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  5. DeepSeek V4.1 FlashvsMistral Small 4
Updated Sep 2026

DeepSeek V4.1 FlashvsMistral Small 4

DeepSeek V4.1 Flash has a larger context window than Mistral Small 4 (1.0M tokens vs 262K tokens).

DeepSeek V4.1 Flash and Mistral Small 4 compared across 6 shared prompts
SpecDeepSeek V4.1 FlashMistral Small 4
Input price$0.15/M tokens$0.15/M tokens
Output price$0.6/M tokens$0.6/M tokens
Context window1.0M tokens262K tokens
WeightsOpenOpen
Free API (OpenRouter)NoNo
ReleasedSep 2026Mar 2026
Our Verdict
DeepSeek V4.1 Flash
DeepSeek V4.1 Flash
Mistral Small 4
Mistral Small 4Runner-up

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

Slight edge
API pricing

Cost per 1M tokens

DeepSeek V4.1 Flash
Input
$0.15
Output
$0.60
Mistral Small 4
Input
$0.15
Output
$0.60
Where to run it

24 hosts, cheapest first

DeepSeek V4.1 Flash23 hosts
HostInOutContextUptime
MMorph$0.12 in·$0.48 out·1M·98.4% upRRelacefp4$0.13 in·$0.52 out·1M·99.9% upSSail Researchfp4$0.13 in·$0.75 out·1M·99.9% upDDeepInfrafp8$0.14 in·$0.42 out·1M·99.7% upAlibaba Cloud$0.15 in·$0.60 out·1M·99.9% upDeepSeek$0.15 in·$0.60 out·1M·100% up
17 more hostsFewer hosts
SStreamLakefp8$0.15 in·$0.60 out·1M·99.5% upWWafer$0.20 in·$0.60 out·1M·99.8% upCCoreWeavefp8$0.20 in·$0.65 out·1M·99.1% upOOpenInferencefp4$0.20 in·$0.80 out·1M·99.4% upFFireworks$0.22 in·$0.66 out·1M·98.4% upPPhala$0.28 in·$1.10 out·1M·99.4% upGGMI Cloudfp8$0.28 in·$1.14 out·1M·99.7% upNNovitafp8$0.28 in·$1.14 out·1M·100% upAAtlasCloudfp8$0.30 in·$1.20 out·1M·99.8% upBBasetenfp8$0.30 in·$1.20 out·1M·98.2% upMMakora$0.30 in·$1.20 out·1M·98.7% upModal$0.30 in·$1.20 out·1M·99.8% upPParasailfp8$0.30 in·$1.20 out·1M·93% upSSiliconFlowfp8$0.30 in·$1.20 out·1M·99.8% upTTogether$0.30 in·$1.20 out·1M·100% upVVenicefp8$0.38 in·$1.50 out·1M·94.5% upDDigitalOceandegraded$0.30 in·$1.20 out·1M·98.1% up
Mistral Small 41 host
HostInOutContextUptime
Mistral$0.15 in·$0.60 out·262k·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 22 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

DeepSeek V4.1 Flash is developed by DeepSeek while Mistral Small 4 is developed by Mistral AI. DeepSeek V4.1 Flash has a 1.0M token context window vs Mistral Small 4's 262K. 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 Mistral Small 4 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 Mistral Small 4 costs $0.15/M input tokens. Mistral Small 4 is $0.00/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 Mistral Small 4 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

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Same lab, same size, long tail

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Model pages

DeepSeek V4.1 Flash logo
DeepSeek V4.1 Flash6 outputs, specs and price
Mistral Small 4 logo
Mistral Small 453 outputs, specs and price
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