Which AI Model Is Actually Cheapest? Cost per Successful Task Ranked

The cheapest AI model is not necessarily the one with the lowest token price.

A model that costs less per request can become more expensive when it produces:
• More failed tasks
• Longer outputs
• Repeated tool calls
• Additional retries
• Slower completion
• More human intervention

Decentralised News has introduced the Agent Model Efficiency Index 2027, built around a more meaningful economic metric:
Total production cost per verified successful task.

The research includes an interactive calculator covering model costs, tools, infrastructure, retries, latency and human rescue.

It also explains why GPT, Claude, Gemini and other models should be evaluated by workflow rather than placed into one misleading universal ranking.

Explore the index and calculate the true cost of your AI agent workflow:
https://decentralised.news/agent-model-efficiency-index-2027/

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