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DeepSeek R1 vs Gemini 3.5 Flash-Lite
List-price comparison ·DeepSeek R1 details ·Gemini 3.5 Flash-Lite details
For a typical workload (100,000 requests / mo), Gemini 3.5 Flash-Lite is the cheapest — 7% less than the priciest here ($136.00/mo vs $146.00/mo).
| DeepSeek R1 | Gemini 3.5 Flash-Lite | |
|---|---|---|
| Input / 1M tokens | $0.500 | $0.300 |
| Output / 1M tokens | $2.15 | $2.50 |
| Typical request (1,200 in + 400 out) | $0.0015 | $0.0014 |
| Context window | 163,840 tokens | 1,048,576 tokens |
| Max output | 32,768 tokens | 65,536 tokens |
| Quality score | 84/100 | 58/100 |
| Tier | Flagship | Flash |
| Provider | DeepSeek |
Projected monthly cost
| Requests / mo | DeepSeek R1 | Gemini 3.5 Flash-Lite |
|---|---|---|
| 1,000 | $1.46 | $1.36 |
| 10,000 | $14.60 | $13.60 |
| 100,000 | $146.00 | $136.00 |
DeepSeek R1
Chain-of-thought reasoning competitive with closed flagship models on math and logic benchmarks, at open-weight pricing.
Emits long reasoning traces that inflate output token counts and cost — cap reasoning length or use a distilled variant for latency-sensitive paths.
Gemini 3.5 Flash-Lite
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Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.