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DeepSeek V4 Flash 0731 vs Gemini 3.1 Pro
List-price comparison ·DeepSeek V4 Flash 0731 details ·Gemini 3.1 Pro details
For a typical workload (100,000 requests / mo), DeepSeek V4 Flash 0731 is the cheapest — 98% less than the priciest here ($12.00/mo vs $720.00/mo).
| DeepSeek V4 Flash 0731 | Gemini 3.1 Pro | |
|---|---|---|
| Input / 1M tokens | $0.060 | $2.00 |
| Output / 1M tokens | $0.120 | $12.00 |
| Typical request (1,200 in + 400 out) | $0.0001 | $0.0072 |
| Context window | 1,310,720 tokens | 1,048,576 tokens |
| Max output | 943,718 tokens | 65,536 tokens |
| Quality score | 76/100 | 93/100 |
| Tier | Flash | Flagship |
| Provider | DeepSeek |
Projected monthly cost
| Requests / mo | DeepSeek V4 Flash 0731 | Gemini 3.1 Pro |
|---|---|---|
| 1,000 | $0.12 | $7.20 |
| 10,000 | $1.20 | $72.00 |
| 100,000 | $12.00 | $720.00 |
DeepSeek V4 Flash 0731
Auto-synced from OpenRouter — no editorial write-up yet.
Gemini 3.1 Pro
Native audio, video, and document understanding with a ~1M token context window — strong fit for multi-modal RAG and large-document analysis.
Output token cost is steep relative to input, and the largest context windows can be slow to fill — chunk large documents where possible.
More comparisons
Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.