Model comparison
Claude Opus 4.8 vs Claude Sonnet 4.6
Anthropic
Claude Opus 4.8
Anthropic's heavyweight for hard reasoning and agentic work.
Anthropic
Claude Sonnet 4.6
The pragmatic default - Claude quality without Opus pricing.
Specs
| Metric | Claude Opus 4.8 | Claude Sonnet 4.6 |
|---|---|---|
| Context window | 1M tokens↑ | 1M tokens |
| Input $/1M tokens | $5.00 | $3.00↑ |
| Output $/1M tokens | $25.00 | $15.00↑ |
| Modalities | Text · Image | Text · Image · File |
| Open weights | No | No |
| Released | May 2026 | - |
Key differences
- -Input pricing: Claude Opus 4.8 at $5.00/1M vs Claude Sonnet 4.6 at $3.00/1M.