v2.3 · 2026-08-09
LFM2.5 ColBERT 350M
lfm2-5-colbert-350m
LFM2.5 ColBERT 350M is a 0.353B embedding model profile for local AI planning. This page records provider, license, context, quantization, hardware-fit estimates, setup hints, source links, and caveats so readers do not choose a model by name alone.
PROVIDER
Liquid AI
FAMILY
LFM2.5
MODEL TYPE
embedding
PARAMETERS
0.353B
MODALITIES
text
ARCHITECTURE
Bidirectional late-interaction retriever with per-token vectors and MaxSim scoring
CONTEXT WINDOW
512 tokens
TRAINING TOKENS
—
RELEASE DATE
2026-06-18
GGUF REPOSITORIES
LiquidAI/LFM2.5-ColBERT-350M-GGUF official
Official GGUF repository for llama.cpp-compatible late-interaction retrieval.
SETUP HINTS
LLAMA.CPP
Use the official GGUF repository with current reranking support.RAM / VRAM ESTIMATES
MIN RAM
4 GB
COMFORTABLE RAM
8 GB
These are conservative local-inference estimates, not official hardware requirements.
HARDWARE FIT
CPU only (no GPU)
yes
8 GB RAM
comfortable
16 GB RAM
comfortable
32 GB RAM
comfortable
8 GB VRAM
not required
12 GB VRAM
not required
24 GB VRAM
not required
Apple Silicon (unified memory)
comfortable
Hardware fit values are conservative local-inference estimates based on GGUF size plus runtime and KV-cache overhead. Actual requirements depend on context length, quantization, runtime, GPU offload, and other running apps.
BEST FOR
·Multilingual retrieval where higher accuracy matters more than index size.
AVOID IF
·You need the smallest possible index or a simple single-vector embedding pipeline.
CAVEATS
·Per-token vectors create a larger index than the companion embedding model.
·The 512-token document limit requires chunking longer material.
·Vendor benchmark and latency figures have not been reproduced by LocalLLMGuide.com.
·The custom license includes a commercial-use revenue threshold.
SOURCE URLS
FIELD EVIDENCE
parameterSizeBhuggingface.co/LiquidAI/LFM2.5-ColBERT-350M
activeParametersBhuggingface.co/LiquidAI/LFM2.5-ColBERT-350M
architecturehuggingface.co/LiquidAI/LFM2.5-ColBERT-350M
contextWindowTokenshuggingface.co/LiquidAI/LFM2.5-ColBERT-350M
releaseDatewww.liquid.ai/blog/lfm2-5-retrievers
supportsToolshuggingface.co/LiquidAI/LFM2.5-ColBERT-350M
reasoningTunedhuggingface.co/LiquidAI/LFM2.5-ColBERT-350M
embeddingModelhuggingface.co/LiquidAI/LFM2.5-ColBERT-350M
visionModelhuggingface.co/LiquidAI/LFM2.5-ColBERT-350M
trainingTokens—
LANGUAGES
ArabicGermanEnglishSpanishFrenchItalianJapaneseKoreanNorwegianPortugueseSwedish
CAPABILITIES
embedding model