Gemini 2.5 Pro vs DeepSeek V3.1
Detailed technical comparison between Gemini 2.5 Pro (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 2.5 Pro
1,048,576 tokensTie
Equal CapabilityTie
Equal SpeedDeepSeek V3.1
$0.25 / MTokGemini 2.5 Pro
Gemini 2.5 Pro is Google’s state-of-the-art AI model designed for advanced reasoning, coding, mathematics, and scientific tasks. It employs “thinking” capabilities, enabling it to reason through responses with enhanced accuracy...
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 2.5 Pro | DeepSeek V3.1 |
|---|---|---|
| Provider | DeepSeek | |
| Context Window | 1,048,576 tokens🏆 | 163,840 tokens |
| Agent Suitability | 90/100 (est.) | Not yet benchmarked |
| Time to First Token (TTFT) | 450 ms (est.) | No public TTFT data |
| Deployment Model | managed api | self hostable |
| Production Stability | Stable GA (est.) | Stable GA (est.) |
| API Available | Yes | Yes |
| Released Date | 2025-06-17 | 2025-08-21 |
API Pricing Comparison
Input Price per Million Tokens
Gemini 2.5 Pro
$1.25
DeepSeek V3.1
$0.25
Output Price per Million Tokens
Gemini 2.5 Pro
$10.00
DeepSeek V3.1
$0.95
💡 Cost Ratio: DeepSeek V3.1 is 5.0x cheaper per input token than Gemini 2.5 Pro.
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 2.5 Pro Quirks & Gotchas
- ▸Legacy model — migrate to Gemini 3.1 Pro for better tool calling and lower latency
DeepSeek V3.1 Quirks & Gotchas
No developer gotchas reported.
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