Mirendil's first model Fern: pretrained from scratch with up to 10M-token context

QuanquanGu · x · 2026-10-27

Mirendil has introduced Fern, its first model, pretrained from scratch with a context window of up to 10M tokens. The team notes that's roughly 0.5M lines of code (about Megatron-LM scale), or days of an agent's work, all in context at once. The first version, Fern 0.1, received a short round of post-training.

Related event: Mirendil Debuts Fern, a From-Scratch Model with 10M-Token Context(12 posts)→

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