DeepSeek V4 Pro vs Gemini 3.1 Flash Lite
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for DeepSeek V4 Pro and Gemini 3.1 Flash Lite.
DeepSeek V4 Pro
DeepSeek V4 Pro is a large-scale Mixture-of-Experts model from DeepSeek with 1.6T total parameters and 49B activated parameters, supporting a 1M-token context window. It is designed for advanced reasoning, coding,...
Gemini 3.1 Flash Lite
Gemini 3.1 Flash Lite is Google’s GA high-efficiency multimodal model optimized for low-latency, high-volume workloads. It supports text, image, video, audio, and PDF inputs, and is designed for lightweight agentic...
Technical Specifications
| Specification | DeepSeek V4 Pro | Gemini 3.1 Flash Lite |
|---|---|---|
| Provider | DeepSeek | |
| Context Window | 1,048,576 tokens | 1,048,576 tokens |
| Agent Suitability | 94/100 | N/A |
| Time to First Token (TTFT) | 280 ms | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | stable | beta |
| API Available | Yes | Yes |
| Released Date | 2026-04-24 | 2026-05-07 |
API Pricing Comparison
Input Price per Million Tokens
DeepSeek V4 Pro
$0.43
Gemini 3.1 Flash Lite
$0.25
Output Price per Million Tokens
DeepSeek V4 Pro
$0.87
Gemini 3.1 Flash Lite
$1.50
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Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
DeepSeek V4 Pro Quirks & Gotchas
- ▸MoE architecture — cold-start latency on first request, use keep-alive
- ▸Best cost-performance ratio of any frontier model — strong tool calling for agentic use
Gemini 3.1 Flash Lite Quirks & Gotchas
No developer gotchas reported.