Model tracker / Tencent
Hy4 Preview
Hy4 Preview is an everyday open-weight model from Tencent, released 28 August 2026. It's in preview. At DeepInfra it costs $0.834 per million input tokens and $2.50 per million output tokens, with a 1M-token context window. 2 providers serve it, and DeepInfra is the cheapest.
- Made by
- Tencent
- Released
- 2026-08-28
- Status
- Preview
- Tier
- Everyday
- Weights
- Open
- Context window
- 1,048,576 tokens
- Max output
- 131,072 tokens
- Input
- text
- API id
tencent/Hy4-preview
Hy4 Preview price at 2 providers
US dollars per million tokens. Blended is 3 input tokens for every output token, one number to compare on. The cheapest blended price is highlighted.
| Provider | Input | Output | Cached input | Blended | Batch | Checked |
|---|---|---|---|---|---|---|
| DeepInfra | $0.834 | $2.50 | $0.042 | $1.25 | – | 2026-10-19 |
| Novita AI · tencent/hy4-preview | $0.834 | $2.50 | $0.042 | $1.25 | – | 2026-10-19 |
- DeepInfra: Preview release of Tencent's 770B-parameter (49B active) MoE, Apache 2.0 weights.
- Novita AI: Preview release of Tencent's 770B-parameter (49B active) MoE, Apache 2.0 weights.
Hy4 Preview benchmarks
| Benchmark | Score | What it measures | Reported by |
|---|---|---|---|
| GPQA Diamond | 92.3% | graduate-level science questions answered correctly | Tencent |
Scores reported by a model's maker aren't independently checked.
Models like Hy4 Preview
Other everyday models closest in price, at each maker's own price or the cheapest provider.
| Model | Input | Output | Context | Weights |
|---|---|---|---|---|
| Hy4 Preview | $0.834 | $2.50 | 1M | Open |
| Step 5 Preview StepFun | $1.00 | $2.70 | 1M | Closed |
| NVIDIA Nemotron 3 Ultra NVIDIA | $0.50 | $2.20 | 262K | Open |
| Inkling Thinking Machines Lab | $1.00 | $4.05 | 524K | Open |
| DeepSeek V4 Pro DeepSeek | $1.32 | $3.96 | 1M | Open |
| Muse Spark Open Meta | $1.25 | $4.25 | 1M | Open |
Compare them all in the model tracker →
Hy4 Preview FAQ
How much does Hy4 Preview cost?
Hy4 Preview costs $0.834 per million input tokens and $2.50 per million output tokens at DeepInfra, and $0.042 per million cached input tokens. Prices are list prices in US dollars, last checked 19 October 2026.
What is Hy4 Preview's context window?
Hy4 Preview takes up to 1,048,576 tokens in one request and writes up to 131,072 tokens in one response.
Is Hy4 Preview open weight?
It's listed as open weight, but it's still in preview: check Tencent's announcement for when the weights and licence are published.
Where can I use Hy4 Preview?
Hy4 Preview is available from DeepInfra and Novita AI. At DeepInfra, call it as tencent/Hy4-preview.