tencent
Tencent Hy4 Preview
Tencent Hy4 preview is Tencent Hy’s open-source large language model, featuring 770B total parameters, 49B active parameters, and a context window exceeding 1 million tokens. Built for real-world productivity, it supports long-horizon coding, cross-document analysis, office content creation, game development, and scientific reasoning, making it well-suited to complex agents and multi-step professional workflows.
reasoningtool useimplicit cachingtext
Overview
- Type
- language
- Context
- 1M
- Max output
- 64K
- Input / output
- text / text
API
Model identifier
tencent/hy4-previewProviders and live performance
Rolling Gateway metrics. Latency is time to first token; throughput is output tokens per second.
| Provider | Status | Latency | Throughput | Uptime 15m / 1h / 1d | Input | Output | Cache read / write | Discount | Regions | ZDR | No training |
|---|---|---|---|---|---|---|---|---|---|---|---|
| tencent | Operational | 2.04s / 3.79s | 68.5 / 69.0 tok/s | 100.00% / 100.00% / 100.00% | $0.83/M | $2.50/M | $0.04/M / — | — | — | No | No |
Pricing
input
0.000000834
output
0.000002501
input cache read
0.000000042
Capabilities
reasoningtool useimplicit cachingtext
Supported parameters
max tokens
Yes
temperature
Yes
stop
Yes
tools
Yes
tool choice
Yes
reasoning
Yes
include reasoning
Yes
Reasoning options
options
{
"type": "effort",
"values": [
"none",
"high"
]
}
Metadata
type
language
context window
1M
max output
64K
released
Aug 28, 2026
temperature control
Yes
zero data retention
none
no training
none
api specifications
v2, v3, v4