{
 "schema": 1,
 "generated": "2026-09-27",
 "models": {
  "essence-2": {
   "fps": 25.0,
   "width": 1920,
   "height": 1080
  },
  "expression-2": {
   "fps": 20.0,
   "width": 416,
   "height": 720
  }
 },
 "method": "end-to-end audio in to frame out, one session, unpaced; the slowest of three quiet runs at least ten minutes apart on the published release",
 "page": "https://docs.bithuman.ai/performance",
 "rows": [
  {
   "id": "cloud-gpu",
   "label": "Cloud API · GPU",
   "hardware": "NVIDIA RTX 4090",
   "published": true,
   "sustained": false,
   "cells": {
    "essence-2": {
     "fps": 104,
     "x_realtime": 4.16,
     "realtime": true,
     "measured_on": "2026-09-27",
     "release": "cloud API",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": null,
     "peak_gpu_gb": null,
     "swap_gb": 1.02,
     "memory_scope": "server",
     "memory_release": null,
     "time_to_video": null
    },
    "expression-2": {
     "fps": 340,
     "x_realtime": 17.0,
     "realtime": true,
     "measured_on": "2026-09-23",
     "release": "cloud API",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": null,
     "peak_gpu_gb": null,
     "swap_gb": 0.17,
     "memory_scope": "server",
     "memory_release": null,
     "time_to_video": null
    }
   }
  },
  {
   "id": "apple-serve",
   "label": "Cloud API · Apple silicon",
   "hardware": "Apple M4 Max",
   "published": true,
   "sustained": false,
   "cells": {
    "essence-2": {
     "fps": 71,
     "x_realtime": 2.84,
     "realtime": true,
     "measured_on": "2026-09-26",
     "release": "cloud API",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": null,
     "peak_gpu_gb": null,
     "swap_gb": 0.0,
     "memory_scope": "server",
     "memory_release": null,
     "time_to_video": null
    },
    "expression-2": {
     "fps": 111,
     "x_realtime": 5.55,
     "realtime": true,
     "measured_on": "2026-09-23",
     "release": "cloud API",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": null,
     "peak_gpu_gb": null,
     "swap_gb": 0.18,
     "memory_scope": "server",
     "memory_release": null,
     "time_to_video": null
    }
   }
  },
  {
   "id": "cloud-cpu",
   "label": "Cloud API · CPU",
   "hardware": "x86 server CPU",
   "published": true,
   "sustained": false,
   "cells": {
    "essence-2": {
     "fps": 28,
     "x_realtime": 1.12,
     "realtime": true,
     "measured_on": "2026-09-25",
     "release": "cloud API",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": null,
     "peak_gpu_gb": null,
     "swap_gb": 0.0,
     "memory_scope": "server",
     "memory_release": null,
     "time_to_video": null
    },
    "expression-2": {
     "fps": 27,
     "x_realtime": 1.35,
     "realtime": true,
     "measured_on": "2026-09-24",
     "release": "cloud API",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": null,
     "peak_gpu_gb": null,
     "swap_gb": 0.0,
     "memory_scope": "server",
     "memory_release": null,
     "time_to_video": null
    }
   }
  },
  {
   "id": "macos-m4",
   "label": "macOS · CLI",
   "hardware": "Apple M4",
   "published": true,
   "sustained": false,
   "cells": {
    "essence-2": {
     "fps": 106,
     "x_realtime": 4.24,
     "realtime": true,
     "measured_on": "2026-09-27",
     "release": "CLI 2.8.1",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": 1.01,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": "render",
     "memory_release": "CLI 2.7.8",
     "time_to_video": {
      "clip_seconds": 10.0,
      "first_run_s": 3.99,
      "after_that_s": 4.85,
      "measured_on": "2026-09-26",
      "release": "CLI 2.7.8"
     }
    },
    "expression-2": {
     "fps": 168,
     "x_realtime": 8.4,
     "realtime": true,
     "measured_on": "2026-09-27",
     "release": "CLI 2.8.1",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": 0.88,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": "render",
     "memory_release": "CLI 2.7.8",
     "time_to_video": null
    }
   }
  },
  {
   "id": "python-macos",
   "label": "macOS · Python",
   "hardware": "Apple M4",
   "published": true,
   "sustained": false,
   "cells": {
    "essence-2": {
     "fps": 174,
     "x_realtime": 6.96,
     "realtime": true,
     "measured_on": "2026-09-25",
     "release": "bithuman 2.11.12",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": 1.21,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": "render",
     "memory_release": "bithuman 2.11.12",
     "time_to_video": null
    },
    "expression-2": {
     "fps": 169,
     "x_realtime": 8.45,
     "realtime": true,
     "measured_on": "2026-09-25",
     "release": "bithuman 2.11.12",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": 0.81,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": "render",
