# Magnum v4 72B

> Magnum v4 72B is an open-weight language model from Anthracite ORG, released on 22 Oct 2024. It accepts text and generates text, with a 33K-token context window and up to 4K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $2.50 per million input tokens and $5 per million output tokens (OpenRouter), across 1 provider we track.

Source page: https://www.aimodel.directory/models/magnum-v4-72b
Last verified: 4 Oct 2026

## Specifications

- **Developer:** Anthracite ORG
- **Release date:** 22 Oct 2024 (source: OpenRouter, https://openrouter.ai/anthracite-org/magnum-v4-72b)
- **Status:** Generally available
- **Weights:** Open weights (source: Hugging Face, https://huggingface.co/anthracite-org/magnum-v4-72b)
- **License:** apache-2.0 (source: Hugging Face, https://huggingface.co/anthracite-org/magnum-v4-72b)
- **Parameters:** 72.7B (source: Hugging Face, https://huggingface.co/anthracite-org/magnum-v4-72b)
- **Context window:** 33K (32,768 tokens) (source: OpenRouter, https://openrouter.ai/anthracite-org/magnum-v4-72b)
- **Max output:** 4K tokens (source: OpenRouter, https://openrouter.ai/anthracite-org/magnum-v4-72b)
- **Knowledge cutoff:** 30 Jun 2024 (source: OpenRouter, https://openrouter.ai/anthracite-org/magnum-v4-72b)
- **Input:** Text (source: OpenRouter, https://openrouter.ai/anthracite-org/magnum-v4-72b)
- **Output:** Text (source: OpenRouter, https://openrouter.ai/anthracite-org/magnum-v4-72b)
- **Reasoning mode:** No (source: OpenRouter, https://openrouter.ai/anthracite-org/magnum-v4-72b)
- **Tool calling:** No (source: OpenRouter, https://openrouter.ai/anthracite-org/magnum-v4-72b)
- **Structured output:** Yes (source: OpenRouter, https://openrouter.ai/anthracite-org/magnum-v4-72b)
- **Hugging Face:** anthracite-org/magnum-v4-72b (source: Hugging Face, https://huggingface.co/anthracite-org/magnum-v4-72b)

## API pricing (USD per 1M tokens)

| Provider | Input | Output | Cached input | Context |
|---|---|---|---|---|
| OpenRouter | $2.50 | $5 | – | 33K |

## FAQ

### What is the context window of Magnum v4 72B?

Magnum v4 72B has a context window of 32,768 tokens (33K) and can generate up to 4,096 tokens in a single response, according to OpenRouter.

### How much does the Magnum v4 72B API cost?

Magnum v4 72B is listed from $2.50 per million input tokens and $5 per million output tokens (OpenRouter). Prices last verified 4 Oct 2026.

### Is Magnum v4 72B open source?

Magnum v4 72B is an open-weight model: its weights are published on Hugging Face as anthracite-org/magnum-v4-72b under the apache-2.0 license. Check the license terms before commercial use.

### When was Magnum v4 72B released?

Anthracite ORG released Magnum v4 72B on 22 Oct 2024, according to OpenRouter.

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Data licensed CC BY 4.0. Cite as: AI Model Directory, "Magnum v4 72B", https://www.aimodel.directory/models/magnum-v4-72b