Price comparison · checked October 12, 2026

Gemini 3.5 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 3.5 Flash-Lite costs $72.00. That makes DeepSeek V4.1 Flash 3.0× cheaper for this workload.

Gemini 3.5 Flash-LiteDeepSeek V4.1 Flash
ProviderGoogleDeepSeek
Input / 1M$0.30$0.15
Cached input / 1M–$0.003
Output / 1M$2.50$0.60
Context window1M1M
Notes–Off-peak rate. Peak hours cost 2×

Monthly cost by workload

WorkloadGemini 3.5 Flash-LiteDeepSeek V4.1 FlashDifference
Support chatbot
60,000 req · 1,500 in / 300 out
$72.00$24.30DeepSeek V4.1 Flash 3.0× cheaper
Document summaries
20,000 req · 6,000 in / 400 out
$56.00$22.80DeepSeek V4.1 Flash 2.5× cheaper
Coding assistant
30,000 req · 4,000 in / 800 out
$96.00$32.40DeepSeek V4.1 Flash 3.0× cheaper
RAG search
100,000 req · 2,500 in / 250 out
$138$52.50DeepSeek V4.1 Flash 2.6× 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 3.5 Flash-Lite
Google
$72.00 /mo

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