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Magnum v4 72B
Anthracite Org · Released Oct 2024
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
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 11 Jun 2026 | $3.00 | $5.00 | — | Imported from OpenRouter | openrouter.ai |