CoreWeave is The Essential Cloud for AI. Built for pioneers by pioneers. Trusted by 9 of the 10 leading AI labs.
United States
Joined March 2018
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CoreWeave retweeted
@TheCodingSoup wanted to see how AI agents talk to each other when they work as a team.
So he gave a swarm a shared memory and let them do their thing inside of a @CoreWeave Sandbox. They wrote 12 notes. Not one got read by another agent. (Every agent was traced in Agent Lens, so we could check.)
The next run changed the timing: leads shared plans before starting, and each new agent got the relevant notes with its task. No duplicated experiments that time.
Try out Agent Lens bit.ly/4z4ELRf
CoreWeave retweeted
Karpathy got annoyed with YouTube recs and built HackerTube in a weekend. Yours was probably manually lining up logged images to check a single detection.
New in Weights & Biases Models: zoom or pan one image and the rest follow at the same zoom level and position. Bounding boxes, masks, and class labels move with their images.
It's on by default, so the cropped screenshots can retire. crwv.co/uurrz
CoreWeave retweeted
In collaboration with CoreWeave, we show how our autonomous system optimizes LLM inference end to end, from engine configuration to custom GPU kernels: up to 63% more traffic for GLM-5.3, 2x per-user throughput for Qwen3.8-27B, and 10% more throughput for DeepSeek V4.1 Flash. 🔗
CoreWeave retweeted
New Paper: Subliminal Learning doesn’t need a shared base model 🤯.
We show how a “teacher’s” hidden animal preferences reaches the “student” even when both differ in weight initialization, data order, pretraining corpus or even architectures! 🧵
CoreWeave retweeted
nice try
we spun up 10 THOUSAND sandboxes, @opencode running in each one pointing towards our serverless inference endpoint to get ASCII art
I'm feeling like an artist today
CoreWeave Scale
nice try
we spun up 700 boat.dev VMs 4c x 8gb, started codex + minecraft, made it all play in multiplayer together
they all booted from a snapshot in the first 10s, which cost $0.07, same price per VM, core & ram
but much more impressive capabilities and scale
CoreWeave retweeted
iPhone Duo is out today, and Weights & Biases Models already supports 2-fold validation 📲
Folded, the cover screen tells you the run is still alive.
Unfold it, and your runs sit next to your panels on the big inner screen.
Hide a run, and every chart redraws right away, making the one that spiked much easier to find.
The app is free and ready for your Duo on day one. crwv.co/ut17n
CoreWeave retweeted
During @reflection_ai’s private preview of Beam, I built a haunted escape room to put its coding and reasoning to the test.
I created a game called “Code Your Way Out”, and it's one room with three linked puzzles. Beam has to repair a brass orrery by lining its rings up with a constellation, route the light, then program its escape through a sealed hatch.
Beam never sees the room. Each turn, it gets text observations and writes Python; the code runs in a @CoreWeave Sandbox, and the game engine validates every action before the explorer robot moves.
Beam was out in about 30 seconds. Super bullish on this model and really excited to see builders get this model in their hands.
CoreWeave retweeted
Taking the stage at @TomorrowXSummit: Brannin McBee (@BranninMcBee), Co-Founder and Chief Development Officer of CoreWeave (@CoreWeave) $CRWV.
November 17-18 at the Moody Center in Austin. Hosted with @GavinSBaker and @atreidesmgmt, @antoniogracias and Valor Equity Partners, @rbiscardi and @iconnections_io.
Registration link below.
CoreWeave retweeted
Gave an AI five functions and a tiny island.
It walked into a hole.
Now it has to collect the gems, build the bridge, and reach the portal.
Running on @CoreWeave Sandbox: one deploy script, a public endpoint, set to stay up for 30 days.
8765-aec58cb9-9d65-4e5e-ace7…
Which model would you try? 👇
CoreWeave retweeted
We’re a few years in and no one has cracked the “PMs building scorers” workflow.
Annotation is noisy, defining good is hard, PMs are busy
Excited with what @CoreWeave has cooking here!
Lmk if you have a working agent and want to make it better/cheaper on open models
CoreWeave retweeted
Marin 535B-A23B is halfway through its hero run, and the heldout loss is doing what the forecast said it would.
The team built that forecast from four smaller runs before the big one started. Since then, better kernels have taken MFU from 21% to 27%.
It's fully open, built by @percyliang and the Marin Community team, and it trains on @CoreWeave with every change logged in wandb.
True builders will get more from this run's change log than from the finished model's benchmarks.
Pull up a seat to the show here: forge.coreweave.com/wandb/ma…
CoreWeave retweeted
Submit this form if you'd like to use Serverless GPU Sandboxes!
forms.gle/QQ1tF8NtaMPqa9eP9
CoreWeave retweeted
a robot made me a hat & hardly scared me at all
@CoreWeave. 🤖🧢 #SFTechWeek
CoreWeave retweeted
How is Vera Rubin performing for CoreWeave customers?
.@CoreWeave EVP Chen Goldberg points to Cognition’s experience:
“They've seen an improvement compared to the Blackwell architecture.”
CoreWeave retweeted
Tell me you're in SF without telling me you're in SF.
@CoreWeave conf after party feat @pitbull at Moscone Center