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Model comparison

Hunyuan Hy4 preview vs Hunyuan Hy3

TencentHunyuan Hy4 preview
Input
$0.834
Output
$2.501
Context
1M
Released
2026-08-28
Full model page →TencentHunyuan Hy3
Input
¥1.00
Output
¥4.00
Context
256K
Released
2026-07-06
Full model page →
Short answer

Hunyuan Hy4 preview scores higher on 2 of the 3 benchmarks both models report (the other leads on 1); Hunyuan Hy4 preview has the larger context window (1M vs 256K).

Specs and pricing side by side

SpecHunyuan Hy4 previewHunyuan Hy3
MakerTencentTencentsame
Released2026-08-282026-07-06
Context window1M256K
Input price$0.834¥1.00
Output price$2.501¥4.00
Parameters770B total · 49B active295B total · 21B active
LicenseApache-2.0Apache-2.0same
WeightsOpen weightsOpen weightssame
ModalitiesTextTextsame

Not published by either maker: max output, knowledge cutoff.

Benchmarks both models report

BenchmarkHunyuan Hy4 previewHunyuan Hy3
GPQA Diamond92.3%90.4%
SWE-bench Pro65.7%57.9%
HLE43.4%53.2%

Scores are as published by each maker or its cited source; harness, reasoning effort and date can differ between rows, so treat small gaps as ties. Sources are listed on each model page.

Which one should you pick?

Pick Hunyuan Hy4 preview if…

  • You care about GPQA Diamond, SWE-bench Pro (it scores higher on 2 shared benchmarks).
  • You need the longer context (1M vs 256K).
  • Your use case is: self-hosted agentic coding and long-horizon software engineering via vLLM or SGLang.

Pick Hunyuan Hy3 if…

  • You care about HLE (it scores higher on 1 shared benchmark).
  • Your use case is: self-hosted agentic coding, tool use and terminal automation via vLLM or SGLang recipes.

FAQ

Which is better, Hunyuan Hy4 preview or Hunyuan Hy3?

Hunyuan Hy4 preview scores higher on 2 of the 3 benchmarks both models report (the other leads on 1); Hunyuan Hy4 preview has the larger context window (1M vs 256K). The better pick depends on whether you value benchmark scores, price per token, context length or openness for your workload.

What are the context windows of Hunyuan Hy4 preview and Hunyuan Hy3?

Hunyuan Hy4 preview offers 1M; Hunyuan Hy3 offers 256K.

Is Hunyuan Hy4 preview newer than Hunyuan Hy3?

Hunyuan Hy4 preview was released 2026-08-28; Hunyuan Hy3 was released 2026-07-06.

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