Doubao Pro vs Llama 3.1 405B
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 Doubao Pro and Llama 3.1 405B.
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.
Llama 3.1 405B
Llama 3.1 405B is Meta's largest open-weight language model and one of the most capable openly available models in the world. With 405 billion parameters, it achieves performance competitive with GPT-4 and Claude Opus across benchmarks spanning general knowledge, mathematics, coding, and multilingual tasks. Llama 3.1 405B is released under Meta's custom commercial license, supporting broad use cases including deployment via major cloud providers (AWS, GCP, Azure) and self-hosted inference with multi-GPU configurations.
Technical Specifications
| Specification | Doubao Pro | Llama 3.1 405B |
|---|---|---|
| Provider | ByteDance | Meta |
| Context Window | 256,000 tokens | 131,072 tokens |
| Agent Suitability | 86/100 | 90/100 |
| Time to First Token (TTFT) | 300 ms | 550 ms |
| Deployment Model | managed api | self hostable |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2026-01-15 | 2024-07-23 |
API Pricing Comparison
Input Price per Million Tokens
Doubao Pro
$0.80
Llama 3.1 405B
$0.80
Output Price per Million Tokens
Doubao Pro
$1.60
Llama 3.1 405B
$0.80
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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.
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
Llama 3.1 405B Quirks & Gotchas
- โธMassive model โ requires 8ร A100 80GB for FP16 inference
- โธAvailable via Together AI, Fireworks, and Bedrock as managed API