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LFM2.5-2.6B (free)

Liquid AIfamily · LFM2.5huggingface.co/LiquidAI/LFM2.5-2.6B

Open in Graph
data quality67

Updated 6 h ago · first seen 11 Sept 2026

model_01M294WVRY9NNJ1G9WZX2WNC60

Overview

Identity

Canonical model
Yesidentity confidence: mediumOne row per real model release. Artifacts (checkpoints, quantisations, conversions) and folded evaluation variants point here.
Official checkpoints
official_checkpoints = hf_repo identifiers carried by the model itself; artifacts are separate entities pointing here through canonical_id.
Artifacts
1 quantization0 official · 0 third-partySeparate entities (checkpoint · quantization · conversion · packaging) pointing to this model through canonical_id.
Provider deployments
1
API aliases
lfm2-5-2-6bliquid/lfm-2.5-2.6bIdentifiers under which providers and evaluators refer to this model.
Folded evaluation variants
0Effort / thinking variants (…-high, …-non-reasoning) are result configurations of this model, not separate models. Their old URLs redirect here.

Openness

Open weights— weights downloadable under Other; 7 dimensions unknown.

Weights downloadable under a permissive or Creative Commons licence allowing commercial use; code or data may be missing.

  • Weights

    Yes

  • Inference code

    —

  • Training code

    —

  • Training data

    —

  • Dataset

    —

  • Commercial use

    —

  • Redistribution

    —

  • Derivatives

    —

Licence: Other (unclassified licence) (unknown · stated as “other”)

dimensions marked null are unknown, not false

Key facts

Release date

Source:Hugging Face Hub (public pages, model cards, papers)T2observed 15 h agomedium

Model card
huggingface.co/LiquidAI/LFM2.5-2.6B

Source:Hugging Face Hub (public pages, model cards, papers)T2observed 16 h agomedium

Openrouter id

Source:OpenRouter public model & pricing listingT2observed 16 h agomedium

Architecture

Architecture

Source:Hugging Face Hub (public pages, model cards, papers)T2observed 15 h agomedium

Model type

Source:Hugging Face Hub (public pages, model cards, papers)T2observed 15 h agomedium

Parameters

Source:Hugging Face Hub (public pages, model cards, papers)T2observed 16 h agomedium

Weights dtype

Source:Hugging Face Hub (public pages, model cards, papers)T2observed 15 h agomedium

File size

Source:Hugging Face Hub (public pages, model cards, papers)T2observed 15 h agomedium

Library name

Source:Hugging Face Hub (public pages, model cards, papers)T2observed 15 h agomedium

Pipeline tag

Source:Hugging Face Hub (public pages, model cards, papers)T2observed 16 h agomedium

Hugging Face repo

Source:OpenRouter public model & pricing listingT2observed 16 h agomedium

Capabilities

Modalities

Modalities unavailable.

Capabilities

  • Tool calling

    Unavailable

  • Structured output

    Unavailable

  • Reasoning

    Yes

    Artificial Analysis · T2

  • Vision

    Unavailable

  • Audio

    Unavailable

  • Fine-tuning available

    Unavailable

Context window

Source:Artificial AnalysisT2observed 14 h agomedium

Languages

Source:Hugging Face Hub (public pages, model cards, papers)T2observed 15 h agomedium

Benchmarks10

Compare with another model →

Comparable same task and conditions · Partially comparable same task, conditions differ (effort, temperature, judge) · Not comparable different variant or metric

Benchmark results grouped by comparability group
Benchmark · groupBest scoreTrustConfigurationResultsvs leaderEvaluatedSource
Terminal-Benchagentic · accuracy · variant=v2.1 · evaluator=Artificial AnalysisIndependentevaluatorArtificial Analysisvariantv2.1reasoningonconditions differ across rows → partially comparable2non-primary groupobs. 12 Sept 2026artificialanalysis.aiT2
SciCodecoding · accuracy · evaluator=Artificial AnalysisIndependentevaluatorArtificial Analysisreasoningonconditions differ across rows → partially comparable2−48.7 ptvs Claude Fable 5.1obs. 12 Sept 2026artificialanalysis.aiT2
Artificial Analysis Intelligence Indexcomposite · indexIndependentreasoningonversion4.3conditions differ across rows → partially comparable2−45.0vs Claude Fable 5.1obs. 12 Sept 2026artificialanalysis.aiT2
Humanity's Last Examknowledge · accuracy · evaluator=Artificial AnalysisIndependentevaluatorArtificial Analysisreasoningonconditions differ across rows → partially comparable2−52.9 ptvs Claude Fable 5.1obs. 12 Sept 2026artificialanalysis.aiT2
GPQA Diamondreasoning · accuracy · variant=Diamond · evaluator=Artificial AnalysisIndependentevaluatorArtificial AnalysisvariantDiamondreasoningonconditions differ across rows → partially comparable1non-primary groupobs. 12 Sept 2026artificialanalysis.aiT2
GPQA Diamondreasoning · accuracy · variant=GPQA Diamond · evaluator=Artificial AnalysisIndependentevaluatorArtificial AnalysisvariantGPQA Diamond1−40.5 ptvs gpt-6-astraobs. 11 Sept 2026artificialanalysis.aiT2

