Model library / LiquidAI
LFM2.5-24B-A2B is a 24 billion-parameter MoE reasoning model with 2.45 billion active parameters for on-device agentic tasks.
Mixture of experts, count not published
Context length in tokens, as published
Weights at the released precision
Licence declared on the repository
Overview
LFM2.5-24B-A2B is a 24-billion-parameter mixture-of-experts reasoning model with 2.45 billion active parameters, designed for fast, private on-device agents that need tool use and multi-turn reasoning.
Deploying the model requires handling 24 billion total parameters stored in bfloat16, with a context window of 131 072 tokens. The architecture uses 40 layers, 64 experts per MoE block and top-4 routing. The licence is listed as "other". Inference can run at up to 184 tokens per second on an Apple M5 Max or 21 000 tokens per second on a NVIDIA B300 GPU.
Specification
| Repository | LiquidAI/LFM2.5-24B-A2B |
| Publisher | LiquidAI |
| Published | 12 October 2026 |
| Architecture | Lfm2MoeForCausalLM |
| Model type | lfm2_moe |
| Parameters | 23,971,585,280 |
| Layers | 40 |
| 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/LFM2.5-24B-A2B-Base |
Memory
Parameter count multiplied by the bytes each format uses. The key-value cache comes on top.
| Precision | Weights | Notes |
|---|---|---|
| bf16 | 44.7 GiB | Full precision as released |
| fp8 | 22.3 GiB | 8-bit, near-lossless on most models |
| int4 | 11.2 GiB | 4-bit, smallest footprint |
The cache costs 80 KiB per token at 16-bit, so the full 131,072-token context of one request needs about 10.0 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 | 4 | 31.7 GiB | the full 131,072 tokens |
| RTX 5090 32GB | 2 | 7.9 GiB | about 104,194 tokens |
| L40S 48GB | 2 | 36.7 GiB | the full 131,072 tokens |
| A100 80GB | 1 | 24.8 GiB | the full 131,072 tokens |
| H100 80GB | 1 | 24.8 GiB | the full 131,072 tokens |
| RTX PRO 6000 96GB | 1 | 39.2 GiB | the full 131,072 tokens |
| H200 141GB | 1 | 79.7 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/LFM2.5-24B-A2B \ --max-model-len 131072 \ --gpu-memory-utilization 0.90
Questions
The weights take about 45 GiB at the released precision. That fits on one A100 80GB, which leaves roughly 25 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
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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.