{
  "api_version": "1",
  "updated": "2026-10-17",
  "latest_event": "2026-10-15",
  "rights": "© Frontier Log, all rights reserved.",
  "event": {
    "slug": "2026-04-24-deepseek-v4-preview",
    "date": "2026-04-24",
    "lab": "deepseek",
    "kind": "model",
    "importance": "major",
    "title": "DeepSeek V4 Preview",
    "detail": "Open V4-Pro (1.6T total, 49B active parameters) and V4-Flash models, with 1M-token context by default.",
    "tags": [
      "open-weights"
    ],
    "related": [],
    "source": "https://api-docs.deepseek.com/news/news260424/",
    "source_title": "DeepSeek V4 Preview Release",
    "source_archived": null,
    "source_http_status": null,
    "url": "https://frontierlog.ai/event/2026-04-24-deepseek-v4-preview",
    "image": "https://frontierlog.ai/og/2026-04-24-deepseek-v4-preview.png",
    "models": [
      {
        "slug": "deepseek-v4-pro",
        "name": "DeepSeek-V4-Pro",
        "lab": "deepseek",
        "date": "2026-04-24",
        "flagship": false,
        "event": "https://frontierlog.ai/event/2026-04-24-deepseek-v4-preview",
        "results": [
          {
            "id": "deepseek-v4-pro:swe-bench-verified:default:1",
            "model": "deepseek-v4-pro",
            "model_name": "DeepSeek-V4-Pro",
            "model_date": "2026-04-24",
            "event": "https://frontierlog.ai/event/2026-04-24-deepseek-v4-preview",
            "benchmark": "swe-bench-verified",
            "benchmark_name": "SWE-bench Verified",
            "setting": "default",
            "setting_name": "",
            "score": 80.6,
            "unit": "%",
            "printed": "80.6",
            "reported_by": "deepseek",
            "label": "DS-V4-Pro Max",
            "source": "https://api-docs.deepseek.com/news/news260424/",
            "source_title": "DeepSeek V4 Preview Release",
            "source_date": "2026-04-24",
            "where": "benchmark table image, row 'SWE Verified (Resolved)', column 'DS-V4-Pro Max'",
            "own": true,
            "primary": true,
            "parallel": false,
            "notes": "Max reasoning effort",
            "human_verified": true,
            "human_verified_on": "2026-10-17",
            "source_image": "https://frontierlog.ai/sources/9226203de8e24b33.png",
            "source_image_original": "https://api-docs.deepseek.com/img/v4-benchmark-2.png"
          },
          {
            "id": "deepseek-v4-pro:gpqa-diamond:default:1",
            "model": "deepseek-v4-pro",
            "model_name": "DeepSeek-V4-Pro",
            "model_date": "2026-04-24",
            "event": "https://frontierlog.ai/event/2026-04-24-deepseek-v4-preview",
            "benchmark": "gpqa-diamond",
            "benchmark_name": "GPQA Diamond",
            "setting": "default",
            "setting_name": "",
            "score": 90.1,
            "unit": "%",
            "printed": "90.1",
            "reported_by": "deepseek",
            "label": "DS-V4-Pro Max",
            "source": "https://api-docs.deepseek.com/news/news260424/",
            "source_title": "DeepSeek V4 Preview Release",
            "source_date": "2026-04-24",
            "where": "benchmark table image, row 'GPQA Diamond (Pass@1)', column 'DS-V4-Pro Max'",
            "own": true,
            "primary": true,
            "parallel": false,
            "notes": "Max reasoning effort",
            "human_verified": true,
            "human_verified_on": "2026-10-17",
            "source_image": "https://frontierlog.ai/sources/9226203de8e24b33.png",
            "source_image_original": "https://api-docs.deepseek.com/img/v4-benchmark-2.png"
          }
        ]
      }
    ]
  }
}