Price comparison · checked October 12, 2026

Gemini 3.1 Flash-Lite vs DeepSeek V4.1 Flash pricing

For a typical support chatbot (60,000 conversations a month), DeepSeek V4.1 Flash costs $24.30 a month and Gemini 3.1 Flash-Lite costs $49.50. That makes DeepSeek V4.1 Flash 2.0× cheaper for this workload.

Gemini 3.1 Flash-LiteDeepSeek V4.1 Flash
ProviderGoogleDeepSeek
Input / 1M$0.25$0.15
Cached input / 1M–$0.003
Output / 1M$1.50$0.60
Context window1M1M
NotesAudio input $0.50Off-peak rate. Peak hours cost 2×

Monthly cost by workload

WorkloadGemini 3.1 Flash-LiteDeepSeek V4.1 FlashDifference
Support chatbot
60,000 req · 1,500 in / 300 out
$49.50$24.30DeepSeek V4.1 Flash 2.0× cheaper
Document summaries
20,000 req · 6,000 in / 400 out
$42.00$22.80DeepSeek V4.1 Flash 1.8× cheaper
Coding assistant
30,000 req · 4,000 in / 800 out
$66.00$32.40DeepSeek V4.1 Flash 2.0× cheaper
RAG search
100,000 req · 2,500 in / 250 out
$100$52.50DeepSeek V4.1 Flash 1.9× cheaper

Standard rates, no caching or batch discounts. Sources: ai.google.dev · api-docs.deepseek.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 V4.1 Flash
DeepSeekCheapest
$24.30 /mo
Gemini 3.1 Flash-Lite
Google
$49.50 /mo

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