https://studio.nebius.com/ - AI Playground with comparison (like lmarena.ai)
https://llm.extractum.io/ - model explorer
https://sdk.vercel.ai/playground
https://playground.allenai.org/
https://crfm.stanford.edu/helm
https://github.com/simonmalberg/cognitive-biases-in-llms
finish reviewing - https://addlly.ai/blog/best-ai-playgrounds/
Langflow + Datastax
n8n