Gemini 3.1 Pro Preview vs DeepSeek V3.1
Detailed technical comparison between Gemini 3.1 Pro Preview (Google) and DeepSeek V3.1 (DeepSeek). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.
Comparison Snapshot
Gemini 3.1 Pro Preview
1,048,576 tokensTie
Equal CapabilityTie
Equal SpeedDeepSeek V3.1
$0.25 / MTokGemini 3.1 Pro Preview
Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...
DeepSeek V3.1
DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...
Technical Specifications
🏆 = Superior Spec| Specification | Gemini 3.1 Pro Preview | DeepSeek V3.1 |
|---|---|---|
| Provider | DeepSeek | |
| Context Window | 1,048,576 tokens🏆 | 163,840 tokens |
| Agent Suitability | Not yet benchmarked | Not yet benchmarked |
| Time to First Token (TTFT) | No public TTFT data | No public TTFT data |
| Deployment Model | managed api | self hostable |
| Production Stability | Beta Access (est.) | Stable GA (est.) |
| API Available | Yes | Yes |
| Released Date | 2026-02-19 | 2025-08-21 |
API Pricing Comparison
Input Price per Million Tokens
Gemini 3.1 Pro Preview
$2.00
DeepSeek V3.1
$0.25
Output Price per Million Tokens
Gemini 3.1 Pro Preview
$12.00
DeepSeek V3.1
$0.95
💡 Cost Ratio: DeepSeek V3.1 is 8.0x cheaper per input token than Gemini 3.1 Pro Preview.
Want to test both models live?
Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.
Benchmark Performance Metrics
Standardized Scores (0–100%)Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.
Gemini 3.1 Pro Preview Quirks & Gotchas
No developer gotchas reported.
DeepSeek V3.1 Quirks & Gotchas
No developer gotchas reported.
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