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Prices from Azure Retail Prices API · UK South · GBP · Not affiliated with Microsoft

Azure OpenAI Cost Calculator

GBP pricing · GPT-4o · Standard PAYG vs PTU break-even · AI Foundry

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Deployment type

When does PTU save money?

Provisioned Throughput Units give you reserved capacity at a fixed hourly rate. They only save money if you're sustaining load for approximately 7+ days per month. Below that threshold, Standard PAYG is cheaper — you only pay for tokens you actually use.

Standard PAYG configuration

1M tokens ≈ 750,000 words ≈ a large novel

Output tokens cost 2–4× more than input tokens

Standard PAYG monthly estimate

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UK South · GBP estimate

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