    {
      "resource": "UR50 (sample UR90)",
      "slug": null,
      "role": "pretraining",
      "cutoff_date": null,
      "cutoff_stated": false,
      "statement": {
        "text": {
          "en": "The repository page lists ESM-2 checkpoints esm2_t36_3B_UR50D and esm2_t48_15B_UR50D together with the entry UR50 (sample UR90).",
          "zh": "仓库页面将 ESM-2 检查点 esm2_t36_3B_UR50D 与 esm2_t48_15B_UR50D 同条目 UR50 (sample UR90) 列在一起。"
        },
        "evidence": [
          {
            "location": "readme",
            "excerpt": "ESM-2 esm2_t36_3B_UR50D() esm2_t48_15B_UR50D() UR50 (sample UR90)",
            "url": "https://github.com/facebookresearch/esm",
            "snapshot_id": "s06",
            "char_start": 8695,
            "verified_on": "2026-11-13",
            "observed": "page",
            "captured_by": "pipeline"
          }
        ]
      }
    }
  ],
  "benchmark_overlap": [],
  "access": [
    {
      "method": "open-weights-download",
      "url": "https://huggingface.co/facebook/esm2_t33_650M_UR50D",
      "terms_differ_from_weights_license": false,
      "own_terms": null
    }
  ],
  "conflicts": [],
  "gaps": [
    {
      "field": "output_restrictions",
      "note": "未找到有出处的说明 / no sourced statement found"
    },
    {
      "field": "benchmark_overlap",
      "note": "未找到有出处的说明 / no sourced statement found"
    },
    {
      "field": "known_defects",
      "note": "未找到有出处的说明 / no sourced statement found"
    }
  ],
  "completeness": {
    "core_complete": true
  },
  "changelog": [
    {
      "date": "2026-11-14",
      "change": {
        "en": "Added by the automated pipeline from stored page snapshots; every statement carries a verbatim quote.",
        "zh": "由自动流水线根据已存页面快照添加，每条陈述带逐字引文。"
      },
      "by": "pipeline"
    }
  ],
  "access_recipe": {
    "verified_on": "2026-11-14",
    "latest_release": null,
    "files": [],
    "api": [],
    "registration": null,
    "bulk_download": [],
    "gaps": [
      "no direct file address was found on the official pages we hold",
      "no latest release/version stated on the pages we hold",
      "the official pages we hold publish no checksum for the files; none was computed (we do not download data files)"
    ],
    "license_note": {
      "license_status": "permissive",
      "text": "Use according to the terms of the official source; this recipe does not say the data can be used freely."
    }
  },
  "_links": {
    "text": "在本库继续查找。本条目是 109 条已处理并核实的记录之一（数据集、数据资源与开源模型）。查找其他条目：调用 `https://mcp.mdexa.com/v1/datasets?q=<关键词>`，或连接 MCP 服务 `https://mcp.mdexa.com/mcp`；每分钟 20 次以内无需密钥。每行返回不到 1 KB；空结果即\"数据库未收录\"。核对一份清单：一次批量核对（免费账号）即返回报告。说明：/agents.md。相似条目：ESMFold (https://mdexa.com/zh/models/esmfold/)；Evo 2 (https://mdexa.com/zh/models/evo2/)；AlphaFold 3 (https://mdexa.com/zh/models/alphafold3/)。",
    "records": 109,
    "search": {
      "template": "https://mcp.mdexa.com/v1/datasets?q={words}",
      "example": "https://mcp.mdexa.com/v1/datasets?q=%E7%BB%93%E5%90%88%E4%BA%B2%E5%92%8C%E5%8A%9B"
    },
    "mcp": "https://mcp.mdexa.com/mcp",
    "anonymous_calls_per_minute": 20,
    "guide": "https://mdexa.com/zh/agents.md",
    "faq": "https://mdexa.com/zh/developers/faq/",
    "similar": [
      {
        "name": "ESMFold",
        "url": "https://mdexa.com/zh/models/esmfold/",
        "json": "https://mdexa.com/zh/models/esmfold.json"
      },
      {
        "name": "Evo 2",
        "url": "https://mdexa.com/zh/models/evo2/",
        "json": "https://mdexa.com/zh/models/evo2.json"
      },
      {
        "name": "AlphaFold 3",
        "url": "https://mdexa.com/zh/models/alphafold3/",
        "json": "https://mdexa.com/zh/models/alphafold3.json"
      }
    ]
  }
}