prices synced 2026-07-28
A

Magnum v4 72B

Anthracite Org · Released Oct 2024

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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](https://openrouter.ai/qwen/qwen-2.5-72b-instruct).

Strengths
Produces clear, well-structured prose with strong reasoning capabilities across a broad range of tasks, matching the characteristics of Claude 3 Sonnet and Opus.
Best for
Writing, analysis, and reasoning-heavy tasks where prose quality and thoughtful responses are priorities.
Limitations
16K token context window is relatively constrained for working with lengthy documents or extended conversations; performance on specialized domains may vary compared to the original Claude models.

Input / 1M

$3.00

Output / 1M

$5.00

Cached input / 1M

Context window

16K

Price history

Price per 1M tokens over timeOutput $5.00; Input $3.00 as of Jun 2026.$0$1.00$2.00$3.00$4.00$5.00Output on 11 Jun 2026: $5.00Out $5.00Input on 11 Jun 2026: $3.00In $3.00Jun 2026

Snapshots

Effective Input Output Cached in Note Source
11 Jun 2026 $3.00 $5.00 Imported from OpenRouter openrouter.ai
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