Skip to main content

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
66K
Modalities
text

Capability Radar

10
general
9
coding
56
reasoning
31
science
30
agents
0
multimodal

Rankings

Domain#RankScoreSource
Code Ranking523
9.0
AA
General Ranking545
16.0
AA
Science448
29.0
AA

Benchmark Scores (LLM Stats)

(LLM Stats (zeroeval))

Agents

Tau3 Banking5.7%SR

Code

PinchBench68.2%SR
Claw-Eval62.8%SR

Instruction Following

IFBench59.2%SR

Knowledge

AA-Omniscience Index-29.50 / 200SR

Math

AIME 202551.9%SR

Reasoning

Multi-IF80.1%SR
LiveCodeBench v659.4%SR

Tool Calling

BFCL-V456.9%SR

AA Evaluation Indices

(Artificial Analysis)
Intelligence Index(Artificial Analysis)
11.0
Coding Index(Artificial Analysis)
7.7
Gpqa(NYU + Cohere + Anthropic (2023))
0.6
Scicode(UIUC + Argonne National Lab (2024))
0.1
Tau Banking
0.1
Hle(Center for AI Safety + Scale AI (2025))
0.1
Lcr(Artificial Analysis)
0.1
Terminalbench V2 1
0.0

LLM Stats Category Scores

(LLM Stats (zeroeval))
Language
80
Structured Output
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

Tokens/sec0.0
Time to First Token0.00s
Time to Answer0.00s

Provider Price Ranking

No provider data available

External Sources