What is the difference between DeepSeek V4 Pro and GPT-6 Astra Pro?

DeepSeek V4 Pro is developed by DeepSeek while GPT-6 Astra Pro is developed by OpenAI. DeepSeek V4 Pro has a 1.0M token context window vs GPT-6 Astra Pro's 1.1M. You can compare their actual outputs across 6 challenges on Rival to see how they differ in practice.

Which is better, DeepSeek V4 Pro or GPT-6 Astra Pro?

It depends on your use case. DeepSeek V4 Pro and GPT-6 Astra Pro 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 Pro cost compared to GPT-6 Astra Pro?

DeepSeek V4 Pro costs $1.74/M input tokens and GPT-6 Astra Pro costs $10/M input tokens. DeepSeek V4 Pro is $8.26/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 Pro and GPT-6 Astra Pro on Rival?

This page shows a side-by-side comparison of DeepSeek V4 Pro and GPT-6 Astra Pro 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 ProvsGPT-6 Astra Pro

DeepSeek V4 Pro is cheaper than GPT-6 Astra Pro at $1.74/M vs $10/M input tokens.

DeepSeek V4 Pro and GPT-6 Astra Pro compared across 6 shared prompts
Spec	DeepSeek V4 Pro	GPT-6 Astra Pro
Input price	$1.74/M tokens	$10/M tokens
Output price	$3.48/M tokens	$50/M tokens
Context window	1.0M tokens	1.1M tokens
Weights	Open	Closed
Free API (OpenRouter)	No	No
Released	Apr 2026	Sep 2026

Our Verdict

DeepSeek V4 Pro

GPT-6 Astra Pro

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

DeepSeek V4 Pro costs 14x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

DeepSeek V4 Pro

Input

$1.74

5.7× cheaper

Output

$3.48

14× cheaper

GPT-6 Astra Pro

Input

$10.00

Output

$50.00

DeepSeek V4 Pro is cheaper on both: 5.7× input, 14× output.

Where to run it

17 hosts, cheapest first

DeepSeek V4 Pro15 hosts

HostInOutContextUptime

StreamLakefp8$0.96 in$1.91 out1M99.3% up GMI Cloudfp8$0.96 in$1.91 out1M97.9% up DigitalOcean$1.04 in$2.09 out1M99.9% up Cloudflare Workers AI$1.15 in$2.55 out1M95.6% up DeepInfrafp8$1.30 in$2.60 out1M99.3% up Alibaba Cloudfp8$1.42 in$2.83 out1M100% up

9 more hosts

SiliconFlowfp8$1.50 in$3.13 out1M98% up Novitafp8$1.60 in$3.20 out1M99.8% up Venice$1.65 in$3.30 out1M95.5% up AtlasCloudfp4$1.68 in$3.38 out1M98.3% up Baidu Qianfanfp8$1.69 in$3.38 out1M99.2% up Basetenfp4$1.74 in$3.48 out1M99.3% up Parasailfp8$1.74 in$3.48 out1M99.5% up Azure AI Foundry$1.91 in$3.83 out1M98.8% up NextBitfp8$2.80 in$5.50 out1M99.9% up

GPT-6 Astra Pro2 hosts

HostInOutContextUptime

Azure AI Foundry$10.00 in$50.00 out1.1M98.9% up OpenAI$10.00 in$50.00 out1.1M99.6% up

Per million tokens. Prices and uptime via OpenRouter, checked 16 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

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More comparisons

Cost per 1M tokens

17 hosts, cheapest first

What we learned reading every model

Common questions

What is the difference between DeepSeek V4 Pro and GPT-6 Astra Pro?

Which is better, DeepSeek V4 Pro or GPT-6 Astra Pro?

How much does DeepSeek V4 Pro cost compared to GPT-6 Astra Pro?

How can I compare DeepSeek V4 Pro and GPT-6 Astra Pro on Rival?

More comparisons

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Cost per 1M tokens

17 hosts, cheapest first

What we learned reading every model

Common questions

What is the difference between DeepSeek V4 Pro and GPT-6 Astra Pro?

Which is better, DeepSeek V4 Pro or GPT-6 Astra Pro?

How much does DeepSeek V4 Pro cost compared to GPT-6 Astra Pro?

How can I compare DeepSeek V4 Pro and GPT-6 Astra Pro on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages