Kimi K2 made waves on release for scoring competitively with top proprietary models on agentic and tool-calling benchmarks while shipping as open weights — a combination that wasn't common before it. Its size (a large mixture-of-experts model) means realistic local hosting usually needs serious hardware or a quantized version; Ollama's quantized builds make it approachable on more modest setups. It's newer than Llama or Qwen, so its ecosystem of fine-tunes and community tooling is still catching up.