#api の記事

claude-opus-4-1 Deprecation | Migration Guide and temperature 400 Error Fix

How Much Does Claude Sonnet Cost | API and Pro/Max Monthly Plans Explained

Explains Claude Sonnet 4.6 pricing for both API and Pro/Max monthly subscriptions. API rates are $3 input / $15 output per million tokens with no extra charge beyond 200K context. Batch API offers 50% off, prompt caching cache reads drop to 10%, and both discounts can be stacked.