I Was Spending €50/Month on AI APIs — Now It's €5. Here's the Real Math.

I Was Spending €50/Month on AI APIs — Now It's €5. Here's the Real Math. Spoiler: the most...

domenica 14 giugno 2026 New tab

TL;DRAI

Developer cut AI costs 89.5% (€47.80→€5/mo) by routing tasks to DeepSeek Flash (€0.10/M) instead of GPT-4o, keeping premium for reasoning. Signals task-based routing as cost baseline: commodity models match premiums on 95% of work, reshaping enterprise budgets.

962 words~4 min read

I Was Spending €50/Month on AI APIs — Now It's €5. Here's the Real Math.

Spoiler: the most expensive model isn't always the best for your task.

Three months ago I looked at my AI API bill and winced. €47.80 for a single month. I'm a solo developer running a side project — nothing at scale, just a few hundred requests a day. How was this happening?

The answer, once I dug in: I was routing everything through the wrong models by default.

The Expensive Default

I Was Spending €50/Month on AI APIs — Now It's €5. Here's the Real Math.

I Was Spending €50/Month on AI APIs — Now It's €5. Here's the Real Math.

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Related reading

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How I Cut My LLM API Costs by 70% Without Touching My Code

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How I Slashed My AI API Bill by 95% — A Practical Guide for 2026