Tencent: Hy3 preview
Hy3 preview is a reasoning model from Tencent released on Apr 20, 2026. It reads text and writes text, with a 262K token context window and up to 236K tokens per reply.
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It costs $0.18 per million input tokens and $0.60 per million output tokens. Cached input bills at $0.06, 67% less than fresh input.
It supports tool calling, structured JSON output and prompt caching, and its weights are open, so you can host it yourself.
4 providers serve it, including AIHubMix, ZenMux and Kilo Gateway. The lowest input price is $0.17 per million tokens at AIHubMix.
- Modalities
- In / out price
- $0.18 / $0.60 per 1M
- Context
- 262K
- Max output
- 236K
- Released
- Apr 20, 2026
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
Hy3 preview pricing
USD, as listed on Oct 15, 2026. Most bills are input heavy, so the cached input rate matters as much as the headline price.
| Input | $0.18 / 1M tokens | |
|---|---|---|
| Output | $0.60 / 1M tokens | |
| Cached input (read) | $0.06 / 1M tokens | 67% off input |
Hy3 preview providers
4 providers serve it, including AIHubMix, ZenMux and Kilo Gateway. The lowest input price is $0.17 per million tokens at AIHubMix. Each host sets its own price and limits, so the cheapest one is not always the one with the longest context.
| Provider | Input /M | Output /M | Cache read /M | Context | Max output |
|---|---|---|---|---|---|
| AIHubMix | $0.17 | $0.5667 | $0.051 | 256K | 128K |
| ZenMux | $0.172 | $0.572 | $0.058 | 256K | 64K |
| Kilo Gateway | $0.18 | $0.60 | $0.06 | 262K | 236K |
| Tencent TokenHub | n/a | n/a | – | 256K | 64K |
What Hy3 preview costs per month
Pick a workload close to yours or type your own volumes.
Supported request parameters
What you can set when you call Hy3 preview through an OpenAI compatible API.
- Tools
tools - Structured outputs
structured_outputs - Reasoning
reasoning - Temperature
temperature
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Hy3 preview questions
How much does the Hy3 preview API cost?
$0.18 per million input tokens and $0.60 per million output tokens, with cached input at $0.06. The estimator on this page turns that into a monthly bill for your own workload.
What is the context window of Hy3 preview?
262,144 tokens of input, and it can write up to 235,929 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Which providers serve Hy3 preview?
4 providers serve it, including AIHubMix, ZenMux and Kilo Gateway. The lowest input price is $0.17 per million tokens at AIHubMix. Prices differ by host, so the Providers table on this page lists each one with its input and output price.
Does Hy3 preview support tool calling?
Yes. It accepts tool definitions and can return JSON that matches a schema, which is what an agent needs to call your APIs.
Is Hy3 preview open source?
Its weights are published, so you can run it on your own hardware or a cloud of your choice. Read the license before commercial use.
When was Hy3 preview released?
Apr 20, 2026.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. The summary is written from these facts.
Building on Hy3 preview?
I test your real tasks on it and the two closest alternatives, then ship the agent on whichever wins on cost and accuracy.
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