UltraGPT
Tencent: Hy3 preview
Hy3 preview is a high-efficiency Mixture-of-Experts model from Tencent designed for agentic workflows and production use. It supports configurable reasoning levels across disabled, low, and high modes, allowing it to...
Intelligence overview
262.1K tok
Context window
235.9K tok
Max output
What Tencent: Hy3 preview can do.
Reasoning
Extended reasoning
Works through problems step by step before answering, trading latency for accuracy on harder tasks.
Adjustable effort
Choose how much the model deliberates per request — trade speed for depth as the task demands.
Development
Tool calling
Calls external functions mid-response, then continues reasoning from the result.
Streaming
Streams tokens as they're generated instead of waiting on the full response.
Performance
Pay for what you use.
Every model in UltraGPT runs behind one flat subscription — this is the underlying per-token cost the catalog tracks.
$0.18 / 1M tok
$0.6 / 1M tok
Built for serious work.
Build
Generate and refactor code, with the ability to run and verify tool calls.
Think
Works through hard problems with adjustable reasoning effort — high, low, none.
Research
Holds up to 262.1K tokens of source material in context without losing the thread.
Automate
Chains tool calls across multi-step workflows, reasoning between each one.
Ask Tencent: Hy3 preview anything.
A preview of the real UltraGPT composer — the model you see here is the model you get.
Continues in the UltraGPT app — one login, every model.
How Tencent: Hy3 preview stacks up.
The closest models in the catalog by provider, capability and score — real entries, pulled from the same directory.
Technical details.
Specification
- Context window
- 262.1K tokens
- Max output
- 235.9K tokens
- Input modalities
- Text
- Output modalities
- Text
- Release date
- Apr 22, 2026
- Reasoning effort
- high, low, none
- Streaming
- Supported
- Tool calling
- Supported
- JSON mode
- Not supported
Reasoning
More from Tencent, and everything else.
This model is one entry in the full UltraGPT catalog — browse the rest, compare pricing and context windows, or filter by capability.