Magnum v4 72B✓ Catalog verified
This is a series of models designed to replicate the prose quality of the Claude 3 models, specifically Sonnet(https://openrouter.ai/anthropic/claude-3.5-sonnet) and Opus(https://openrouter.ai/anthropic/claude-3-opus). The model is fine-tuned on top of Qwen2.5 72B.
Overview
This is a series of models designed to replicate the prose quality of the Claude 3 models, specifically Sonnet(https://openrouter.ai/anthropic/claude-3.5-sonnet) and Opus(https://openrouter.ai/anthropic/claude-3-opus). The model is fine-tuned on top of Qwen2.5 72B.
Access: available through the official Anthracite Org API. Context window: 16K.
Specifications
| API identifier | anthracite-org/magnum-v4-72b |
| Provider | Anthracite Org |
| Model type | Text LLM |
| Context window | 16K catalog |
| Input modalities | text |
| Output modalities | text |
| Released | Oct 22, 2024 |
| Tokenizer | Qwen |
| Instruction format | chatml |
| Moderated | No |
| Architecture modality | text->text |
Pricing
Live pricing components for anthracite-org/magnum-v4-72b as published in the catalog.
| Pricing component | Raw unit price | Normalized | Unit |
|---|---|---|---|
| Prompt tokens | $0.000003 | $3.00 / 1M | Per input token |
| Completion tokens | $0.000005 | $5.00 / 1M | Per output token |
| Request fee | N/A | N/A | Per request |
| Image fee | N/A | N/A | Per image unit |
| Web search fee | N/A | N/A | Per search request |
Cost calculator
Estimate monthly spend from your own token volumes.
Estimated Total Cost
$2.5Calculated from current list pricing in the ModelsAtlas catalog.Capabilities
| Capability | Status | What it means |
|---|---|---|
| Visual Understanding | Not advertised | Image and document analysis support |
| Audio Processing | Not advertised | Speech and voice aligned flows |
| Tool Calling | Not advertised | Supports tools / function calling |
| Self-Hosting | Not advertised | Deploy outside managed APIs |
Capability signals
Directional signals derived from model metadata and capability tags — not official benchmark submissions.
Quick start
Call Magnum v4 72B through an OpenAI-compatible client.
from openai import OpenAI
client = OpenAI(
base_url="https://openrouter.ai/api/v1",
api_key="YOUR_API_KEY"
)
response = client.chat.completions.create(
model="anthracite-org/magnum-v4-72b",
messages=[{"role": "user", "content": "Explain quantum physics."}]
)
print(response.choices[0].message.content)Alternatives
Closest models by context window from a different provider.
| Model | Provider | Context | Input /1M | Actions |
|---|---|---|---|---|
| meta-llama/Llama-3.1-8B-Instruct | Meta | 16K | $0.02 | View → |
| Microsoft: Phi 4 | Microsoft | 16K | $0.07 | View → |
Sources & attribution
Pricing and metadata are maintained in the ModelsAtlas catalog.
Frequently asked questions
How much does Magnum v4 72B cost?
$3.00 per 1M input tokens and $5.00 per 1M output tokens on the official Anthracite Org API.
What is the context window of Magnum v4 72B?
Magnum v4 72B supports up to 16K tokens of context.
Does Magnum v4 72B support tool / function calling?
Magnum v4 72B does not advertise first-class tool/function calling. Check vendor docs for the latest capabilities.
How do I access Magnum v4 72B?
Use the official Anthracite Org API with the model id `anthracite-org/magnum-v4-72b`. See the Quick start section above for code examples.