| Feature | Claude Opus | Claude Sonnet |
|---|---|---|
| Free Plan | ✗ No | ✓ Yes |
| Pricing | $20/mo | Free / $20/mo |
| Rating | ★★★★★ 4.9 | ★★★★★ 4.7 |
| Key Feature 1 | Top-tier reasoning | Balanced intelligence |
| Key Feature 2 | 200K context window | Coding excellence |
| Key Feature 3 | Nuanced writing | 200K context |
Reach buyers comparing Claude Opus and Claude Sonnet. High-intent traffic, direct conversions.
Claude Opus is Anthropic's most intelligent model — the version of Claude built for complex reasoning, nuanced analysis, and tasks that require deep thinking over speed. While Claude Sonnet handles ev
Claude Sonnet is Anthropic's balanced model — combining strong intelligence with fast response times, making it the workhorse for everyday AI tasks. It's the default model in Claude.ai's free tier and
• Most capable reasoning of any Claude model
• 200K context handles full documents
• Best writing quality available — especially for top-tier reasoning workflows where Claude Opus consistently outperforms manual approaches
• Ideal for high-stakes professional work
• Requires Claude Pro at $20/mo — worth evaluating before committing if this is central to your use case
• Slower than Sonnet for simple tasks — can be a bottleneck during high-traffic periods or when processing large batches
• Free tier available — especially for balanced intelligence workflows where Claude Sonnet consistently outperforms manual approaches
• Generates results in seconds — balanced intelligence runs noticeably faster than manual alternatives
• Excellent coding capabilities — especially for balanced intelligence workflows where Claude Sonnet consistently outperforms manual approaches
• 200K context window — especially for balanced intelligence workflows where Claude Sonnet consistently outperforms manual approaches
• Less capable than Opus for hardest problems
• Occasional reasoning gaps on complex tasks