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Magnum v4 72B vs OpenAI: GPT-5.1-Codex-Mini

Head-to-head API cost, context, and performance comparison. Synced at 11:24:06 AM.

Executive Summary

When evaluating Magnum v4 72B against OpenAI: GPT-5.1-Codex-Mini, the pricing structure is a key differentiator. OpenAI: GPT-5.1-Codex-Mini is approximately 72% more cost-effective per 1 million tokens overall.

However, when looking at raw reasoning capabilities, Magnum v4 72B leads with a statistical ELO score of 1502. For tasks involving complex logic, coding, or instruction-following, developers might prefer Magnum v4 72B, provided their budget allows for the API burn rate.

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Raw Technical comparison

Metric
Magnum v4 72B
OpenAI: GPT-5.1-Codex-Mini
Performance (ELO)
1502
1489
Input Cost / 1M
$3.00
$0.25
Output Cost / 1M
$5.00
$2.00
Context Window
16,384 tokens
400,000 tokens

Verdict

If you are looking for pure performance and capability, Magnum v4 72B is statistically superior. However, if API burn rate is the primary concern, OpenAI: GPT-5.1-Codex-Mini wins out aggressively in pricing.

People Also Ask

Is Magnum v4 72B cheaper than OpenAI: GPT-5.1-Codex-Mini?

No. OpenAI: GPT-5.1-Codex-Mini is the more cost-effective model, operating at a lower price point per 1 million tokens.

Which model has the larger context window?

The OpenAI: GPT-5.1-Codex-Mini model has the advantage in memory, offering a massive 400,000 token limit for document ingestion.

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