What is Magnum v4 72B's context window?

Magnum v4 72B accepts up to 32,768 tokens in a single request, and can return up to 4,096 output tokens.

Is there a cheaper OpenRouter model than Magnum v4 72B?

Yes. OpenAI: GPT-3.5 Turbo is $0.500 per 1M input tokens versus $2.50 for Magnum v4 72B, with a 16,385 token context window.

Where does this Magnum v4 72B price come from?

From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Magnum v4 72B pricing

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. Magnum v4 72B from OpenRouter costs $2.50 per 1M input tokens and $5.00 per 1M output tokens. Context window 32,768 tokens.

API id anthracite-org/magnum-v4-72b · OpenRouter · source · updated 2026-09-25 · general-purpose

$2.50

Input / 1M tokens

$5.00

Output / 1M tokens

—

Cached input / 1M

33K

Context window

Magnum v4 72B specifications

Provider: OpenRouter
API id: anthracite-org/magnum-v4-72b
Model type: general-purpose
Context window: 33K tokens
Max output: 4K tokens
Currency: USD
Price source: Provider API
Last checked: 2026-09-25

What Magnum v4 72B costs in practice

Estimated cost at common usage volumes
Workload	Input tokens	Output tokens	Estimated cost
Short chat turn	1,000	500	$0.0050
Document summary	50,000	2,000	$0.14
1M tokens in, 200K out	1,000,000	200,000	$3.50

Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.

Magnum v4 72B price history

Recorded	Input /1M	Output /1M
2026-09-01	$2.50	$5.00
2026-08-27	$3.00	$5.00

Common questions

How much does Magnum v4 72B cost per 1M tokens?: Magnum v4 72B costs $2.50 per 1M input tokens and $5.00 per 1M output tokens on the standard tier.
What is Magnum v4 72B's context window?: Magnum v4 72B accepts up to 32,768 tokens in a single request, and can return up to 4,096 output tokens.
Is there a cheaper OpenRouter model than Magnum v4 72B?: Yes. OpenAI: GPT-3.5 Turbo is $0.500 per 1M input tokens versus $2.50 for Magnum v4 72B, with a 16,385 token context window.
Where does this Magnum v4 72B price come from?: From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Head-to-head comparisons

Compare Magnum v4 72B with another model →

Other OpenRouter models

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