UltraGPT
Magnum v4 72B
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).
Intelligence overview
32.8K tok
Context window
4.1K tok
Max output
What Magnum v4 72B can do.
Development
Structured output
Returns responses constrained to a JSON schema, ready to parse without cleanup.
Streaming
Streams tokens as they're generated instead of waiting on the full response.
Pay for what you use.
Every model in UltraGPT runs behind one flat subscription — this is the underlying per-token cost the catalog tracks.
$2.5 / 1M tok
$5 / 1M tok
Built for serious work.
Build
Generate and refactor code, with the ability to return structured, parseable output.
Ask Magnum v4 72B anything.
A preview of the real UltraGPT composer — the model you see here is the model you get.
Continues in the UltraGPT app — one login, every model.
How Magnum v4 72B stacks up.
The closest models in the catalog by provider, capability and score — real entries, pulled from the same directory.
Technical details.
Specification
- Context window
- 32.8K tokens
- Max output
- 4.1K tokens
- Input modalities
- Text
- Output modalities
- Text
- Knowledge cutoff
- Jun 30, 2024
- Release date
- Oct 22, 2024
- Streaming
- Supported
- Tool calling
- Not supported
- JSON mode
- Supported
More from Anthracite Org, and everything else.
This model is one entry in the full UltraGPT catalog — browse the rest, compare pricing and context windows, or filter by capability.