TokenAtlas
AI Economics

The numbers behind every AI product.

Plain-English guides on tokens, inference, embeddings, RAG, and AI unit economics — for the people actually shipping the things.

Guides & resources

How much does GPT cost?

Break down per-token pricing across the OpenAI lineup.

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Understanding token pricing

What a token actually is, and why output tokens cost more.

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AI startup cost optimization

Pragmatic levers to cut your inference bill by 40%+.

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Claude vs GPT pricing

When Anthropic wins on reasoning, and when OpenAI wins on price.

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Best cheap LLMs in 2026

The new wave of fast, affordable open and hosted models.

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RAG architecture costs

Vector DBs, embeddings, retrieval — the real bill of a RAG app.

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How AI startups calculate margins

Unit economics for AI SaaS, explained with real numbers.

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AI inference explained

What happens between your prompt and the model's response.

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