Hunyuan A13B Instruct
Summary
Hunyuan A13B Instruct is an open-weight language model from Tencent (Hunyuan), released on 8 Jul 2025. It accepts text and generates text, with a 131K-token context window and up to 118K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $0.14 per million input tokens and $0.57 per million output tokens (OpenRouter), across 1 provider we track.
Hunyuan-A13B is a 13B active parameter Mixture-of-Experts (MoE) language model developed by Tencent, with a total parameter count of 80B and support for reasoning via Chain-of-Thought. It offers competitive benchmark...
Last verified 4 Oct 2026. Every figure on this page links to its source.
Specifications
| Developer | Tencent (Hunyuan) |
|---|---|
| Release date | 8 Jul 2025 [OpenRouter] |
| Status | Generally available |
| Weights | Open weights [Hugging Face] |
| License | tencent-hunyuan-a13b [Hugging Face] |
| Parameters | 80.4B [Hugging Face] |
| Context window | 131K (131,072 tokens) [OpenRouter] |
| Max output | 118K tokens [OpenRouter] |
| Knowledge cutoff | 31 Mar 2025 [OpenRouter] |
| Input | Text [OpenRouter] |
| Output | Text [OpenRouter] |
| Reasoning mode | Yes [OpenRouter] |
| Tool calling | No [OpenRouter] |
| Structured output | Yes [OpenRouter] |
| Hugging Face | tencent/Hunyuan-A13B-Instruct [Hugging Face] |
Hunyuan A13B Instruct API pricing by provider
USD per million tokens. Sorted by input price.
| Provider | Input | Output | Cached input | Context | Source |
|---|---|---|---|---|---|
| OpenRouter tencent/hunyuan-a13b-instruct | $0.14 | $0.57 | – | 131K | OpenRouter, 4 Oct 2026 |
Frequently asked questions
What is the context window of Hunyuan A13B Instruct?
Hunyuan A13B Instruct has a context window of 131,072 tokens (131K) and can generate up to 117,964 tokens in a single response, according to OpenRouter.
How much does the Hunyuan A13B Instruct API cost?
Hunyuan A13B Instruct is listed from $0.14 per million input tokens and $0.57 per million output tokens (OpenRouter). Prices last verified 4 Oct 2026.
Is Hunyuan A13B Instruct open source?
Hunyuan A13B Instruct is an open-weight model: its weights are published on Hugging Face as tencent/Hunyuan-A13B-Instruct under the tencent-hunyuan-a13b license. Check the license terms before commercial use.
When was Hunyuan A13B Instruct released?
Tencent (Hunyuan) released Hunyuan A13B Instruct on 8 Jul 2025, according to OpenRouter.
Change history
No changes detected since we started tracking this model. We re-check every source daily.