Current rows only, grouped by benchmark → canonical metric → comparability group (task configuration). Effort variants folded into this model appear as rows of the same group. 10 current rows in total. “vs leader” compares with the current leader of the benchmark's primary group only; other groups are not directly comparable. Comparability rules →

Providers & Pricing1

All offers in the price terminal →
Provider deployments, cheapest output first
ProviderContextInput / 1MOutput / 1MStatusObservedSource
OpenRoutercheapest outputliquid/lfm-2.5-2.6b:free65.5Kout 8.19Kactive2 h agosince 11 Sept 2026openrouter.aiT2

USD per 1M tokens as published by each provider; native units (per-request fees, flex/priority tiers) are kept verbatim. Rows are append-only — every price change is kept in the history below. Cost of a workload →

Price history

Step lines per provider; amber markers are recorded changes. Click a marker or a row for the evidence behind that price.

Output price · USD / 1M tokens 1 provider

Output price history of LFM2.5-2.6B (free)$0$0.20$0.40$0.60$0.80$1Sept 26Sept 26Sept 26Sept 26Sept 26OpenRouter: first observed → $0 · 11 Sept 2026
  • OpenRouter
  • OpenRouterfirst observed $011 Sept 2026

Input price · USD / 1M tokens 1 provider

Input price history of LFM2.5-2.6B (free)$0$0.20$0.40$0.60$0.80$1Sept 26Sept 26Sept 26Sept 26Sept 26OpenRouter: first observed → $0 · 11 Sept 2026
  • OpenRouter
  • OpenRouterfirst observed $011 Sept 2026

Hardware fit37

Estimated

37 of 37 device × quantization combinations fit.

Run locally: your machine →
Estimated hardware fit
HardwareQuantizationDevice memoryEst. memoryFits
Apple M3 Ultra4bit—2.0 GB est.Yes
Mac Studio (Apple M5 Ultra)4bit—2.0 GB est.Yes
Apple M2 Ultra4bit—2.0 GB est.Yes
Apple M1 Ultra4bit—2.0 GB est.Yes
Apple M3 Max4bit—2.0 GB est.Yes
Apple M4 Max4bit—2.0 GB est.Yes
Mac Studio (Apple M5 Max)4bit—2.0 GB est.Yes
MacBook Pro (Apple M5 Max)4bit—2.0 GB est.Yes
Apple M2 Max4bit—2.0 GB est.Yes
Apple M1 Max4bit—2.0 GB est.Yes
Apple M4 Pro4bit—2.0 GB est.Yes
Mac mini (Apple M5 Pro)4bit—2.0 GB est.Yes
MacBook Pro (Apple M5 Pro)4bit—2.0 GB est.Yes
Apple M3 Pro4bit—2.0 GB est.Yes
Apple M1 Pro4bit—2.0 GB est.Yes
Apple M2 Pro4bit—2.0 GB est.Yes
Apple M44bit—2.0 GB est.Yes
iMac (Apple M4)4bit—2.0 GB est.Yes
Mac mini (Apple M6)4bit—2.0 GB est.Yes
MacBook Air (Apple M5)4bit—2.0 GB est.Yes
MacBook Pro (Apple M5)4bit—2.0 GB est.Yes
Apple M24bit—2.0 GB est.Yes
Apple M34bit—2.0 GB est.Yes
Apple M14bit—2.0 GB est.Yes
NVIDIA GeForce RTX 30904bit24 GB2.0 GB est.Yes
NVIDIA GeForce RTX 40904bit24 GB2.0 GB est.Yes
NVIDIA GeForce RTX 50904bit32 GB2.0 GB est.Yes
NVIDIA A100 80GB4bit80 GB2.0 GB est.Yes
NVIDIA H100 SXM4bit80 GB2.0 GB est.Yes
NVIDIA H100 NVL4bit94 GB2.0 GB est.Yes
NVIDIA DGX Spark4bit128 GB2.0 GB est.Yes
NVIDIA H2004bit141 GB2.0 GB est.Yes
NVIDIA H200 NVL4bit141 GB2.0 GB est.Yes
NVIDIA B2004bit180 GB2.0 GB est.Yes
AMD Instinct MI300X4bit192 GB2.0 GB est.Yes
AMD Instinct MI325X4bit256 GB2.0 GB est.Yes
NVIDIA DGX B2004bit1,440 GB2.0 GB est.Yes
Assumptions (7)
  • Estimated, not measured: weights = parameters × bytes/param × 1.15 runtime overhead (or the observed artifact file size when one is recorded).
  • bytes/param: 4bit = 0.5, 8bit = 1.0, fp16 = 2.0 (uniform quantization, no per-layer exceptions).
  • KV cache: 2 × layers × kv_heads × head_dim × 2 bytes × context × batch when the architecture is known; otherwise 0.5 GB per 8 192 tokens (× batch), independent of architecture (GQA/MLA models need less).
  • A model 'fits' when the estimate is at most the device memory minus 2 GB reserved for the OS and framework.
  • Mixture-of-experts models are estimated on total parameters (all experts must be resident); active parameters are ignored.
  • Device memory uses the largest configuration when several are listed (e.g. Apple silicon tiers).
  • Multi-GPU: device memories are summed; interconnect bandwidth, tensor-parallel replication and pipeline bubbles are not modelled.

Lineage

Open in Graph →
Explicit derived_from / fine_tuned_from / distilled_from relations stated by sources; artifacts collapsed by kind.
ANCESTORS 1DESCENDANTS 0 · ARTIFACTSLFM2.5-2.6B-BaseLiquid AILFM2.5-2.6B-Base — Liquid AI1 quantizationartifacts · collapsed1 quantization — artifacts · collapsedLFM2.5-2.6B (free)2.7B params · this modelLFM2.5-2.6B (free) — 2.7B params · this model

Versions & Artifacts1

Version history

Context windowfirst observation only

11 Sept 2026current

Licensefirst observation only

11 Sept 2026current

Opennessfirst observation only

11 Sept 2026current

Parametersfirst observation only

11 Sept 2026current

Each hop is a claim: click a value for its source, tier and observation time. Nothing is overwritten — a new observation closes the previous claim.

Artifacts 1

quantization 1

Papers1

Timeline5

Full timeline →

Change history30

Temporal, append-only claims: a new observation closes the previous claim instead of overwriting it. Rewind the record with the as-of picker.

Viewing AI Atlas as of 1 Sept 2026 — attributes exactly as the atlas knew them on that day; later corrections are not shown.

Back to today →

LFM2.5-2.6B (free) was not yet in AI Atlas on 1 Sept 2026

First seen 11 Sept 2026. Nothing is inferred backwards: no attribute is shown for dates before the first observation.
30 claims · 29 properties

Release daterelease_date1

Claim history for Release date
ValueValid from → toStatusSourceConfidenceExtractor
28 Jul 2026 → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Opennessopenness1

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ValueValid from → toStatusSourceConfidenceExtractor
open-weights → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Licenselicense1

Claim history for License
ValueValid from → toStatusSourceConfidenceExtractor
Other → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Architecturearchitecture1

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ValueValid from → toStatusSourceConfidenceExtractor
Lfm2ForCausalLM → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Parametersparameter_count1

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ValueValid from → toStatusSourceConfidenceExtractor
2.7B → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Context windowcontext_length1

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ValueValid from → toStatusSourceConfidenceExtractor
128K tokens → currentcurrentArtificial AnalysisT2mediumdeterministic

Languageslanguages1

Claim history for Languages
ValueValid from → toStatusSourceConfidenceExtractor
ar, zh, en, fr, de, hi, id, it, ja, ko, pl, pt, ru, es, th, vi → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Base modelbase_model1

Claim history for Base model
ValueValid from → toStatusSourceConfidenceExtractor
LiquidAI/LFM2.5-2.6B-Base → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

