Model Index

Twenty-two models across three families, hosted on Hugging Face. All are Apache 2.0 except Lucy-2, which is research-only because its training data is. Base models continue text and do not follow instructions. Instruct models are finetuned for conversation. GGUF builds are quantized for llama.cpp.

Boris 2 — preview, latest

ModelTypeParamsReleased
Boris-2-Preview-2Base, preview143.7M2026.10.21
Boris-2-Preview-1Base, preview143.7M2026.10.09

Checkpoints from the Boris-2 run, which continues to 200B tokens, each with a short learning-rate decay applied. Custom architecture: load with trust_remote_code=True. See Boris.

Boris 1.7

ModelTypeParamsReleased
Boris-1.7-D60M-n30MBase, research60M dense + 30M n-gram2026.08.31

A dense trunk with a 30M-parameter n-gram lookup table spliced into the residual stream. One experiment, one variable — see Boris.

Boris 1.3

ModelTypeParamsReleased
Boris-1.3-125MBase125M2026.07.31
Boris-1.3-125M-InstructInstruct125M2026.08.01
Boris-1.3-125M-Instruct-GGUFGGUF125M2026.08.01
Boris-1.3-75MBase77.4M2026.07.26
Boris-1.3-75M-InstructInstruct77.4M2026.07.26
Boris-1.3-75M-Instruct-GGUFGGUF77.4M2026.07.26

Boris 1.0 — original release

ModelTypeParamsReleased
Boris-250MBase250M2026.07.23
Boris-250M-InstructInstruct250M2026.07.23
Boris-250M-Instruct-GGUFGGUF250M2026.07.23
Boris-125MBase125M2026.07.15
Boris-125M-InstructInstruct125M2026.07.15
Boris-125M-Instruct-GGUFGGUF125M2026.07.23
Boris-75MBase77.4M2026.07.18
Boris-75M-InstructInstruct77.4M2026.07.18
Boris-75M-Instruct-GGUFGGUF77.4M2026.07.23

Lucy — image models

ModelTypeParamsReleased
Lucy-2Text to image (research only)112.5M2026.08.12
LucyUnconditional faces71.4M2026.08.09

littlerock

ModelTypeParamsReleased
littlerock-1MBase1,002,7202026.08.07
littlerock-1M-arithmaxResearch artifact1,002,7202026.08.07

Which one should you use? For conversation at the best quality we currently offer, take Boris-1.3-125M-Instruct. For text continuation, take Boris-2-Preview-2, the strongest base model we have published — a research preview with custom modeling code and, so far, no instruct or GGUF build. For a plain GPT-2 checkpoint to finetune, take Boris-1.3-125M. For CPU-only or embedded use, take a GGUF build. For scaling research at the smallest end, take littlerock-1M. For images, take Lucy or Lucy-2. Boris-1.7 is an architecture experiment rather than a general-purpose upgrade — take it if the n-gram table is what interests you, not if you want the best text quality we ship.