BiWu.AiClaude Opus API Pricing
Anthropic publishes official API prices for 4 Claude Opus models: Claude Opus 5, Claude Opus 4.8, Claude Opus 4.7 and Claude Opus 4.6. All of them cost $5 per 1M input tokens and $25 per 1M output tokens.
Prices checked Oct 10, 2026
Models
4
Lowest output / 1M
$25
Claude Opus 5
Unit
Per 1M tokens
Prices checked
Oct 10, 2026
Claude Opus API prices by model
Official prices per 1 million tokens from Anthropic's pricing page. Open a model for every provider and plan we track.
| Model | Input | Output | Cached input | Context window |
|---|---|---|---|---|
| Claude Opus 5 | $5 | $25 | $0.50 | 1M context · 128K max output |
| Claude Opus 4.8 | $5 | $25 | $0.50 | — |
| Claude Opus 4.7 | $5 | $25 | $0.50 | — |
| Claude Opus 4.6 | $5 | $25 | $0.50 | — |
Claude Opus API pricing FAQ
How much does the Claude Opus API cost?
Anthropic's official API charges $5 per 1M input tokens and $25 per 1M output tokens across the 4 models listed here. Prices checked Oct 10, 2026.
What is the cheapest Claude Opus API model?
All 4 models listed here have the same official price: $5 per 1M input tokens and $25 per 1M output tokens.
Is cached input cheaper on the Claude Opus API?
Yes. 4 of the 4 models listed here have a lower cached-input price. For example, Claude Opus 5 charges $0.50 per 1M cached input tokens instead of $5.
Related pricing
BiWu.Ai lists public API prices from official pricing pages for reference and does not sell API access. Long-context, batch and priority rates can differ, and prices can change without notice. Check Anthropic's pricing page before you build on it.