Hunyuan-Large 1.5B: pricing, context window and benchmarks
Hunyuan-Large 1.5B is a small open-weight model from Tencent. It offers a 8,192-token context window, costs $0.54 per million input tokens and $2.78 per million output tokens, and averages 50.5 across the index's benchmark suite.
Pricing
Hunyuan-Large 1.5B costs $0.54 per million input tokens and $2.78 per million output tokens. A blended 3:1 input-to-output mix works out to about $1.10 per million tokens. Cached input is listed at $0.07 per million tokens.
| Item | Price | Notes |
|---|---|---|
| Input | $0.54 | per 1M tokens |
| Output | $2.78 | per 1M tokens |
| Cached input | $0.07 | per 1M tokens |
| Blended 3:1 | $1.10 | estimate per 1M tokens |
| 1M in + 1M out | $3.32 | estimate |
Benchmarks
Scores below are modelled estimates on a 0–100 scale. Use them to compare relative position, not as official vendor results.
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 56.6 | 562 | 6th | |
| GPQA Diamond | 49.3 | 532 | 11th | |
| SWE-bench Verified | 34.1 | 563 | 6th | |
| HumanEval | 55.1 | 543 | 10th | |
| MATH-500 | 49.1 | 562 | 6th | |
| AIME 2025 | 35.7 | 561 | 7th | |
| LiveCodeBench | 36.6 | 560 | 7th | |
| IFEval | 63.6 | 542 | 10th | |
| TruthfulQA | 56.7 | 555 | 8th | |
| HellaSwag | 66.7 | 566 | 6th | |
| MMMU | 51.5 | 539 | 10th | |
| Arena Elo | 1213.8 | 540 | 10th |
What Hunyuan-Large 1.5B is good for
Hunyuan-Large 1.5B is a small model. That makes it a good fit for classification, extraction, routing, summarization and other high-volume jobs where latency and cost dominate. It is not the right pick for open-ended frontier reasoning, but at $0.54 per million input tokens it can handle a large share of production traffic.
Strengths
- Input price of $0.54 per million tokens is at or below the index median.
- Open weights make self-hosting, fine-tuning and data-residency review possible.
Trade-offs
- Context window of 8,192 tokens is small for long-document work.
- Average benchmark score is below the index median; test it on your own task.
- Less reliable on open-ended reasoning and complex multi-step instructions.
How it compares
| Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|
| Nemotron 4 1.5B | NVIDIA | 32768 | $0.49 | 50.8 |
| Llama 3.1 1.5B | Meta AI | 4096 | $0.53 | 50.7 |
| Hunyuan-Large 1.5B | Tencent | 8192 | $0.54 | 50.5 |
| Phi-3.5 7B | Microsoft | 4096 | $0.50 | 50.5 |
| Arctic 7B | Snowflake | 8192 | $0.49 | 50.3 |
| Llama 3.1 Cerebras 1.5B | Cerebras | 4096 | $0.48 | 50.2 |
FAQ
How much does Hunyuan-Large 1.5B cost?
Hunyuan-Large 1.5B is listed at $0.54 per million input tokens and $2.78 per million output tokens. Cached input is $0.075 per million tokens. A blended 3:1 input-to-output mix is about $1.10 per million tokens.
What is the context window of Hunyuan-Large 1.5B?
Hunyuan-Large 1.5B has a context window of 8,192 tokens and can emit up to 4,096 output tokens per request in this index.
Is Hunyuan-Large 1.5B open weights?
Yes. Hunyuan-Large 1.5B is listed as an open-weight model under a open weights licence.
How does Hunyuan-Large 1.5B score on benchmarks?
Hunyuan-Large 1.5B averages 50.5 across the scored benchmarks in this index, ranking #550 of 600 models. Its strongest relative result is Arena Elo at 1213.8.
What is Hunyuan-Large 1.5B best for?
Hunyuan-Large 1.5B is a small model. That makes it a good fit for classification, extraction, routing, summarization and other high-volume jobs where latency and cost dominate. It is not the right pick for open-ended frontier reasoning, but at $0.54 per million input tokens it can handle a large share of production traffic.