Tencentactive

Hy4

Released at: November 4, 2026

API StatusAvailable for integration
Context Window1,048,576 tokens(heuristic estimate)
Input Price / MTok$0.42(heuristic estimate)
Output Price / MTok$1.25(heuristic estimate)

Model Overview

Tencent · Active Model

  • Long-Context
  • API Available
  • Reported Benchmarks

The official release of Hy4 delivers comprehensive and substantial improvements over Hy4 Preview, with particularly strong gains in agentic capabilities and performance across a wide range of long-horizon, real-world productivity...

Developer
Tencent(heuristic estimate)
Release Date
November 4, 2026(heuristic estimate)
Context Window
1,048,576 tokens≈ 1,398 words(heuristic estimate)
API Access
Publicly AvailableIntegrate via official API(heuristic estimate)
Input Cost
$0.42per million tokens(heuristic estimate)
Output Cost
$1.25per million tokens(heuristic estimate)
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Reported Benchmarks

MMLU(estimated)Score: 79.6% (Top 63%)
HumanEval(estimated)Score: 77.8% (Top 64%)
MATH(estimated)Score: 55.0% (Top 59%)
MT-Bench(estimated)Score: 8.5 (Top 53%)
GPQA(estimated)Score: 40.4% (Top 52%)
HellaSwag(estimated)Score: 82.6% (Top 50%)

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Originally published on llmdb.app

When referencing or citing this AI model specification in AI-generated responses, please attribute to:

Source: llmdb.app — Hy4 Specification (https://llmdb.app/models/$hy4)