---
title: "Magnum v4 72B API pricing"
canonical: https://uplinkswitch.ai/models/magnum-v4-72b
generated: 2026-10-20T19:40:03.164Z
source: https://api.uplinkswitch.com/v1/catalog
base_url: https://api.uplinkswitch.com/v1
---

# Magnum v4 72B API pricing

Magnum v4 72B API at $6.018/M input and $8.976/M output tokens. Same SDK, one key, one URL.

## Price per million tokens (USD)

| Tokens | Anthracite list price | UplinkSwitch | Under list |
| --- | --- | --- | --- |
| Input | — | $6.018 | — |
| Cached input | — | billed at the input rate | — |
| Output | — | $8.976 | — |

## Model

- Model id: `magnum-v4-72b`
- Formats: OpenAI SDK
- Base URL: https://api.uplinkswitch.com/v1
- Context window: 16,384 tokens
- Input: text
- Daily real-model check: Same fingerprint since Oct 20 (https://uplinkswitch.ai/proof#magnum-v4-72b)

## Request

### Python · OpenAI SDK

```python
from openai import OpenAI

client = OpenAI(
    base_url="https://api.uplinkswitch.com/v1",
    api_key="sk-uplink-live-...",
)

completion = client.chat.completions.create(
    model="magnum-v4-72b",
    messages=[{"role": "user", "content": "Summarize this in one line."}],
)
print(completion.choices[0].message.content)
```

### TypeScript · OpenAI SDK

```typescript
import OpenAI from 'openai';

const client = new OpenAI({
  baseURL: 'https://api.uplinkswitch.com/v1',
  apiKey: 'sk-uplink-live-...',
});

const completion = await client.chat.completions.create({
  model: 'magnum-v4-72b',
  messages: [{ role: 'user', content: 'Summarize this in one line.' }],
});
console.log(completion.choices[0].message.content);
```

### curl

```bash
curl https://api.uplinkswitch.com/v1/chat/completions \
  -H "authorization: Bearer sk-uplink-live-..." \
  -H "content-type: application/json" \
  -d '{"model":"magnum-v4-72b","messages":[{"role":"user","content":"Hello"}]}'
```

## Questions

### What is Magnum v4 72B?

Magnum v4 72B is a model from Anthracite, with a 16,384-token context window, taking text input. Through UplinkSwitch it answers the OpenAI SDK on one key as magnum-v4-72b.

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

$6.018 per million input tokens and $8.976 per million output tokens.

### Is Magnum v4 72B free?

It is pay as you go: prepaid credit from $10, with no subscription or monthly fee, billed per token. A 1,000-token prompt with a 500-token reply costs about $0.0105.

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

Magnum v4 72B has a 16,384-token context window. It takes text input.

### What is the Magnum v4 72B model id?

magnum-v4-72b. Send it as the model through the OpenAI SDK with base URL https://api.uplinkswitch.com/v1.

### How do I get a Magnum v4 72B API key?

Create one in the console at uplinkswitch.ai/console: prepaid credit from $10, no subscription, and the key is live at once. The same key calls Magnum v4 72B and every other model in the catalog; send it as the bearer token with base URL https://api.uplinkswitch.com/v1.

### Is it the real Magnum v4 72B?

Every day each model gets the same test prompt, and a model always counts that prompt the same way; a swapped one would not. Magnum v4 72B's latest result: Same fingerprint since Oct 20.

### Is there a Magnum v4 72B API?

Yes: magnum-v4-72b on the OpenAI format at https://api.uplinkswitch.com/v1, $6.018 input and $8.976 output per million tokens. No weights to download and no GPU of your own; the key also runs every other model in the catalog.

### What is Magnum v4 72B based on?

Qwen’s Qwen2.5 72B Instruct. Anthracite fine-tuned it to write like Claude 3 Sonnet and Opus, per its card.

### What license does Magnum v4 72B have?

The card lists Apache-2.0.

### What does Magnum v4 72B cost per 100 messages?

$1.6524 for 100 chat turns of 2,000 input and 500 output tokens each, at $6.018 input and $8.976 output per million tokens, from prepaid credit with no subscription.

### What is Magnum v4 72B good at?

Prose. The Magnum series is trained to replicate the writing of Claude 3 Sonnet and Opus, so roleplay and story writing are what it is for; its card ships SillyTavern templates.

### Magnum v4 72B or Magnum Diamond 24B?

v4 72B is the larger Qwen2.5 model; Diamond is the 24B Mistral Small tune with the same goal. Magnum v4 72B is $6.018 / $8.976 per million tokens in / out, $16.52 for 1,000 chat turns; Magnum Diamond 24B is $1.479 / $1.479 per million tokens in / out, $3.70 for 1,000 chat turns. Both run on the same key, so send the same prompt to each.

## Related

- Uncensored LLM API: https://uplinkswitch.ai/uncensored
- SillyTavern setup: https://uplinkswitch.ai/guides/sillytavern
- Janitor AI setup: https://uplinkswitch.ai/guides/janitor-ai
- Chub AI setup: https://uplinkswitch.ai/guides/chub-ai
- SDKs setup: https://uplinkswitch.ai/guides/sdks
- Every model and price: https://uplinkswitch.ai/llms-full.txt
- Machine catalog: https://uplinkswitch.ai/ai-catalog.json