Vercel AI Playground tool is a collection of AI models and tools from OpenAI, Anthropic, Replicate, Huggingface, and Cohere. It allows users to quickly and easily access and use these models and tools to create AI projects and applications. It includes GPT-4 Pro, GPT-3.5 Turbo, Ada-001, Babbage-001, Curie-001, and Davinci-002 and Davinci-003 models and tools. It also provides access to various big data solutions from BigScience and Google. Users can also access and use Cohere's command-medium-nightly and command-xlarge-nightly models and tools.