     "memory_release": "bithuman 2.11.12",
     "time_to_video": null
    }
   }
  },
  {
   "id": "macos-sdk",
   "label": "macOS · Swift package",
   "hardware": "Apple M4",
   "published": true,
   "sustained": false,
   "cells": {
    "essence-2": {
     "fps": 120,
     "x_realtime": 4.8,
     "realtime": true,
     "measured_on": "2026-09-24",
     "release": "Swift package 2.15.0",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": null,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": null,
     "memory_release": null,
     "time_to_video": null
    },
    "expression-2": {
     "fps": 177,
     "x_realtime": 8.85,
     "realtime": true,
     "measured_on": "2026-09-24",
     "release": "Swift package 2.15.0",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": null,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": null,
     "memory_release": null,
     "time_to_video": null
    }
   }
  },
  {
   "id": "linux-cpu",
   "label": "Linux · CLI",
   "hardware": "Intel Core i7-13700F (x86_64)",
   "published": true,
   "sustained": false,
   "cells": {
    "essence-2": {
     "fps": 50,
     "x_realtime": 2.0,
     "realtime": true,
     "measured_on": "2026-09-27",
     "release": "CLI 2.8.1",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": 2.18,
     "peak_gpu_gb": null,
     "swap_gb": 0.0,
     "memory_scope": "render",
     "memory_release": "CLI 2.7.8",
     "time_to_video": null
    },
    "expression-2": {
     "fps": 44,
     "x_realtime": 2.2,
     "realtime": true,
     "measured_on": "2026-09-27",
     "release": "CLI 2.8.1",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": 1.64,
     "peak_gpu_gb": null,
     "swap_gb": 0.0,
     "memory_scope": "render",
     "memory_release": "CLI 2.7.8",
     "time_to_video": null
    }
   }
  },
  {
   "id": "python-linux",
   "label": "Linux · Python",
   "hardware": "Intel Core i7-13700F (x86_64)",
   "published": true,
   "sustained": false,
   "cells": {
    "essence-2": {
     "fps": 49,
     "x_realtime": 1.96,
     "realtime": true,
     "measured_on": "2026-09-26",
     "release": "bithuman 2.11.13",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": 1.0,
     "peak_gpu_gb": null,
     "swap_gb": 0.0,
     "memory_scope": "render",
     "memory_release": "bithuman 2.11.12",
     "time_to_video": null
    },
    "expression-2": {
     "fps": 47,
     "x_realtime": 2.35,
     "realtime": true,
     "measured_on": "2026-09-26",
     "release": "bithuman 2.11.13",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": 1.5,
     "peak_gpu_gb": null,
     "swap_gb": 0.0,
     "memory_scope": "render",
     "memory_release": "bithuman 2.11.12",
     "time_to_video": null
    }
   }
  },
  {
   "id": "iphone-15",
   "label": "iPhone · Swift package",
   "hardware": "iPhone 15",
   "published": true,
   "sustained": false,
   "cells": {
    "essence-2": {
     "fps": 54,
     "x_realtime": 2.16,
     "realtime": true,
     "measured_on": "2026-09-27",
     "release": "Swift package 2.17.3",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": 0.88,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": "session",
     "memory_release": "Swift engine 1.10.0",
     "time_to_video": null
    },
    "expression-2": {
     "fps": 111,
     "x_realtime": 5.55,
     "realtime": true,
     "measured_on": "2026-09-27",
     "release": "Swift package 2.18.0",
     "clip": {
      "id": "6829-68771-0007",
      "seconds": 16.285
     },
     "peak_ram_gb": 0.49,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": "session",
     "memory_release": "Swift package 2.14.1",
     "time_to_video": null
    }
   }
  },
  {
   "id": "android-s25plus",
   "label": "Android",
   "hardware": "Samsung Galaxy S25+",
   "published": true,
   "sustained": false,
   "cells": {
    "essence-2": {
     "fps": 52,
     "x_realtime": 2.08,
     "realtime": true,
     "measured_on": "2026-09-25",
     "release": "essence2-android 0.7.0",
     "clip": {
      "id": "6829-68771-0007",
      "seconds": 16.285
     },
     "peak_ram_gb": 0.95,
     "peak_gpu_gb": null,
     "swap_gb": 0.0,
     "memory_scope": "render",
     "memory_release": "essence2-android 0.7.0",
     "time_to_video": null
    },
    "expression-2": {
     "fps": 48,
     "x_realtime": 2.4,
     "realtime": true,
     "measured_on": "2026-09-23",
     "release": "expression2-android 0.4.10",
     "clip": {
      "id": "5683-32865-0012",
      "seconds": 21.51
     },
     "peak_ram_gb": 2.31,
     "peak_gpu_gb": null,
     "swap_gb": 0.0,
     "memory_scope": "render",
     "memory_release": "expression2-android 0.5.0",
     "time_to_video": null
    }
   }
  },
  {
   "id": "web",
   "label": "Web browser (WebGPU)",
   "hardware": "Chrome on Apple M4",
   "published": true,
