Posts about Costs

September 13, 2026

19 min read

WhatsApp API, October 1: What Changes in Your Code When Meta Starts Billing Service Messages

WhatsApp Costs Pricing Webhooks TypeScript Backend

Typographic cover: WhatsApp Cloud API and a two-line diff where pricing.type changes from free_customer_service to regular

September 5, 2026

13 min read

GPT-6 Astra for Developers: The Pricing Cliff Nobody Put in the Headline

AI OpenAI API Costs Agents Migration

A wide token bar filling toward a sharp step in the road, where the price rail jumps to a second level and the bar continues at double height

August 16, 2026

21 min read

AI model retirements: gpt-4 and gpt-3.5 are already off, and GPT-4o shuts down on 14 January 2027

AI OpenAI Claude Migration Costs Maintenance

Dark control panel with eight switches: five off with an expiry tag hanging from each, and three still on, glowing teal

16 min read

How Much AI Coding Agents Really Cost: I Measured 7.97 Billion Tokens in 35 Days

AI Agents Tokens Claude Costs

A code terminal wrapped in a loop of arrows feeding context back into the model, with coins falling toward a cost gauge

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