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Gemini 3.1 Flash-Lite vs DeepSeek V4 Flash
Gemini 3.1 Flash-Lite at $0.25/$1.50 vs DeepSeek V4 Flash at $0.14/$0.28. DeepSeek V4 Flash is 44% cheaper on input and 81% cheaper on output. The cheapest models available from major providers.
Pricing data verified: Jul 4, 2026
| Specification | Gemini 3.1 Flash-Lite (Google) | DeepSeek V4 Flash (DeepSeek) |
|---|---|---|
| Input Price (per 1M tokens) | $0.25 | $0.14 |
| Output Price (per 1M tokens) | $1.50 | $0.28 |
| Context Window | 1M tokens | 1M tokens |
| Tier | Budget | Budget |
| Provider | DeepSeek |
Calculate Your Exact Savings
DeepSeek V4 Flash is dramatically cheaper on both input and output. See the ultra-low costs at your usage level.
Which Model for Which Use Case?
Ultra-High-Volume Processing
When you need to process billions of tokens monthly, DeepSeek V4 Flash at $0.14/$0.28 is the cheapest option. At 100M input + 100M output tokens, DeepSeek costs $42 vs Gemini's $175 — saving $133/month.
Cost-Sensitive Chatbots
For chatbots where every fraction of a cent matters, DeepSeek V4 Flash at $0.14/$0.28 offers the lowest cost per conversation. At 1M messages, DeepSeek costs $0.56 vs Gemini's $2.00.
Data Processing Pipelines
ETL pipelines, data transformation. DeepSeek's 44% input savings and 81% output savings make it the clear winner for data-heavy pipelines. Both handle structured data well.
Quality vs Cost
DeepSeek V4 Flash is cheapest, but Gemini 3.1 Flash-Lite may produce higher quality for complex tasks. Google's training may give Gemini an edge on benchmarks. Test both on your workload.
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Frequently Asked Questions
How much cheaper is DeepSeek V4 Flash than Gemini 3.1 Flash-Lite?
DeepSeek V4 Flash costs $0.14/$0.28 per 1M tokens while Gemini 3.1 Flash-Lite costs $0.25/$1.50. That's 44% cheaper on input and 81% cheaper on output. At 1M input + 1M output tokens/month, DeepSeek costs $0.42 vs Gemini's $1.75 — saving $1.33/month. At 100M+100M tokens, savings reach $133/month.
Which model has a larger context window?
Both models have 1M token context windows. They're equal in context capacity, handling extremely long documents and codebases. Context is not a differentiator between these two models.
Is DeepSeek V4 Flash or Gemini 3.1 Flash-Lite better quality?
Quality depends on the task. DeepSeek V4 Flash at $0.14/$0.28 is the cheapest option. Gemini 3.1 Flash-Lite at $0.25/$1.50 may produce higher quality for complex reasoning. For simple tasks, quality is similar.
When should I choose Gemini 3.1 Flash-Lite over DeepSeek V4 Flash?
Choose Gemini 3.1 Flash-Lite ($0.25/$1.50) when you need Google ecosystem integration or find Gemini produces better quality for your tasks. Choose DeepSeek V4 Flash ($0.14/$0.28) for 44-81% cost savings on high-volume workloads.