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The GEO and AI cost brief

AI model pricing, how retrieval layers get built in production, and what changed in generative engine optimisation. Roughly every two weeks, and only when there is something worth sending.

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1. Six OpenAI models retire on December 11, and the suggested replacement costs 6.8× · Issue 001 · 31 October 2026

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The GEO and AI cost brief

Changes in AI model pricing, how retrieval layers get built in production, and what changed in generative engine optimisation. Roughly every two weeks, and only when there is something worth sending.

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