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  5. DeepSeek V4.1 FlashvsGLM 4.5
Updated Sep 2026

DeepSeek V4.1 FlashvsGLM 4.5

DeepSeek V4.1 Flash is cheaper than GLM 4.5 at $0.15/M vs $0.6/M input tokens.

DeepSeek V4.1 Flash and GLM 4.5 compared across 6 shared prompts
SpecDeepSeek V4.1 FlashGLM 4.5
Input price$0.15/M tokens$0.6/M tokens
Output price$0.6/M tokens$2.2/M tokens
Context window1.0M tokens128K tokens
WeightsOpenOpen
Free API (OpenRouter)NoNo
ReleasedSep 2026Jul 2025
Our Verdict
DeepSeek V4.1 Flash
DeepSeek V4.1 Flash
GLM 4.5
GLM 4.5Runner-up

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

DeepSeek V4.1 Flash costs 3.7x less per token.

Too close to call
API pricing

Cost per 1M tokens

DeepSeek V4.1 Flash
Input
$0.15
4.0× cheaper
Output
$0.60
3.7× cheaper
GLM 4.5
Input
$0.60
Output
$2.20

DeepSeek V4.1 Flash is cheaper on both: 4.0× input, 3.7× output.

Where to run it

23 hosts, cheapest first

DeepSeek V4.1 Flash22 hosts
HostInOutContextUptime
MMorph$0.12 in·$0.48 out·1M·98.2% upRRelacefp4$0.13 in·$0.52 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% upSStreamLakefp8$0.15 in·$0.60 out·1M·99.5% up
16 more hostsFewer hosts
SSail Researchfp4$0.20 in·$0.60 out·1M·99.9% upWWafer$0.20 in·$0.60 out·1M·99.8% upCCoreWeavefp8$0.20 in·$0.65 out·1M·99.2% upFFireworks$0.22 in·$0.66 out·1M·98.3% 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% upDDigitalOcean$0.30 in·$1.20 out·1M·98.4% upMMakora$0.30 in·$1.20 out·1M·98.6% upModal$0.30 in·$1.20 out·1M·99.8% upPParasailfp8$0.30 in·$1.20 out·1M·92.9% upSSiliconFlowfp8$0.30 in·$1.20 out·1M·99.8% upTTogether$0.30 in·$1.20 out·1M·99.9% upBBasetenfp8degraded$0.30 in·$1.20 out·1M·98.4% upVVenicefp8degraded$0.38 in·$1.50 out·1M·95% up
GLM 4.51 host
HostInOutContextUptime
Z.aifp8$0.60 in·$2.20 out·131k·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 GLM 4.5 is developed by Zhipu AI. DeepSeek V4.1 Flash has a 1.0M token context window vs GLM 4.5'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 GLM 4.5 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 GLM 4.5 costs $0.6/M input tokens. DeepSeek V4.1 Flash is $0.45/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 GLM 4.5 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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Model pages

DeepSeek V4.1 Flash logo
DeepSeek V4.1 Flash6 outputs, specs and price
GLM 4.5 logo
GLM 4.559 outputs, specs and price
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