File sizefile_size_gb1

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ValueValid from → toStatusSourceConfidenceExtractor
5.4 GB → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Hugging Face repohf_repo1

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ValueValid from → toStatusSourceConfidenceExtractor
LiquidAI/LFM2.5-2.6B → currentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Pipeline tagpipeline_tag1

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ValueValid from → toStatusSourceConfidenceExtractor
text-generation → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Model cardmodel_card_url1

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ValueValid from → toStatusSourceConfidenceExtractor
https://huggingface.co/LiquidAI/LFM2.5-2.6B → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Downloadsmetric.downloads1

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ValueValid from → toStatusSourceConfidenceExtractor
108,352 → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Likesmetric.likes2

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ValueValid from → toStatusSourceConfidenceExtractor
754 → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic
753 → supersededHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Aa context windowaa_context_window1

Claim history for Aa context window
ValueValid from → toStatusSourceConfidenceExtractor
128,000 tokens → currentcurrentArtificial AnalysisT2mediumdeterministic

Aa opennessaa_openness1

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ValueValid from → toStatusSourceConfidenceExtractor
open-weights → currentcurrentArtificial AnalysisT2mediumdeterministic

Gatedgated1

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ValueValid from → toStatusSourceConfidenceExtractor
No → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Last modifiedlast_modified1

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ValueValid from → toStatusSourceConfidenceExtractor
2026-08-24T21:06:45+00:00 → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Library namelibrary_name1

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ValueValid from → toStatusSourceConfidenceExtractor
transformers → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

License namelicense_name1

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ValueValid from → toStatusSourceConfidenceExtractor
lfm1.0 → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

License urllicense_url1

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ValueValid from → toStatusSourceConfidenceExtractor
LICENSE → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Aa median output tokens per secondmetric.aa_median_output_tokens_per_second1

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ValueValid from → toStatusSourceConfidenceExtractor
199 → currentcurrentArtificial AnalysisT2mediumdeterministic

Downloads all timemetric.downloads_all_time1

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ValueValid from → toStatusSourceConfidenceExtractor
230,380 → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Model typemodel_type1

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ValueValid from → toStatusSourceConfidenceExtractor
lfm2 → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Openrouter idopenrouter_id1

Claim history for Openrouter id
ValueValid from → toStatusSourceConfidenceExtractor
liquid/lfm-2.5-2.6b → currentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Reasoningreasoning1

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ValueValid from → toStatusSourceConfidenceExtractor
Yes → currentcurrentArtificial AnalysisT2mediumdeterministic

Tagstags1

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ValueValid from → toStatusSourceConfidenceExtractor
transformers, safetensors, lfm2, text-generation, liquid, lfm2.5, edge, ar, zh, en, fr, de, hi, id, it, ja, ko, pl, pt, ru, es, th, vi → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Weights availableweights_available1

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ValueValid from → toStatusSourceConfidenceExtractor
Yes → currentcurrentAI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2highderived

Weights dtypeweights_dtype1

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ValueValid from → toStatusSourceConfidenceExtractor
BF16 → currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →

Provenance

Attributed facts

31

Source tiers

T231

Freshest observation

6 h ago

Conflicts

None

Source documents 6

Source documents
SourceDocumentTypeTierLast observedSnapshots
Hugging Face Hub (public pages, model cards, papers)huggingface.co/LiquidAI/LFM2.5-2.6B model_pageT2· Quality secondary1 h ago5
Hugging Face Hub (public pages, model cards, papers)huggingface.co/LiquidAI/LFM2.5-2.6B-GGUF model_pageT2· Quality secondary1 h ago5
Hugging Face Hub (public pages, model cards, papers)huggingface.co/models?author=LiquidAI&p=0&sort=downloads listingT2· Quality secondary2 h ago7
OpenRouter public model & pricing listingopenrouter.ai/api/v1/models catalogueT2· Quality secondary2 h ago11
Artificial Analysisartificialanalysis.ai/leaderboards/models leaderboardT2· Quality secondary6 h ago2
Hugging Face Hub (public pages, model cards, papers)huggingface.co/LiquidAI/LFM2.5-2.6B/raw/main/README.md model_cardT2· Quality secondary9 h ago1

Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.

Data quality (67/100) measures how well AI Atlas knows this entity — completeness, primary-source ratio, freshness, conflicts — never how good the model is. Methodology →