Claude Opus 5
Anthropic · Multimodal · Released Jul 2026
Anthropic's flagship reasoning model designed for complex multi-step problems, software development, and extended agentic work.
- Strengths
- Handles sophisticated reasoning chains, autonomous task execution, and lengthy code projects with a 1M token context window.
- Best for
- Complex reasoning tasks, multi-step problem solving, extended agentic workflows, and large-scale software development.
- Limitations
- Slower and more expensive than Sonnet-tier models; has been superseded by Claude Fable 5 for the most demanding reasoning and agentic work.
Input / 1M
$5.00
Output / 1M
$25.00
Cached input / 1M
$0.5
Context window
1M
Also billed
- Cache write
- $6.25 / 1M
Price history
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 24 Jul 2026 | $5.00 | $25.00 | $0.5 | Imported from OpenRouter | openrouter.ai |