Allen Institute for AI releases ‘truly open source’ LLM to drive ‘critical shift’ in AI development

Key Points:

  • Introduction of OLMo, an open-source language model by AI2, marks a critical shift in AI development and provides transparency in AI research.
  • Open source AI, including OLMo, is challenging closed, proprietary models and is receiving praise from industry experts.
  • While making significant progress, open source AI faces ongoing criticism and concerns about its potential risks.


The Allen Institute for AI (AI2) has introduced OLMo, an open-source language model, including the model code, weights, training data, and associated toolkits, under the Apache 2.0 License. This move is seen as a significant step in driving AI development and providing transparency in AI research.


Open source AI, including OLMo, is gaining traction, challenging closed, proprietary large language models (LLMs) from companies like OpenAI and Meta, and attracting praise from industry experts, including Meta’s chief scientist Yann LeCun.


Despite its progress, open source AI continues to face criticism from some researchers, regulators, and policymakers, who raise concerns about its potential dangers.



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