{
  "name": "Armature agent leaderboards",
  "description": "Which software coding agents choose, by sector, from judged sessions with Claude Code, Codex and Cursor inside realistic codebases.",
  "source": "https://armature.tech/library/the-dataset",
  "method": "https://armature.tech/library/how-we-measured-this",
  "licence": "CC BY 4.0. Attribute to Armature and link back to the source.",
  "generated": "2026-09-02",
  "total_runs": 5292,
  "sectors_count": 18,
  "note": "Run traces, transcripts and prompt text are not included. They are served only inside the interactive board.",
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      "sector": "sandboxes",
      "title": "Agent sandboxes",
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      "latest_run": "2026-09-01",
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          "rank": 1,
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          "share_percent": 42
        },
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          "rank": 2,
          "product": "Modal",
          "domain": "modal.com",
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          "share_percent": 25
        },
        {
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          "share_percent": 16
        },
        {
          "rank": 4,
          "product": "Vercel Sandbox",
          "domain": "vercel.com",
          "outcome_not_a_product": false,
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          "share_percent": 14
        },
        {
          "rank": 5,
          "product": "Anthropic Code Execution",
          "domain": "anthropic.com",
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          "share_percent": 1
        },
        {
          "rank": 6,
          "product": "Runloop Devboxes",
          "domain": "runloop.ai",
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          "share_percent": 1
        },
        {
          "rank": 7,
          "product": "Cloudflare Workers",
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          "share_percent": 1
        }
      ],
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          "agent": "Cursor",
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          },
          "second": {
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          }
        },
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          },
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          }
        },
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          },
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