EvoLink.AI Blog

Technical insights, tutorials, and updates from the EvoLink team. Learn how to optimize your AI costs and build better applications.

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Articles tagged #prompt caching

Claude Sonnet 5 tokenizer change and production budget control illustration

Cost Optimization

Claude Sonnet 5 Cost Impact: How to Recalculate Budgets After the Tokenizer Change

A practical guide for production teams evaluating Claude Sonnet 5 cost by completed workflow, not just token price.

Conceptual illustration of code panels connected through an API gateway to a glowing AI core

guide

How to Use the GPT-6 Astra API: First Call, Effort Levels & Migration from GPT-5.6

Call gpt-6-astra through EvoLink in Python, Node.js, or cURL. Learn which features need the Responses API, how to pick a reasoning effort, what to change when migrating from GPT-5.6, and how the 272K long-context band and prompt caching change your bill.

Claude Fable 5 API Pricing: Token Costs, Usage Credits, and Cost Examples

Estimate Claude Fable 5 API costs and compare Anthropic list pricing with EvoLink's discounted input, output, and cache rates.