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LFM2.5-2.6B

Liquid AIOpen WeightLFM Open License v1.0 · Commercial OK

Description

LFM2.5-2.6B is Liquid AI's open-weight 2.6B dense hybrid text→text model (LFM2 architecture) post-trained for on-device agentic workloads: planning, native tool calling, and multi-step tasks. ~2.69B parameters, trained on ~34T tokens, 128K context (131,072 tokens), 128K vocabulary. Always thinks before answering. Day-one support for Transformers, vLLM, SGLang, llama.cpp, MLX, and ONNX. Hugging Face: LiquidAI/LFM2.5-2.6B (+ Base). License: LFM Open License v1.0 (lfm1.0). Catalog benches include AIME25, LiveCodeBench v6, IFBench, Multi-IF, BFCL-v4, PinchBench, Claw-Eval, τ³-Banking 0.0567 (Liquid harness; scale differs from some AA τ³ rows), and aa-omniscience-index −29.50 (signed). No catalog id for ToolSandbox 77.83, BrowseComp+ (OpenClaw) 26.89, or IFStruct 85.49 — recorded here only. Sources: https://www.liquid.ai/blog/lfm2-5-2-6b · https://huggingface.co/LiquidAI/LFM2.5-2.6B. No official hosted provider row in this catalog (no sibling Liquid/OpenRouter provider pattern present); OpenRouter free route liquid/lfm-2.5-2.6b:free exists externally but was not added.

Release Date
2026-08-04
Parameters
2.7B
Context Length
128K
Modalities
text

Capability Radar

60
general
70
coding
50
reasoning
43
scienceest.
30
agents
0
multimodal

Science is estimated from LLM Stats science scores or reasoning when no dedicated science benchmarks are available.

Rankings

Domain#RankScoreSource
Agentic Capability139
29.0
LS

Benchmark Scores (LLM Stats)

(LLM Stats (zeroeval))

Agents

PinchBench68.2%SR
Claw-Eval62.8%SR
BFCL-V456.9%SR
Tau3 Banking5.7%SR

Communication

Multi-IF80.1%SR

General

LiveCodeBench v659.4%SR
IFBench59.2%SR

Knowledge

AA-Omniscience Index-29.50 / 200SR

Math

AIME 202551.9%SR

AA Evaluation Indices

(Artificial Analysis)

No AA evaluation data available

LLM Stats Category Scores

(LLM Stats (zeroeval))
Structured Output
80
Language
80
Communication
80
Instruction Following
70
Code
70
General
60
Math
50
Reasoning
50
Agents
50
Tool Calling
30

Pricing

Input PriceFree
Output PriceFree
Blended Price (3:1)Free

Speed

No speed data available

Provider Price Ranking

No provider data available

External Sources