DeepSeek V4 Flash vs Doubao Pro
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 Flash and Doubao Pro.
DeepSeek V4 Flash
DeepSeek V4 Flash is an efficiency-optimized Mixture-of-Experts model from DeepSeek with 284B total parameters and 13B activated parameters, supporting a 1M-token context window. It is designed for fast inference and...
Doubao Pro
Doubao Pro (่ฑๅ Pro) is ByteDance's flagship large language model, powering the Doubao AI assistant used by over 100 million monthly active users in China. Built by ByteDance's Seed team, Doubao Pro achieves top-tier results on Chinese-language benchmarks, excelling at long-context understanding, multimodal reasoning, and creative writing. Its architecture is optimized for the massive scale of ByteDance's inference infrastructure, enabling cost-efficient deployment across Douyin, TikTok, and enterprise API customers via Volcano Engine.
Technical Specifications
| Specification | DeepSeek V4 Flash | Doubao Pro |
|---|---|---|
| Provider | DeepSeek | ByteDance |
| Context Window | 1,048,576 tokens | 256,000 tokens |
| Agent Suitability | 86/100 | 86/100 |
| Time to First Token (TTFT) | 120 ms | 300 ms |
| Deployment Model | managed api | managed api |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2026-04-24 | 2026-01-15 |
API Pricing Comparison
Input Price per Million Tokens
DeepSeek V4 Flash
$0.09
Doubao Pro
$0.80
Output Price per Million Tokens
DeepSeek V4 Flash
$0.18
Doubao Pro
$1.60
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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 Flash Quirks & Gotchas
- โธBest cost-per-token ratio of any hosted API โ ideal for high-throughput pipelines
- โธLower agentic performance vs V4 Pro โ route complex tool calls accordingly
Doubao Pro Quirks & Gotchas
- โธMassive user base โ one of the most deployed Chinese models in production
- โธAPI available through Volcano Engine โ requires Chinese enterprise registration