
Claude Sonnet API Guide: Pricing & When to Use It Over Opus
A practical Claude Sonnet 4.6 API guide — near-Opus quality at $3/$15 per million tokens. Pricing, strengths, and when Sonnet is the smarter, cheaper choice than Opus.
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Tutorials, product updates, and insights

A practical Claude Sonnet 4.6 API guide — near-Opus quality at $3/$15 per million tokens. Pricing, strengths, and when Sonnet is the smarter, cheaper choice than Opus.

A practical Claude Haiku 4.5 API guide — Anthropic's fastest, cheapest model at $1/$5 per million tokens. When Haiku is enough, and when to escalate to Sonnet or Opus.