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Head-to-Head

OpenAI vs Meta AI

Closed-weights frontier vs open-weights frontier - arguably the defining strategic split of the modern AI industry.

DimensionOpenAIMeta AI
Release strategyClosed weights, API-only.Open weights through Llama 3 / 4.
Business modelAPI revenue, ChatGPT subscriptions, Microsoft tie-up.AI as infrastructure for Meta's ad business and Reality Labs.
EcosystemGPT Store, Assistants API.Llama on every major cloud; powers the open fine-tuning economy.
HardwareMicrosoft-managed GPUs.Meta's own MTIA accelerators in addition to Nvidia.

Verdict

If frontier capability remains scarce, OpenAI wins; if open weights catch up, Meta wins - by commoditising the model layer entirely.

Profile: OpenAI

Capped-profit frontier lab that defined the generative AI era with the GPT series.

Profile: Meta AI

Meta's open-weights frontier program - the home of Llama and FAIR.

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