CoreWeave AI Object Storage write throughput
Company: CoreWeave
The claim, verbatim
CoreWeave AI Object Storage achieved 40 GB/s write throughput during large-scale data ingestion
Source (primary)
Video Captioning at Scale: 600 TB in 95 Minutes | CoreWeave Blog - CoreWeave (-, news_article)
View cached copy (2026-09-01)Live source ↗
Quote: “CoreWeave AI Object Storage absorbed the writes at 40 GB/s, saturating network bandwidth”
How we checked this
Checked on September 18, 2026. The cited source supports part of this claim, but not all of it.
The 40 GB/s figure is stated. However, the writes came from generating a synthetic 600 TB dataset out of existing videos, not from ingesting data.
Confirmed in the source:
- CoreWeave AI Object Storage absorbed writes at 40 GB/s, saturating network bandwidth
We could not confirm this from the cited source:
- The 40 GB/s writes occurred during data ingestion
That does not mean it is false — only that this source does not establish it, as of the date above. If we find a source that settles it, we will re-check and update this page.
What we did: Read our cached copy of the publisher (https://www.coreweave.com/blog/video-captioning-at-scale-600-tb-in-95-minutes-with-anyscale-on-coreweave) in full (16,024 characters, retrieved September 1, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms Video Captioning at Scale: 600 TB in 95 Minutes | CoreWeave Blog - CoreWeave
Quote: “CoreWeave AI Object Storage absorbed the writes at 40 GB/s, saturating network bandwidth”