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Google: Gemini 3.1 Pro Preview Custom Tools vs Qwen: Qwen2.5 VL 72B Instruct

Head-to-head API cost, context, and performance comparison. Synced at 11:22:53 AM.

Executive Summary

When evaluating Google: Gemini 3.1 Pro Preview Custom Tools against Qwen: Qwen2.5 VL 72B Instruct, the pricing structure is a key differentiator. Qwen: Qwen2.5 VL 72B Instruct is approximately 89% more cost-effective per 1 million tokens overall.

However, when looking at raw reasoning capabilities, Google: Gemini 3.1 Pro Preview Custom Tools leads with a statistical ELO score of 1493. For tasks involving complex logic, coding, or instruction-following, developers might prefer Google: Gemini 3.1 Pro Preview Custom Tools, provided their budget allows for the API burn rate.

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Raw Technical comparison

Metric
Google: Gemini 3.1 Pro Preview Custom Tools
Qwen: Qwen2.5 VL 72B Instruct
Performance (ELO)
1493
1490
Input Cost / 1M
$2.00
$0.80
Output Cost / 1M
$12.00
$0.80
Context Window
1,048,576 tokens
32,768 tokens

Verdict

If you are looking for pure performance and capability, Google: Gemini 3.1 Pro Preview Custom Tools is statistically superior. However, if API burn rate is the primary concern, Qwen: Qwen2.5 VL 72B Instruct wins out aggressively in pricing.

People Also Ask

Is Google: Gemini 3.1 Pro Preview Custom Tools cheaper than Qwen: Qwen2.5 VL 72B Instruct?

No. Qwen: Qwen2.5 VL 72B Instruct is the more cost-effective model, operating at a lower price point per 1 million tokens.

Which model has the larger context window?

The Google: Gemini 3.1 Pro Preview Custom Tools model has the advantage in memory, offering a massive 1,048,576 token limit for document ingestion.

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