Open Source AI Models Outperform Closed Models in Cost and Speed Benchmark

A new visual benchmark developed by nutlope and shared by Together AI on X highlights significant cost and speed differences between AI models. The benchmark tested closed-source models like Opus 4.8 and GPT-5.5 against open-source alternatives, finding that open-source models were considerably faster and cheaper. Specifically, Opus 4.8 was 15 times more expensive than MiniMax M3, and GPT-5.5 was 10 times more expensive, with comparable game quality produced by both types of models. AI

IMPACT Open-source models demonstrate cost and speed advantages, potentially accelerating their adoption over proprietary alternatives.

RANK_REASON The cluster describes a new benchmark comparing AI models, which falls under research. [lever_c_demoted from research: ic=1 ai=1.0]

Read on X — Together (inference / OSS) →

• GPT-5.5
• MiniMax M3
• nutlope
• Opus 4.8
• Together AI
• X

• model release
• infra

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