What is the difference between DeepSeek V4.1 Flash and Gemini 3.8 Flash?

DeepSeek V4.1 Flash is developed by DeepSeek while Gemini 3.8 Flash is developed by Google AI. DeepSeek V4.1 Flash has a 1.0M token context window vs Gemini 3.8 Flash's 1.0M. You can compare their actual outputs across 6 challenges on Rival to see how they differ in practice.

Which is better, DeepSeek V4.1 Flash or Gemini 3.8 Flash?

It depends on your use case. DeepSeek V4.1 Flash and Gemini 3.8 Flash 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.

How much does DeepSeek V4.1 Flash cost compared to Gemini 3.8 Flash?

DeepSeek V4.1 Flash costs $0.15/M input tokens and Gemini 3.8 Flash costs $0.75/M input tokens. DeepSeek V4.1 Flash is $0.60/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare DeepSeek V4.1 Flash and Gemini 3.8 Flash on Rival?

This page shows a side-by-side comparison of DeepSeek V4.1 Flash and Gemini 3.8 Flash 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.

Updated Sep 2026

DeepSeek V4.1 FlashvsGemini 3.8 Flash

DeepSeek V4.1 Flash is cheaper than Gemini 3.8 Flash at $0.15/M vs $0.75/M input tokens.

DeepSeek V4.1 Flash and Gemini 3.8 Flash compared across 6 shared prompts
Spec	DeepSeek V4.1 Flash	Gemini 3.8 Flash
Input price	$0.15/M tokens	$0.75/M tokens
Output price	$0.6/M tokens	$3.75/M tokens
Context window	1.0M tokens	1.0M tokens
Weights	Open	Closed
Free API (OpenRouter)	No	No
Released	Sep 2026	Sep 2026

Our Verdict

DeepSeek V4.1 Flash

Gemini 3.8 Flash

Not enough votes to call it. On the specs, nothing separates them.

DeepSeek V4.1 Flash costs 6.3x less per token.

Too close to call

API pricing

Cost per 1M tokens

DeepSeek V4.1 Flash

Input

$0.15

5.0× cheaper

Output

$0.60

6.3× cheaper

Gemini 3.8 Flash

Input

$0.75

Output

$3.75

DeepSeek V4.1 Flash is cheaper on both: 5.0× input, 6.3× output.

Where to run it

25 hosts, cheapest first

DeepSeek V4.1 Flash23 hosts

HostInOutContextUptime

Morph$0.12 in$0.48 out1M98.4% up Relacefp4$0.13 in$0.52 out1M99.9% up Sail Researchfp4$0.13 in$0.75 out1M99.9% up DeepInfrafp8$0.14 in$0.42 out1M99.7% up Alibaba Cloud$0.15 in$0.60 out1M99.9% up DeepSeek$0.15 in$0.60 out1M100% up

17 more hosts

StreamLakefp8$0.15 in$0.60 out1M99.5% up Wafer$0.20 in$0.60 out1M99.8% up CoreWeavefp8$0.20 in$0.65 out1M99.1% up OpenInferencefp4$0.20 in$0.80 out1M99.4% up Fireworks$0.22 in$0.66 out1M98.4% up Phala$0.28 in$1.10 out1M99.4% up GMI Cloudfp8$0.28 in$1.14 out1M99.7% up Novitafp8$0.28 in$1.14 out1M100% up AtlasCloudfp8$0.30 in$1.20 out1M99.8% up Basetenfp8$0.30 in$1.20 out1M98.2% up Makora$0.30 in$1.20 out1M98.7% up Modal$0.30 in$1.20 out1M99.8% up Parasailfp8$0.30 in$1.20 out1M93% up SiliconFlowfp8$0.30 in$1.20 out1M99.8% up Together$0.30 in$1.20 out1M100% up Venicefp8$0.38 in$1.50 out1M94.5% up DigitalOceandegraded$0.30 in$1.20 out1M98.1% up

Gemini 3.8 Flash2 hosts

HostInOutContextUptime

Google Vertex AI$0.38 in$1.88 out1M92.6% up Google AI Studio$0.75 in$3.75 out1M99.9% up

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

Research

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Cost per 1M tokens

25 hosts, cheapest first

What we learned reading every model

Common questions

What is the difference between DeepSeek V4.1 Flash and Gemini 3.8 Flash?

Which is better, DeepSeek V4.1 Flash or Gemini 3.8 Flash?

How much does DeepSeek V4.1 Flash cost compared to Gemini 3.8 Flash?

How can I compare DeepSeek V4.1 Flash and Gemini 3.8 Flash on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

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Cost per 1M tokens

25 hosts, cheapest first

What we learned reading every model

Common questions

What is the difference between DeepSeek V4.1 Flash and Gemini 3.8 Flash?

Which is better, DeepSeek V4.1 Flash or Gemini 3.8 Flash?

How much does DeepSeek V4.1 Flash cost compared to Gemini 3.8 Flash?

How can I compare DeepSeek V4.1 Flash and Gemini 3.8 Flash on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages