private transfer
send 4K privately.
no server. no fee per gigabyte.
- 207 ×: Smaller than the ProRes 422 HQ master, as ñü.media207207×
- 3 min: To send an hour of 4K at 50 Mbit/s33min
- $0: Per gigabyte, at any size$00
- 0: People who can see who sent what to whom00
Benchmark on the same 4K NASA clip: nu.media at its best measured point, VMAF 63 on iPhone Air, against ProRes 422 HQ at VMAF 100. Transfer time is a projection from the stream speed shown.
End to end through your own devices and the network’s nodes, at the camera’s native resolution.
- avid DNxHR SQ Mac, ffmpeg578 Mbit/s 260 GB/h · VMAF 100
- Apple ProRes 4444 Mac, ffmpeg531 Mbit/s 239 GB/h · VMAF 100
- Apple ProRes 422 HQ Mac, ffmpeg450 Mbit/s 202 GB/h · VMAF 100
- Apple ProRes 422 Mac, ffmpeg381 Mbit/s 171 GB/h · VMAF 100
- Apple ProRes 422 LT Mac, ffmpeg284 Mbit/s 128 GB/h · VMAF 100
- avid DNxHR LB Mac, ffmpeg180 Mbit/s 81 GB/h · VMAF 100
- Apple ProRes 422 proxy Mac, ffmpeg114 Mbit/s 51 GB/h · VMAF 99
- AV1, real time best measured point4.2 Mbit/s 1.9 GB/h · VMAF 92
- h.265 (HEVC), iPhone hardware best measured point2.8 Mbit/s 1.3 GB/h · VMAF 65
- ñü.media, measured benchmark, iPhone Air2.2 Mbit/s 1.0 GB/h · VMAF 63
ProRes and DNxHR are editing formats: near-perfect quality (VMAF 99 and up here) at hundreds of megabits per second. Every row is a benchmark on the same 4K clip; nu.media is measured on iPhone Air. khėnsu.ñü doesn’t carry camera RAW.
- dropbox ProRes 422 HQ master, 202 GB5.4 hUpload at 100 Mbit/s, then download at 500 Mbit/s. Dropbox holds the file and the keys; it knows who sent what to whom.
- IBM aspera ProRes 422 HQ master, 202 GB27 minFASP at line rate, 1 Gbit/s at both ends. Encrypted in transit; the server operator holds the file and sees who sent it.
- khėnsu.ñü, bit-exact the same master, 202 GB9.0 hConstant stream through your own node, 50 Mbit/s. Nobody: end to end, and no one sees the sender, the recipient or the file name.
- khėnsu.ñü, ñü.media ñü.media at its best measured point (VMAF 63), 1.0 GB3 minSame stream; the file is 207× smaller. Nobody, the same as above.
Assumptions: a 100 Mbit/s upload and 500 Mbit/s download for Dropbox, 1 Gbit/s at both ends for Aspera, and a 50 Mbit/s constant stream through your own khėnsu node. The mix network adds a few seconds of delay at the start, not per byte. Sending the exact same bytes is not faster than Aspera on a fast line: the gain comes from sending the picture in nu.media at native resolution instead of the editing master. Free on khėnsu.ñü: there is no per-gigabyte fee.
See it for yourself
about 7× less data than YouTube’s 4K stream.so it arrives about 7× faster and costs about 7× less to deliver.
- 7× smallerthan YouTube’s 4K stream, measured
- 7× fasterto arrive on the same connection
- 7× cheaperto deliver, per view
- VMAF 63benchmark; H.265 scores 65 at the same bitrate
Whole 4K frames, encoded on an iPhone Air. One side is always the original or nu.media.
original NASA · 3840 × 2160 · 16 mbit/s
ñü.media 1920 × 1080 sent, rebuilt to 3840 × 2160 · 2.2 mbit/s · VMAF 63
how it compares
| khėnsu.ñü | Dropbox | IBM Aspera | |
|---|---|---|---|
| Who can open the file | Only the people you send it to | Dropbox holds the keys | The server operator, unless client-side encryption is set up |
| Who sees sender and recipient | Nobody: it travels through the mix network | Dropbox | The server operator |
| Where the file waits | Your own node, or encrypted chunks spread across nodes | Dropbox’s servers | Aspera or cloud storage servers |
| Video size | nu.media at native resolution, or the exact original bytes | The original bytes | The original bytes |
| Cost per gigabyte | Free | Plan limits | Paid |
Sending the exact same bytes is not faster than Aspera on a fast line; Aspera is built for line rate. khėnsu.ñü is faster when the video goes as nu.media instead of the editing master, because there is far less to send. Camera RAW isn’t supported: video travels at native resolution in nu.media, or bit-exact as the original file.