Hunyuan 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 Hunyuan Pro and Llama 3.1 405B.
Hunyuan Pro
Hunyuan Pro (ๆททๅ Pro) is Tencent's flagship large language model developed by Tencent AI Lab, designed to power AI features across Tencent's vast ecosystem including WeChat, QQ, and enterprise cloud services. It achieves top-tier performance on Chinese-language benchmarks and strong multilingual capabilities, with native support for text, image, and video understanding. Hunyuan Pro is deployed at massive scale across Tencent's advertising, content recommendation, and customer service systems, processing billions of inference requests daily.
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 | Hunyuan Pro | Llama 3.1 405B |
|---|---|---|
| Provider | Tencent | Meta |
| Context Window | 256,000 tokens | 131,072 tokens |
| Agent Suitability | 85/100 | 90/100 |
| Time to First Token (TTFT) | 320 ms | 550 ms |
| Deployment Model | managed api | self hostable |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2025-11-01 | 2024-07-23 |
API Pricing Comparison
Input Price per Million Tokens
Hunyuan Pro
$0.60
Llama 3.1 405B
$0.80
Output Price per Million Tokens
Hunyuan Pro
$1.20
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.
Hunyuan Pro Quirks & Gotchas
- โธMassive daily inference volume โ battle-tested at WeChat scale
- โธAPI available through Tencent Cloud โ requires Chinese enterprise account
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