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Model details

Hy-MT2-1.8B

Hy-MT2-1.8B is presented as a small-scale entry in Tencent's Hy family, aimed at lightweight text-to-text generation tasks where efficiency matters more than maximum coverage. The naming follows a conventional parameter-style label, signaling a design intended for lower-latency, lower-cost scenarios such as short-form translation, summarization, and conversational assistants, rather than for heavyweight long-context workloads. Because authoritative Tencent documentation is not present in the available evidence, the model's exact training approach, architectural choices, and intended deployment niches should be inferred from its compact positioning rather than from confirmed technical disclosures.

From an evaluation standpoint, the model is catalogued on third-party comparison platforms but currently lacks shared benchmark evidence against peer models, leaving performance judgments qualitative. Independent comparison aggregators list Hy-MT2-1.8B under Tencent with "evidence status unavailable" and no comparable scores alongside other compact models, which means prospective users should rely on small-scale pilots and qualitative review rather than on published leaderboard positions. In practical terms, this positions Hy-MT2-1.8B as a sensible option for cost-sensitive, short-prompt use cases where modest quality and predictable behavior are acceptable, while longer-context or accuracy-critical workloads remain an open question pending stronger published evaluations.

OpenRoutertencent/hy-mt2-1.8bHy

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Provider
OpenRouter
Model key
tencent/hy-mt2-1.8b
Release date
Aug 20, 2026
Last updated
Aug 20, 2026
Input modalities
Output modalities
Capabilities

Cost

Input token cost
$0.044
Output token cost
$0.177

Limits

Output tokens
4,096 tokens
Context window
8,192 tokens

Transparent token rates

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Rates are shown per one million tokens. Combined means one million input plus one million output tokens.

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Latest news about Hy-MT2-1.8B

OpenRouter

CoverageBenchmark

BenchmarkList provides model-specific evaluation data for Hy-MT2-1.8B, listing self-reported scores dated May 26, 2026 across five benchmarks. These include MAXIFE at 56.17% (general multilingual instruction following), IFEval at 80.22% (instruction following with verifiable constraints), IFBench at 35.3% (complex inst The page lists a pricing row of $0.044 per 1M input tokens and $0.177 per 1M output tokens for Hy-MT2-1.8B. The IFMTBench entry describes its methodology: 4,506 single-constraint and 2,838 multi-constraint items across six constraint dimensions and five compositional patterns, with instructions issued in all seven lang

OpenRouter

CoveragePreview

The ThursdAI Tencent release index records the Hy-MT2 launch on May 28, 2026, under Apache 2.0, explicitly naming both the Hy-MT2-1.8B and Hy-MT2-30B-A3B variants. The Hy-MT2-1.8B is described as a tiny, free, locally-runnable model that the cited coverage claims outperforms paid translation APIs such as Microsoft Tran The same index catalogs 18 Tencent releases since January 2025, with 13 shipped as open weights, placing Hy-MT2-1.8B within Tencent's broader Hunyuan open-source output spanning translation, 3D generation, OCR, and large MoE models. The most recent Tencent release noted is the Hy4 preview on September 3, 2026, a 770B/4

OpenRouter

Coverage

Tencent Hunyuan open-sourced its Hy-MT2 multilingual translation model family on May 21, 2026, with the Hy-MT2-1.8B variant explicitly named as a lightweight mobile-optimized model. The model uses Tencent's self-developed AngelSlim 1.25-bit extreme quantization to compress to roughly 440MB, enabling local offline infer The Hy-MT2 family covers bidirectional translation across 33 languages plus five ethnic languages/dialects, with sibling variants Hy-MT2-7B (balanced speed/performance) and Hy-MT2-30B-A3B (a new mixture-of-experts flagship). According to the report's cited official evaluations, Hy-MT2-1.8B reached 88.1% of Gemini 3.1 P

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