Claude 4 Opus vs Claude 4 Sonnet
Side-by-side comparison of specs, pricing, and capabilities
| Spec | 🧠 Claude 4 Opus | 🧠 Claude 4 Sonnet |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Category | 🧠 Reasoning | 🧠 Reasoning |
| Parameters | Undisclosed | Undisclosed |
| Context Window | 200K tokens | 200K tokens |
| License | 🔒 proprietary | 🔒 proprietary |
| Input Price | $15 | $3 |
| Output Price | $75 | $15 |
| API Available | ✅ | ✅ |
| Released | Sep 1, 2025 | Jun 1, 2025 |
| Trending Score | 🔥 98 | 🔥 94 |
Claude 4 Opus Strengths
- ✓Best-in-class reasoning
- ✓Extended thinking for hard problems
- ✓Strong code generation
- ✓Nuanced long-form writing
Claude 4 Sonnet Strengths
- ✓Great speed-to-intelligence ratio
- ✓Strong coding
- ✓Good for production workloads
- ✓Extended thinking available
About Claude 4 Opus
Anthropic's most powerful reasoning model with extended thinking. Excels at complex analysis, multi-step math, advanced coding, and nuanced writing.
View full details →About Claude 4 Sonnet
Balanced intelligence and speed. Strong reasoning with faster response times and lower cost than Opus.
View full details →❓ Frequently Asked Questions
Which is better, Claude 4 Opus or Claude 4 Sonnet?
It depends on your use case. Claude 4 Opus (Anthropic) has a trending score of 98, while Claude 4 Sonnet (Anthropic) scores 94. Claude 4 Opus costs $15 per 1M input tokens. Check the comparison table above for detailed specs.
Is Claude 4 Opus cheaper than Claude 4 Sonnet?
Claude 4 Opus costs $15 input / $75 output per 1M tokens, while Claude 4 Sonnet costs $3 input / $15 output.
Can I use both Claude 4 Opus and Claude 4 Sonnet?
Yes! Many developers use multiple models for different tasks. You might use one for complex reasoning and another for high-volume, cost-sensitive workloads.