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  5. DeepSeek V4.1 FlashvsLFM2.5-2.6B
Updated Sep 2026

DeepSeek V4.1 FlashvsLFM2.5-2.6B

LFM2.5-2.6B is cheaper than DeepSeek V4.1 Flash at $0/M vs $0.15/M input tokens.

DeepSeek V4.1 Flash and LFM2.5-2.6B compared across 6 shared prompts
SpecDeepSeek V4.1 FlashLFM2.5-2.6B
Input price$0.15/M tokensFree
Output price$0.6/M tokensFree
Context window1.0M tokens128K tokens
WeightsOpenOpen
Free API (OpenRouter)NoYes (1 provider)
ReleasedSep 2026Aug 2026
Our Verdict
DeepSeek V4.1 Flash
DeepSeek V4.1 Flash
LFM2.5-2.6B
LFM2.5-2.6BRunner-up

Not enough votes to call it. On the specs, DeepSeek V4.1 Flash has the edge: bigger model tier, bigger context window, major provider backing.

Slight edge
API pricing

Cost per 1M tokens

DeepSeek V4.1 Flash
Input
$0.15
Output
$0.60
LFM2.5-2.6B
Input
$0.000
Output
$0.000
Where to run it

24 hosts, cheapest first

DeepSeek V4.1 Flash23 hosts
HostInOutContextUptime
OOpenInferencefp4$0.10 in·$0.50 out·1M·99.5% upWWafer$0.12 in·$0.60 out·1M·99.7% upRRelacefp4$0.12 in·$0.52 out·1M·99.9% upMMorph$0.13 in·$0.51 out·1M·98.4% upSSail Researchfp4$0.13 in·$0.75 out·1M·99.9% upDDeepInfrafp8$0.14 in·$0.42 out·1M·99.7% up
17 more hostsFewer hosts
SStreamLakefp8$0.15 in·$0.60 out·1M·99.5% upCCoreWeavefp8$0.20 in·$0.65 out·1M·99.2% upFFireworks$0.22 in·$0.66 out·1M·98.8% upPPhala$0.28 in·$1.10 out·1M·99.4% upGGMI Cloudfp8$0.28 in·$1.14 out·1M·99.6% upNNovitafp8$0.28 in·$1.14 out·1M·100% upAlibaba Cloud$0.30 in·$1.20 out·1M·99.9% upAAtlasCloudfp8$0.30 in·$1.20 out·1M·99.7% upBBasetenfp8$0.30 in·$1.20 out·1M·99.4% upDeepSeek$0.30 in·$1.20 out·1M·100% upDDigitalOcean$0.30 in·$1.20 out·1M·97.9% upMMakora$0.30 in·$1.20 out·1M·98.9% upModal$0.30 in·$1.20 out·1M·99.8% upSSiliconFlowfp8$0.30 in·$1.20 out·1M·99.8% upTTogether$0.30 in·$1.20 out·1M·99.9% upVVenicefp8$0.38 in·$1.50 out·1M·96.7% upPParasailfp8degraded$0.30 in·$1.20 out·1M·93% up
LFM2.5-2.6B1 host
HostInOutContextUptime
Liquid AIfp8$0 in·$0 out·66k·99.9% up

Per million tokens. Prices and uptime via OpenRouter, checked 23 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

DeepSeek V4.1 Flash is developed by DeepSeek while LFM2.5-2.6B is developed by Liquid AI. DeepSeek V4.1 Flash has a 1.0M token context window vs LFM2.5-2.6B's 128K. You can compare their actual outputs across 6 challenges on Rival to see how they differ in practice.

It depends on your use case. DeepSeek V4.1 Flash and LFM2.5-2.6B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 6 challenges so you can judge which fits your needs best.

DeepSeek V4.1 Flash costs $0.15/M input tokens and LFM2.5-2.6B costs $0/M input tokens. LFM2.5-2.6B is $0.15/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

This page shows a side-by-side comparison of DeepSeek V4.1 Flash and LFM2.5-2.6B across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Keep exploring

More comparisons

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Same lab, same size, long tail

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LFM2.5-2.6B vs Granite 4.2 8BSame size
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DeepSeek V4.1 Flash logoMistral Devstral Small 1.1 logo
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LFM2.5-2.6B vs Dots3-Note PreviewNew provider
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Model pages

DeepSeek V4.1 Flash logo
DeepSeek V4.1 Flash6 outputs, specs and price
LFM2.5-2.6B logo
LFM2.5-2.6B56 outputs, specs and price
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