DeepSeek-V3.1 vs Gemini 3 Flash: Specs & Benchmark Comparison
| Characteristic | DeepSeek-V3.1 | Gemini 3 Flash |
|---|---|---|
| Company | DeepSeek | |
| Release Date | January 9, 2025 | December 16, 2025 |
| Parameters | 671B | — |
| Multimodal | No | Yes |
| Context (input) | 164K | 1.0M |
| Context (output) | 164K | 66K |
| Input Price / 1M | $0.27 | $0.50 |
| Output Price / 1M | $1.00 | $3.00 |
| Average Score | 0.8 | 0.9 |
| Benchmarks | ||
| GPQA | 0.8 | 0.9 |
Visual Benchmark Comparison
DeepSeek-V3.1
Gemini 3 Flash
GPQA0.8 vs 0.9
0.8
0.9
Verdict
Gemini 3 Flash leads in 2 out of 4 comparison categories.
Overall Performance
Both models show comparable average scores: DeepSeek-V3.1 — 0.8, Gemini 3 Flash — 0.9.
API Cost
DeepSeek-V3.1 is 2.8x cheaper: input $0.27/1M vs $0.50/1M tokens.
Context Window
Gemini 3 Flash supports a larger context: 1M vs 164K tokens.
Recency
Gemini 3 Flash is newer: released 12/16/2025 vs 1/9/2025.
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Frequently Asked Questions
Which is better for coding — DeepSeek-V3.1 or Gemini 3 Flash?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — DeepSeek-V3.1 or Gemini 3 Flash?
DeepSeek-V3.1 is cheaper for input: $0.27 per 1M tokens vs $0.50.
Which has a larger context window — DeepSeek-V3.1 or Gemini 3 Flash?
Gemini 3 Flash supports a larger context: 1,048,576 tokens vs 163,840.
The DeepSeek-V3.1 and Gemini 3 Flash comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the DeepSeek-V3.1 or Gemini 3 Flash page. See also the complete list of AI model comparisons.