Price comparison · checked October 12, 2026

GPT-6 Astra vs DeepSeek V4 Pro pricing

For a typical support chatbot (60,000 conversations a month), DeepSeek V4 Pro costs $95.04 a month and GPT-6 Astra costs $1,800. That makes DeepSeek V4 Pro 19× cheaper for this workload.

GPT-6 AstraDeepSeek V4 Pro
ProviderOpenAIDeepSeek
Input / 1M$10.00$0.66
Cached input / 1M$1.00$0.022
Output / 1M$50.00$1.98
Context window1.05M1M
NotesShort-context rateOff-peak rate. Peak hours cost 2×

Monthly cost by workload

WorkloadGPT-6 AstraDeepSeek V4 ProDifference
Support chatbot
60,000 req · 1,500 in / 300 out
$1,800$95.04DeepSeek V4 Pro 19× cheaper
Document summaries
20,000 req · 6,000 in / 400 out
$1,600$95.04DeepSeek V4 Pro 17× cheaper
Coding assistant
30,000 req · 4,000 in / 800 out
$2,400$127DeepSeek V4 Pro 19× cheaper
RAG search
100,000 req · 2,500 in / 250 out
$3,750$214DeepSeek V4 Pro 17× cheaper

Standard rates, no caching or batch discounts. Sources: api-docs.deepseek.com · developers.openai.com

Try your own numbers

Start from a use case

1,000 tokens is about 750 English words. Input includes your system prompt, chat history and any retrieved documents.

DeepSeek V4 Pro
DeepSeekCheapest
$95.04 /mo
GPT-6 Astra
OpenAI
$1,800 /mo

Related comparisons