Tencent: Hy4 preview
Analysis Summary
Hy4 preview is a tool-enabled Tencent model with function calling and a 1.05M token context. That makes it relevant to long-document analysis, agent prototypes, codebase navigation, and workflows that need structured external actions.
The preview designation and absence of benchmark data are important production constraints. There is no measured evidence here for reasoning quality, coding performance, instruction following, or sustained agent reliability. Pricing is not low enough to remove the need for quality validation, particularly when cheaper flash models are available. Evaluate it with bounded tasks and explicit monitoring before considering it for client automation or customer-facing content.
Assessed September 7, 2026
Editorial notes
Hy4 preview provides a 1.05M token context, tool use, and function calling at moderate pricing, but it has no benchmark data. It is suitable for controlled trials, not yet a proven production default.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
DFO Verdict
Hy4 preview provides a 1.05M token context, tool use, and function calling at moderate pricing, but it has no benchmark data. It is suitable for controlled trials, not yet a proven production default.
How Tencent: Hy4 preview compares
Its 1M-token context window is larger than 94% of the models we list. At $0.83 per million input tokens it is cheaper than 29% of comparable models.
Dark bar = input · light bar = output, scaled to the priciest peer.
1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.
Strongest on value. The pulled-in technical corner is the trade-off, and if the shape matters more than the price, this is your model.
Compare shapes side-by-side →Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $0.83 | $0.000834 |
| Output | $2.50 | $0.002501 |
What would Tencent: Hy4 preview cost your business?
Pick the job that looks most like yours, then fine-tune with the sliders. Estimates update live.
A website chatbot handling around 100 customer conversations a day, a few short messages each.
Full calculator with 772 models → Price Calculator
These numbers get smaller with the right architecture.
We route routine calls to cheap models and save Tencent: Hy4 preview for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout Tencent: Hy4 preview
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..
Frequently asked questions about Tencent: Hy4 preview
How much does Tencent: Hy4 preview cost?
Tencent: Hy4 preview costs $0.83 per million input tokens and $2.50 per million output tokens.
What is the context window of Tencent: Hy4 preview?
Tencent: Hy4 preview has a context window of 1,048,576 tokens (1M).
What can Tencent: Hy4 preview do?
Tencent: Hy4 preview supports tool use and function calling.
Who created Tencent: Hy4 preview?
Tencent: Hy4 preview is developed by Tencent and was released on August 28, 2026.