Reflection 70B—a new large language model (LLM) based on Meta's open-source Llama 3.1-70B Instruct—was unveiled by Matt Shumer, co-founder and CEO of AI writing firm HyperWrite. It features improved performance on external benchmarks and makes use of a new error self-correction technique. This currently seems like Reflection-70B is "the world's top open-source AI model," as Shumer declared in a post on the social network X.