AI model and infrastructure insights

Insights, page 35 of 95

Pricing and plans

Claude Sonnet 4 Pricing: $3/$15 Rates and API Retirement

Claude Sonnet 4 was retired from Anthropic’s direct API on June 15, 2026. Anthropic’s listed $3 per million input and $15 per million output token rates are historical references, not a price for a model you can newly deploy there.

Model APIs

GPT-5 Search API: How to Use `gpt-5-search-api`

OpenAI’s current API guide lists `gpt-5-search-api` for web search through Chat Completions, not as the documented path for new Responses API integrations. See a minimal Python request and the key integration distinction.