Model library / LiquidAI
LFM2.5-2.6B is a 2.7B open-weight model published by LiquidAI on Hugging Face. It uses the Lfm2ForCausalLM architecture with 30 layers. The published configuration allows a context of 131,072 tokens. The weights are released under the other licence.
Parameters in total
Context length in tokens, as published
Weights at the released precision
Licence declared on the repository
Overview
LFM2.5-2.6B is a 2.7B open-weight model published by LiquidAI on Hugging Face. It uses the Lfm2ForCausalLM architecture with 30 layers. The published configuration allows a context of 131,072 tokens. The weights are released under the other licence.
At the released precision the weights occupy about 5 GiB, before any key-value cache. That fits on a single RTX 4090 24GB. The tables below work the memory out for common cards.
Specification
| Repository | LiquidAI/LFM2.5-2.6B |
| Publisher | LiquidAI |
| Published | 29 July 2026 |
| Architecture | Lfm2ForCausalLM |
| Model type | lfm2 |
| Parameters | 2,697,198,592 |
| Layers | 30 |
| Hidden size | 2,048 |
| Attention heads | 32, 8 key/value heads |
| Context length | 131,072 tokens |
| Vocabulary | 128,000 tokens |
| Weight format | bfloat16 |
| Licence | other |
| Base model | LiquidAI/LFM2.5-2.6B-Base |
Memory
Parameter count multiplied by the bytes each format uses. The key-value cache comes on top.
| Precision | Weights | Notes |
|---|---|---|
| bf16 | 5.0 GiB | Full precision as released |
| fp8 | 2.5 GiB | 8-bit, near-lossless on most models |
| int4 | 1.3 GiB | 4-bit, smallest footprint |
The cache costs 60 KiB per token at 16-bit, so the full 131,072-token context of one request needs about 7.5 GiB. Concurrency multiplies that number, not the weights.
Hardware
At the released precision, with 90% of the card given to the server and 2.5 GiB kept for the runtime. The context column is what is left for the cache on that setup.
| GPU | Cards needed | Free for cache | Context it holds |
|---|---|---|---|
| RTX 4090 24GB | 1 | 14.1 GiB | the full 131,072 tokens |
| RTX 5090 32GB | 1 | 21.3 GiB | the full 131,072 tokens |
| L40S 48GB | 1 | 35.7 GiB | the full 131,072 tokens |
| A100 80GB | 1 | 64.5 GiB | the full 131,072 tokens |
| H100 80GB | 1 | 64.5 GiB | the full 131,072 tokens |
| RTX PRO 6000 96GB | 1 | 78.9 GiB | the full 131,072 tokens |
| H200 141GB | 1 | 119.4 GiB | the full 131,072 tokens |
Serving
A vLLM launch line for the shape above. Check the model card for a runtime the publisher recommends.
vllm serve LiquidAI/LFM2.5-2.6B \ --max-model-len 131072 \ --gpu-memory-utilization 0.90
Questions
The weights take about 5 GiB at the released precision. That fits on one RTX 4090 24GB, which leaves roughly 14 GiB for the key-value cache.
The repository declares other. Read the licence text before commercial use: the name alone does not tell you what is allowed.
The configuration allows 131,072 tokens. Whether the whole window is usable depends on the memory left for the cache, which the hardware table works out per card.
This page is a reference, and Aiqre does not serve this model today. We deploy open-weight models on dedicated EU hardware on request, so if you want an OpenAI-compatible endpoint for it, email [email protected] with the model name and roughly what volume you expect.
Also in the library
MiniCPM5-2B is a 2-billion-parameter dense transformer aimed at on-device and resource-constrained deployments.
NeoHorse-1-4B is a 4.2B open-weight model published by TokenRhythm on Hugging Face. It uses the Qwen3_5ForCausalLM architecture w…
K2-Horizon-3.7B is a 3.7 billion-parameter dense decoder-only model with a 512 K token context, released openly by IFM.
MiniCPM5-2B is a 2.5-billion-parameter dense Llama-style causal language model released by openbmb.
Hosting
Tell us the model and roughly what volume you expect. We reply with a price and an OpenAI-compatible endpoint, with your prompts never stored.