LLMilestonesA milestone timeline of AI and large language models

Act V · Reasoning and agents

Open modelMeta

Llama 4

Meta's first MoE Llama, released as Scout and Maverick.

Why it matters

A turning point for the open-source flag-bearer; it is generally held that influence in open source then shifted toward Chinese teams.

Costs and controversy

The version submitted to a leaderboard was a specially tuned experimental build, and the benchmark-gaming controversy hurt its reputation.

Built on

Llama 3

Led to

Muse Spark

Source: ai.meta.com ↗

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