What is the difference between DeepSeek V4 Pro 0813 and GPT-6 Astra Pro?

DeepSeek V4 Pro 0813 is developed by DeepSeek while GPT-6 Astra Pro is developed by OpenAI. DeepSeek V4 Pro 0813 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 0813 or GPT-6 Astra Pro?

It depends on your use case. DeepSeek V4 Pro 0813 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 0813 cost compared to GPT-6 Astra Pro?

DeepSeek V4 Pro 0813 costs $0.66/M input tokens and GPT-6 Astra Pro costs $10/M input tokens. DeepSeek V4 Pro 0813 is $9.34/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 0813 and GPT-6 Astra Pro on Rival?

This page shows a side-by-side comparison of DeepSeek V4 Pro 0813 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 Pro 0813vsGPT-6 Astra Pro

DeepSeek V4 Pro 0813 is cheaper than GPT-6 Astra Pro at $0.66/M vs $10/M input tokens.

DeepSeek V4 Pro 0813 and GPT-6 Astra Pro compared across 6 shared prompts
Spec	DeepSeek V4 Pro 0813	GPT-6 Astra Pro
Input price	$0.66/M tokens	$10/M tokens
Output price	$1.98/M tokens	$50/M tokens
Context window	1.0M tokens	1.1M tokens
Weights	Open	Closed
Free API (OpenRouter)	No	No
Released	Aug 2026	Sep 2026

Our Verdict

DeepSeek V4 Pro 0813

GPT-6 Astra Pro

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

DeepSeek V4 Pro 0813 costs 25x 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 0813

Input

$0.66

15× cheaper

Output

$1.98

25× cheaper

GPT-6 Astra Pro

Input

$10.00

Output

$50.00

DeepSeek V4 Pro 0813 is cheaper on both: 15× input, 25× output.

Where to run it

22 hosts, cheapest first

DeepSeek V4 Pro 081320 hosts

HostInOutContextUptime

DeepSeek$0.66 in$1.98 out1M99.9% up StreamLake$0.98 in$2.95 out1M99.5% up Novitafp8$0.99 in$2.97 out1M99.9% up GMI Cloudfp8$1.06 in$3.17 out1M99.7% up Alibaba Cloud$1.12 in$3.37 out1M100% up NextBitfp8$1.12 in$3.37 out1M99.9% up

14 more hosts

DeepInfrafp8$1.30 in$2.60 out1M98.9% up CoreWeavefp8$1.31 in$3.96 out1M99.9% up Sail Researchfp4$1.31 in$3.94 out1M99.3% up Baidu Qianfanfp8$1.32 in$3.96 out1M100% up Basetenfp4$1.32 in$3.96 out1M98.9% up Cloudflare Workers AI$1.32 in$3.96 out1M96.7% up DigitalOcean$1.32 in$3.96 out1M99.7% up Fireworks$1.32 in$3.96 out1M99.8% up Parasailfp8$1.32 in$3.96 out1M99.9% up SiliconFlowfp8$1.32 in$3.96 out1M98.4% up Together$1.32 in$3.96 out1M98.8% up Phala$1.45 in$4.36 out1M99.2% up Venice$1.65 in$4.95 out1M96.3% up Ionstreamdegraded$0.96 in$2.88 out1M98.5% 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

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Cost per 1M tokens

22 hosts, cheapest first

What we learned reading every model

Common questions

What is the difference between DeepSeek V4 Pro 0813 and GPT-6 Astra Pro?

Which is better, DeepSeek V4 Pro 0813 or GPT-6 Astra Pro?

How much does DeepSeek V4 Pro 0813 cost compared to GPT-6 Astra Pro?

How can I compare DeepSeek V4 Pro 0813 and GPT-6 Astra Pro on Rival?

More comparisons

Against the newest arrivals

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Cost per 1M tokens

22 hosts, cheapest first

What we learned reading every model

Common questions

What is the difference between DeepSeek V4 Pro 0813 and GPT-6 Astra Pro?

Which is better, DeepSeek V4 Pro 0813 or GPT-6 Astra Pro?

How much does DeepSeek V4 Pro 0813 cost compared to GPT-6 Astra Pro?

How can I compare DeepSeek V4 Pro 0813 and GPT-6 Astra Pro on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages