Gemini 3.5 Flash-Lite vs DeepSeek V4 Pro
Compare Gemini 3.5 Flash-Lite vs DeepSeek V4 Pro API pricing, token costs, context windows, and latency. See which model is cheaper and better for your stack.
Gemini 3.5 Flash-Lite charges $0.30/1M input and $2.50/1M output tokens, compared to DeepSeek V4 Pro at $0.66/1M input and $1.98/1M output. Gemini 3.5 Flash-Lite is 2.2x cheaper on input tokens. In reasoning benchmarks, DeepSeek V4 Pro holds the higher AA Intelligence Index rating (23/100). For latency-critical streaming, Gemini 3.5 Flash-Lite delivers 317 t/s (5.0s TTFT) while DeepSeek V4 Pro provides 80 t/s (59.0s TTFT).
Full Metric & Specification Comparison
| Metric | Gemini 3.5 Flash-Lite | DeepSeek V4 Pro | Advantage |
|---|---|---|---|
| Provider | DeepSeek | - | |
| Input Token Cost (1M) | $0.300 | $0.660 | Gemini 3.5 Flash-Lite |
| Output Token Cost (1M) | $2.500 | $1.980 | DeepSeek V4 Pro |
| Context Window | 1,000k tokens | 1,000k tokens | Tie |
| AA Intelligence Index | 12/100 | 23/100 | DeepSeek V4 Pro |
| Streaming Latency | Ultra-Fast | Moderate | - |
Key Architectural Takeaways
- Input Token Cost: Gemini 3.5 Flash-Lite is $0.30/1M vs DeepSeek V4 Pro at $0.66/1M
- Output Token Cost: Gemini 3.5 Flash-Lite is $2.50/1M vs DeepSeek V4 Pro at $1.98/1M
- Context Window: Gemini 3.5 Flash-Lite supports 1,000k tokens vs DeepSeek V4 Pro with 1,000k tokens
- Benchmark Intelligence Rating: Gemini 3.5 Flash-Lite scores 12/100 vs DeepSeek V4 Pro at 23/100 (AA Index v5)
- Inference Latency: Gemini 3.5 Flash-Lite is rated Ultra-Fast vs DeepSeek V4 Pro rated Moderate
Calculate Your Team's Exact Bill Difference
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Deploying Gemini 3.5 Flash-Lite over DeepSeek V4 Pro saves $1.50/mo ($18/yr) at this volume.
Frequently Asked Questions
Is Gemini 3.5 Flash-Lite cheaper than DeepSeek V4 Pro?
Gemini 3.5 Flash-Lite is significantly more economical, charging $0.30/1M input compared to $0.66/1M for DeepSeek V4 Pro.
Which model should I choose for production?
If your primary constraint is API cost and high query throughput, choose Gemini 3.5 Flash-Lite. If you require peak reasoning accuracy and complex tool use, DeepSeek V4 Pro is recommended.
How does context window compare between Gemini 3.5 Flash-Lite and DeepSeek V4 Pro?
Gemini 3.5 Flash-Lite offers the larger context window (1,000k tokens), allowing you to pass significantly larger codebases or documents without chunking.
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