Claude Sonnet 4.5 vs Hunyuan A13B Instruct
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 Claude Sonnet 4.5 and Hunyuan A13B Instruct.
Claude Sonnet 4.5
Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchmarks such as SWE-bench Verified, with...
Hunyuan A13B Instruct
Hunyuan-A13B is a 13B active parameter Mixture-of-Experts (MoE) language model developed by Tencent, with a total parameter count of 80B and support for reasoning via Chain-of-Thought. It offers competitive benchmark...
Technical Specifications
| Specification | Claude Sonnet 4.5 | Hunyuan A13B Instruct |
|---|---|---|
| Provider | Anthropic | Tencent |
| Context Window | 1,000,000 tokens | 131,072 tokens |
| Agent Suitability | 91/100 | N/A |
| Time to First Token (TTFT) | 380 ms | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2025-09-29 | 2025-07-08 |
API Pricing Comparison
Input Price per Million Tokens
Claude Sonnet 4.5
$3.00
Hunyuan A13B Instruct
$0.14
Output Price per Million Tokens
Claude Sonnet 4.5
$15.00
Hunyuan A13B Instruct
$0.57
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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.
Claude Sonnet 4.5 Quirks & Gotchas
- ▸Excellent for long-form writing and nuanced document analysis
- ▸Slightly slower than Sonnet 4.6 — upgrade for production agentic use
Hunyuan A13B Instruct Quirks & Gotchas
No developer gotchas reported.