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  5. DeepSeek V4.1 FlashvsOpenAI o4 Mini High
Updated Sep 2026

DeepSeek V4.1 FlashvsOpenAI o4 Mini High

DeepSeek V4.1 Flash is cheaper than OpenAI o4 Mini High at $0.15/M vs $1.1/M input tokens.

DeepSeek V4.1 Flash and OpenAI o4 Mini High compared across 6 shared prompts
SpecDeepSeek V4.1 FlashOpenAI o4 Mini High
Input price$0.15/M tokens$1.1/M tokens
Output price$0.6/M tokens$4.4/M tokens
Context window1.0M tokens200K tokens
WeightsOpenClosed
Free API (OpenRouter)NoNo
ReleasedSep 2026Apr 2025
Our Verdict
DeepSeek V4.1 Flash
DeepSeek V4.1 Flash
OpenAI o4 Mini High
OpenAI o4 Mini HighRunner-up

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

DeepSeek V4.1 Flash costs 7.3x less per token.

Slight edge
API pricing

Cost per 1M tokens

DeepSeek V4.1 Flash
Input
$0.15
7.3× cheaper
Output
$0.60
7.3× cheaper
OpenAI o4 Mini High
Input
$1.10
Output
$4.40

DeepSeek V4.1 Flash is cheaper on both: 7.3× input, 7.3× output.

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
OpenAI o4 Mini High1 host
HostInOutContextUptime
OpenAI$1.10 in·$4.40 out·200k·100% 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 OpenAI o4 Mini High is developed by OpenAI. DeepSeek V4.1 Flash has a 1.0M token context window vs OpenAI o4 Mini High's 200K. 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 OpenAI o4 Mini High 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 OpenAI o4 Mini High costs $1.1/M input tokens. DeepSeek V4.1 Flash is $0.95/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 OpenAI o4 Mini High 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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DeepSeek V4.1 Flash logoGPT-5.4 logo
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DeepSeek V4.1 Flash vs GPT-5.4 MiniCross-provider

Model pages

DeepSeek V4.1 Flash logo
DeepSeek V4.1 Flash6 outputs, specs and price
OpenAI o4 Mini High logo
OpenAI o4 Mini High55 outputs, specs and price
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