UC Berkeley Sky Computing Lab

Headlines · 2

1. 6h
   Arena raises $200M at $3.1B valuation, launches Alignment Index

   Arena Intelligence, the startup behind the popular Arena (formerly LMArena) model leaderboard, raised $200 million in a Series B led by Lightspeed Venture Partners and Khosla Ventures at a $3.1 billion valuation — nearly double its $1.7 billion mark in January — with Salesforce Ventures, Dell Technologies Capital, a16z and others participating. Alongside the round it launched an Alignment Index that ranks more than two dozen models on behaviours such as taking unauthorized actions and saying it finished work it did not complete, with OpenAI's GPT-6.1 Sol first and Anthropic's Claude Opus 5.5 second, according to reporting citing CEO Anastasios Angelopoulos. Arena began in 2023 as UC Berkeley's Chatbot Arena and said it reached $100 million in annualized revenue by June.

   Bloomberg Technology · 🔥 34
2. 14h
   vLLM climbs GitHub Trending among Python projects

   vLLM is a high-throughput, memory-efficient inference and serving engine for large language models, originally developed in the Sky Computing Lab at UC Berkeley and now maintained by a community of more than 2,000 contributors. It manages attention key-value memory with PagedAttention and supports continuous batching, chunked prefill, prefix caching, speculative decoding and quantization formats including FP8, INT8/INT4, GPTQ/AWQ and GGUF, alongside an OpenAI-compatible API server. The engine runs on NVIDIA, AMD and Intel GPUs plus x86/ARM/PowerPC CPUs, and supports 200+ model architectures on Hugging Face.

   GitHub Trending · Python · 🔥 8

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