GOOGLE VS DEEPSEEK
Gemini 3.1 Flash-Lite vs DeepSeek V4 Pro
DeepSeek V4 Pro is about 1.0x cheaper than Gemini 3.1 Flash-Lite on a blended 3:1 input:output rate — the same 10K-in/2K-out request costs $0.0055 vs $0.0061. Gemini 3.1 Flash-Lite has the larger context window (1,048,576 vs 1,000,000 tokens).
Pricing verified
API pricing per 1M tokens
| Model | Input / 1M tokens | Output / 1M tokens | Blended (3:1 mix) |
|---|---|---|---|
| Gemini 3.1 Flash-Lite | $0.25 | $1.50 | $0.563 |
| DeepSeek V4 Pro | $0.435 | $0.87 | $0.544 |
Rates from official Google pricing and official DeepSeek pricing, checked 2026-08-11. Note: DeepSeek made its promotional rate the official list price after 2026-05-31.
What a real workload costs
Example: one request with 10,000 input tokens and 2,000 output tokens, then that request at 100,000 runs per month.
| Model | Per request (10K in / 2K out) | Per month (100K requests) | Monthly delta |
|---|---|---|---|
| Gemini 3.1 Flash-Lite | $0.0055 | $550 | — |
| DeepSeek V4 Pro | $0.0061 | $609 | +$59 |
Model your own prompt sizes and volumes in the token cost analyzer, or check caching savings with the prompt caching calculator.
Specs side by side
| Spec | Gemini 3.1 Flash-Lite | DeepSeek V4 Pro |
|---|---|---|
| Provider | DeepSeek | |
| Context window | 1,048,576 tokens | 1,000,000 tokens |
| Model class | General text | Reasoning |
| Tokenizer | Proprietary (counts estimated) | Proprietary (counts estimated) |
Count tokens for each model on its own page: Gemini 3.1 Flash-Lite token counter and DeepSeek V4 Pro token counter. All Google models are on the Gemini Token Counter. All DeepSeek models are on the DeepSeek Token Counter.
FAQ
Gemini 3.1 Flash-Lite vs DeepSeek V4 Pro FAQ
Which is cheaper, Gemini 3.1 Flash-Lite or DeepSeek V4 Pro?
DeepSeek V4 Pro is cheaper. At rates checked 2026-08-11, Gemini 3.1 Flash-Lite costs $0.25 input / $1.50 output per 1M tokens, while DeepSeek V4 Pro costs $0.435 input / $0.87 output — about a 1.0x difference on a typical 3:1 input-heavy workload.
How much does a real request cost on Gemini 3.1 Flash-Lite vs DeepSeek V4 Pro?
A request with 10,000 input tokens and 2,000 output tokens costs about $0.0055 on Gemini 3.1 Flash-Lite and $0.0061 on DeepSeek V4 Pro. At 100,000 such requests per month that is $550 vs $609 — a difference of $59 per month.
Which has the bigger context window, Gemini 3.1 Flash-Lite or DeepSeek V4 Pro?
Gemini 3.1 Flash-Lite. It supports 1,048,576 tokens of context versus 1,000,000 tokens — roughly 786,000 English words in one request.
Do Gemini 3.1 Flash-Lite and DeepSeek V4 Pro count tokens the same way?
Not exactly. Gemini 3.1 Flash-Lite uses a proprietary tokenizer (counts are estimates) and DeepSeek V4 Pro uses a proprietary tokenizer (counts are estimates). The same prompt will tokenize differently, which shifts effective cost per word.