Author's Description
Tencent: Hy4 preview is a mixture-of-experts model from Tencent, with 49B active parameters out of 770B total. It is designed for coding agents, complex tool-use workflows, and productivity tasks that...
Key Specifications
Supported Parameters
This model supports the following parameters:
Features
This model supports the following features:
Performance Summary
Tencent: Hy4 preview, a 49B active parameter mixture-of-experts model from Tencent, demonstrates exceptional reliability, consistently providing usable responses with a 98% success rate across benchmarks. This model is positioned at premium pricing levels, ranking in the 9th percentile for cost. Its speed performance tends to be slower, placing it in the 4th percentile for response times. In terms of specific performance, Hy4 preview excels in Instruction Following, achieving 84.7% accuracy (90th percentile), and strong Reasoning capabilities with 98.0% accuracy (84th percentile). These strengths align with its design for coding agents, complex tool-use, and productivity tasks. However, its performance in the Ethics benchmark is moderate at 95.8% accuracy (24th percentile). A notable weakness across all benchmarks is the extended duration required for processing, contributing to its lower speed ranking. While highly accurate in key areas, the model's premium cost and longer response times are significant considerations for deployment.
Model Pricing
Current Pricing
| Feature | Price (per 1M tokens) |
|---|---|
| Prompt | $0.834 |
| Completion | $2.5 |
| Input Cache Read | $0.042 |
Price History
Available Endpoints
| Provider | Endpoint Name | Context Length | Pricing (Input) | Pricing (Output) |
|---|---|---|---|---|
|
Tencent
|
Tencent | tencent/hy4-preview-20260827 | 1M | $0.834 / 1M tokens | $2.5 / 1M tokens |
Benchmark Results
| Benchmark | Category | Reasoning | Strategy | Free | Executions | Accuracy | Cost | Duration |
|---|
Other Models by tencent
|
|
Released | Params | Context |
|
Speed | Ability | Cost |
|---|---|---|---|---|---|---|---|
| Tencent: Hy-MT2-1.8B | Aug 20, 2026 | 8B | 8K |
Text input
Text output
|
★★★★★ | ★ | $$ |
| Tencent: Hy-MT2-30B-A3B | Aug 20, 2026 | 30B | 8K |
Text input
Text output
|
★★★★ | ★★ | $$ |
| Tencent: Hy-MT2-7B | Aug 19, 2026 | 7B | 8K |
Text input
Text output
|
★★ | ★ | $$ |
| Tencent: Hy3 | Jul 06, 2026 | ~295B | 262K |
Text input
Text output
|
★ | ★★ | $$ |
| Tencent: Hy3 preview | Apr 22, 2026 | — | 262K |
Text input
Text output
|
★ | ★★★★ | $$$$ |
| Tencent: Hunyuan A13B Instruct | Jul 08, 2025 | 13B | 131K |
Text input
Text output
|
★★ | ★ | $$ |