Claude Opus 5
FrontierClosedAnthropic
Anthropic's frontier tier, and ahead of Fable 5 on both recorded benchmarks at half the price.
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Best for: Agentic coding · Long-context analysis · Multi-step engineering work
Watch out: Output tokens cost five times input — long generations dominate the bill.
- Released
- July 24, 2026
- Input / 1M
- $5
- Output / 1M
- $25
- Context
- 1M
- Max output
- 128K