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LFM2.5 2.6B

Aug 2026
lLFM2.5 2.6B
Compare in
on
—per task?
$0.35 / $0.50per 1M in / outcache $0.04
—output speed?
131Kcontext

Rankingin thinking mode?

Strong at

B
Knowledge#100 of 320
C
Agents & work tasks#146 of 177Reasoning#244 of 336Science#242 of 312Long context#270 of 314

Alternatives?

ModelScoreCostPer taskWhat changes
CheaperClaude Haiku 5.5max×5.2-48%$0.21Remove sampling parameters+5BetterGPT-6 Lunalow×2.6-48%$0.005Function calling only with none · Chat Completions+3IOpenK2 Horizon 7Bthinking×2.5+35%$0.30 / $1.20Memory (4-bit): 1.3 GB → 4.5 GBCheaperMiniMax M3.1 Flashthinking×5.1-32%$0.22No strict JSON+1CheaperGLM 5.3 FlashmaxOpen×5-39%$0.28Memory (4-bit): 1.3 GB → 193 GB+5

Run it yourself

estimate
Fits on✓ 8 GB (phone, laptop) · full quality✓ 16 GB · full quality✓ 24 GB GPU · full quality✓ 48 GB GPU · full quality✓ 80 GB GPU · full quality
Licencelfm1.0commercial use with conditions

Benchmarks

all categories
Chat & Knowledge
Humanity's Last Exam6.2#246
AA Omniscience Index-11#100
CritPt (physics)0#182
AA Intelligence Index 4.3.2≈8.4#243
AA Omniscience · Accuracy4.4#319
AA Omniscience · Hallucination Rate16#6
AA-LCR (long context) 1.15.7#272
GPQA Diamond55.8#245
Coding
SciCode14.4#141
Terminal-Bench 2.14.5#138
Agents & Tool Use
GDPval-AA (work tasks) 2.10#146
τ³-Banking · AA7.2#102

FAQ

How much does LFM2.5 2.6B cost?›

$0.35 per 1M input tokens and $0.50 per 1M output tokens; cached input $0.04 per 1M.

Is LFM2.5 2.6B free to use?›

There is no free API; the cheapest paid price is $0.35 per 1M input tokens. The weights are open, so you can run it yourself.

How good is LFM2.5 2.6B, and what is it best at?›

#244 of 336 in Chat & Knowledge, #141 of 142 in Coding, #146 of 177 in Agents & Tool Use.

Is LFM2.5 2.6B better than LFM2 2.6B?›

On AA Intelligence Index 4.3.2, LFM2.5 2.6B scores 8.4 vs 5.2 — higher.

How can I use LFM2.5 2.6B?›

Through the API of Liquid.

What is the context window of LFM2.5 2.6B?›

131K tokens, with up to 8K output tokens.

When was LFM2.5 2.6B released? Is there a newer version?›

Released 2026-08-04. It is the current version in its line.

Is LFM2.5 2.6B open source?›

Yes, the weights are open (lfm1.0 licence).

Can I run LFM2.5 2.6B locally?›

The weights are open and can be self-hosted; hardware needs are not confirmed yet.

Can LFM2.5 2.6B read images?›

No, it accepts text only.

What is LFM2.5 2.6B?›

LFM2.5 2.6B is an open-weights language model from liquid, released Aug 2026, the successor to LFM2 2.6B.

What are the best alternatives to LFM2.5 2.6B?›

Claude Haiku 5.5 (cheaper), GPT-6 Luna (better), K2 Horizon 7B (open weights).