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10 pages in this section.
Learn how Claude API token pricing works. Understand the four token categories—input, output, cache write, and cache read—and how they impact your budget.
Learn to count tokens and estimate API request costs using the Anthropic SDK. Explore 9 examples for basic and intermediate token economics.
Compare Sonnet 5, Opus 4.8, and Fable 5 pricing per million tokens and analyze real-world task costs based on token shape.
Build a Python cost calculator using messages.count_tokens to estimate API request costs before execution, enabling budget enforcement.
Build a router that classifies task complexity with Haiku and escalates hard tasks to Opus, reducing costs without sacrificing quality.
Optimize Claude API spend by selecting appropriate model tiers, caching reused data, batching requests, and measuring usage for cost-effective AI.
A single-page roundup of every highlight bullet from the 9 pages in the Token Economics section, grouped by source page so you can scan all 52 takeaways without opening each article individually.