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  5. DeepSeek V4.1 FlashvsSolar Mini 4
Updated Sep 2026

DeepSeek V4.1 FlashvsSolar Mini 4

Solar Mini 4 is cheaper than DeepSeek V4.1 Flash at $0.05/M vs $0.15/M input tokens.

DeepSeek V4.1 Flash and Solar Mini 4 compared across 6 shared prompts
SpecDeepSeek V4.1 FlashSolar Mini 4
Input price$0.15/M tokens$0.05/M tokens
Output price$0.6/M tokens$0.2/M tokens
Context window1.0M tokens524K tokens
WeightsOpen—
Free API (OpenRouter)NoNo
ReleasedSep 2026Sep 2026
Our Verdict
DeepSeek V4.1 Flash
DeepSeek V4.1 Flash
Solar Mini 4
Solar Mini 4Runner-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
Solar Mini 4
Input
$0.05
3.0× cheaper
Output
$0.20
3.0× cheaper

Solar Mini 4 is cheaper on both: 3.0× input, 3.0× output.

Where to run it

27 hosts, cheapest first

DeepSeek V4.1 Flash26 hosts
HostInOutContextUptime
DDekaLLM$0.04 in·$0.49 out·1M·99.4% upMMorph$0.07 in·$0.30 out·1M·100% upOOpenInferencefp4$0.10 in·$0.50 out·1M·99.4% upRRelace$0.10 in·$0.50 out·1M·99.9% upSSail Researchfp4$0.13 in·$0.75 out·1M·99.1% upDDeepInfrafp8$0.14 in·$0.42 out·1M·99.9% up
20 more hostsFewer hosts
SStreamLakefp8$0.17 in·$0.66 out·1M·99.7% upWWafer$0.20 in·$0.60 out·1M·100% upCCoreWeavefp8$0.20 in·$0.65 out·1M·99.4% upFFireworks$0.22 in·$0.66 out·1M·99.9% upGGMI Cloudfp8$0.23 in·$0.90 out·1M·99.8% upKKreafp8$0.23 in·$0.90 out·1M·95.6% upPPhala$0.28 in·$1.10 out·1M·99.3% upNNovitafp8$0.28 in·$1.14 out·1M·100% upAlibaba Cloud$0.30 in·$1.20 out·1M·99.7% upAAtlasCloudfp8$0.30 in·$1.20 out·1M·99.9% 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·99.9% upMMakorafp8$0.30 in·$1.20 out·1M·99.2% upModal$0.30 in·$1.20 out·1M·99.6% upNNextBitfp8$0.30 in·$1.20 out·1M·100% upPParasailfp8$0.30 in·$1.20 out·1M·97.1% upSSiliconFlowfp8$0.30 in·$1.20 out·1M·99.5% upTTogether$0.30 in·$1.20 out·1M·99.3% upVVenicefp8$0.38 in·$1.50 out·1M·98.7% up
Solar Mini 41 host
HostInOutContextUptime
UUpstage$0.05 in·$0.20 out·524k·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 25 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

DeepSeek V4.1 Flash is developed by DeepSeek while Solar Mini 4 is developed by Upstage. DeepSeek V4.1 Flash has a 1.0M token context window vs Solar Mini 4's 524K. 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 Solar Mini 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 Solar Mini 4 costs $0.05/M input tokens. Solar Mini 4 is $0.10/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 Solar Mini 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.

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