   "sustained": false,
   "cells": {
    "essence-2": {
     "fps": 43,
     "x_realtime": 1.72,
     "realtime": true,
     "measured_on": "2026-09-27",
     "release": "web viewer",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": 2.99,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": "render",
     "memory_metric": "Chrome tab memory footprint",
     "memory_release": null,
     "time_to_video": null
    },
    "expression-2": {
     "fps": 39,
     "x_realtime": 1.95,
     "realtime": true,
     "measured_on": "2026-09-27",
     "release": "web viewer",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": 1.75,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": "render",
     "memory_metric": "Chrome tab memory footprint",
     "memory_release": null,
     "time_to_video": null
    }
   }
  },
  {
   "id": "iphone-15-sustained",
   "label": "iPhone · Swift package · held 10 min",
   "hardware": "iPhone 15",
   "published": true,
   "sustained": true,
   "cells": {
    "essence-2": {
     "fps": 33,
     "x_realtime": 1.32,
     "realtime": true,
     "measured_on": "2026-09-25",
     "release": "Swift package 2.15.0",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": null,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": null,
     "memory_release": null,
     "time_to_video": null,
     "held": {
      "median_window_fps": 33.95,
      "worst_window_fps": 31.97,
      "sessions": 4
     }
    },
    "expression-2": {
     "fps": 103,
     "x_realtime": 5.15,
     "realtime": true,
     "measured_on": "2026-09-25",
     "release": "Swift package 2.15.0",
     "clip": {
      "id": "6829-68771-0007",
      "seconds": 16.285
     },
     "peak_ram_gb": null,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": null,
     "memory_release": null,
     "time_to_video": null,
     "held": {
      "median_window_fps": 103.85,
      "worst_window_fps": 100.27,
      "sessions": 4
     }
    }
   }
  },
  {
   "id": "android-s25plus-sustained",
   "label": "Android · held 10 min",
   "hardware": "Samsung Galaxy S25+",
   "published": true,
   "sustained": true,
   "cells": {
    "essence-2": {
     "fps": 37,
     "x_realtime": 1.48,
     "realtime": true,
     "measured_on": "2026-09-27",
     "release": "essence2-android 0.8.1",
     "clip": {
      "id": "5639-40744-0031",
      "seconds": 28.42
     },
     "peak_ram_gb": null,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": null,
     "memory_release": null,
     "time_to_video": null,
     "held": {
      "median_window_fps": 37.05,
      "worst_window_fps": 32.36,
      "sessions": 3,
      "memory": {
       "metric": "pss",
       "start_mib": 932,
       "end_mib": 927,
       "growth_mib": 0,
       "budget_mib": 92
      }
     }
    },
    "expression-2": {
     "fps": 44,
     "x_realtime": 2.2,
     "realtime": true,
     "measured_on": "2026-09-27",
     "release": "expression2-android 0.5.2",
     "clip": {
      "id": "5683-32865-0012",
      "seconds": 21.51
     },
     "peak_ram_gb": null,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": null,
     "memory_release": null,
     "time_to_video": null,
     "held": {
      "median_window_fps": 44.8,
      "worst_window_fps": 37.33,
      "sessions": 3,
      "memory": {
       "metric": "pss",
       "start_mib": 752,
       "end_mib": 785,
       "growth_mib": 34,
       "budget_mib": 75
      }
     }
    }
   }
  },
  {
   "id": "web-sustained",
   "label": "Web browser (WebGPU) · held 10 min",
   "hardware": "Chrome on Apple M4",
   "published": true,
   "sustained": true,
   "cells": {
    "essence-2": {
     "fps": 54,
     "x_realtime": 2.16,
     "realtime": true,
     "measured_on": "2026-09-27",
     "release": "web viewer",
     "clip": {
      "id": "varied1800s-heldout",
      "seconds": 1800.25
     },
     "peak_ram_gb": null,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": null,
     "memory_release": null,
     "time_to_video": null,
     "held": {
      "median_window_fps": 54.37,
      "worst_window_fps": 50,
      "sessions": 3,
      "memory": {
       "metric": "phys_footprint",
       "start_mib": 3151,
       "end_mib": 3096,
       "growth_mib": -55,
       "budget_mib": 315
      }
     }
    },
    "expression-2": {
     "fps": 41,
     "x_realtime": 2.05,
     "realtime": true,
     "measured_on": "2026-09-25",
     "release": "web viewer",
     "clip": {
      "id": "varied1800s-heldout",
      "seconds": 1800.25
     },
     "peak_ram_gb": null,
     "peak_gpu_gb": null,
     "swap_gb": null,
     "memory_scope": null,
     "memory_release": null,
     "time_to_video": null,
     "held": {
      "median_window_fps": 41.6,
      "worst_window_fps": 41.27,
      "sessions": 4
     }
    }
   }
  }
 ]
}