Casper Hansen

it's called user experience and moonshot ai perfectly said it in their kimi k3 release. it's the feel of interacting with the model, e.g. h...

I tried DeepSeek's harness desktop app this week. The model side is promising, but the app itself still feels a step behind Cursor's Agents ...

thousands of environments are cooked... this is why open-source should be the default. when you open something up, it lets the world audit ...

Microsoft is launching Surface Spark with Nvidia Honestly an odd form factor and it's $6k for 128GB

Red flags are going off all over the place recently. The speed-maxing obsession has to come to an end. Quality is what defines a model. Th...

Opus 5.5 is the first time I feel comfortable turning down the reasoning knob from Max to High. The acceleration from less reasoning while b...

Inference is more like 80% total if you count inference during post-training https://twitter.com/socialcapital/status/2107239666781208693

you can build something like Bonsai 2 for ~$43k. you too could be like @PrismML, you just need one on-demand B300 node for ~4 weeks. i wrot...

Kimi K2.5-2.7 can be trained with RL on just 16 B300 GPUs (yes, just 2 nodes!) with full context Most post-training frameworks out there wi...

would love to see a Qwen4 27B with 100B+ Engram that offloads to RAM + NVMe runs on small VRAM but has the world knowledge of a big MoE lo...

everyone's complaining karpathy went to anthropic, meanwhile opus 5.5 is one of a kind tips and tricks posts are nice but i want claude to ...

claudeish is absolutely diabolical. happy to see it gone and outperform fable 5.1 at the same time. the question is: will it feel like fabl...

NEVER thought i would hear this from jeff dean he thinks we can compress chip design from 2 years to 3 months with RL + new EDA tooling es...

deepseek v4.1 flash is kind of crazy in 1 month they managed a new architecture, a new pretrain, and significantly scaled RL training agai...

People want Claude at home. The reality is that this is not it. Bring those long-horizon agent benchmarks up towards 98% in v3 please! > He...

this is not to shit on prism, but it's become apparent that we can't trust benchmark scores. while this may <appear> to retain most of the ...

NAND is about to have its DRAM moment. Let me explain. In-memory parameter scaling is saturating because HBM capacity is hitting a wall wh...

Europe is making a comeback? Quasar 438B is ahead of Thinking Machines and Nvidia https://x.com/casper_hansen_/status/2095105968501563688/p...

TLDR; post-training can escape the pre-training ceiling if you have a dense reward system. a reward of either 1 or 0 is quite bad, and a re...

Kind of tough to compete with the existing RLaaS from Tinker or Fireworks Your offering also has to be an order of magnitude better if you ...