Anthropic API billing scales per 1 million tokens. Standard pricing for Claude Opus 4.8 is $5.00 per 1M input tokens and $25.00 per 1M output tokens. Claude Sonnet 4.6 costs $3.00 per 1M input and $15.00 per 1M output, while Claude Haiku 4.5 costs $1.00 per 1M input and $5.00 per 1M output.
Comparison of API prompt costs for 100,000 input tokens and 20,000 output tokens across models.
| Model | Input Cost / 1M | Output Cost / 1M | Single Run Cost |
|---|---|---|---|
| Claude Opus 4.8 | $5.00 | $25.00 | $1.00 |
| Claude Fable 5 | $10.00 | $50.00 | $2.00 |
| Claude Opus 4.7 | $5.00 | $25.00 | $1.00 |
| Claude Opus 4.6 | $5.00 | $25.00 | $1.00 |
| Claude Opus 4.5 | $5.00 | $25.00 | $1.00 |
| Claude Sonnet 4.6 | $3.00 | $15.00 | $0.60 |
| Claude Sonnet 4.5 | $3.00 | $15.00 | $0.60 |
| Claude Haiku 4.5 | $1.00 | $5.00 | $0.20 |