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