Claude Opus 4.7 vs Claude Sonnet 4.6
Pricing, context window, and benchmark comparison · Last updated April 2026
Claude Sonnet 4.6 is cheaper than Claude Opus 4.7 at $3.00/1M/1M vs $5.00/1M/1M input tokens — a 1.7x cost difference. Claude Opus 4.7 scores higher on quality benchmarks (ELO 1415). Choose Claude Sonnet 4.6 for cost-sensitive workloads; choose Claude Opus 4.7 for maximum quality.
Which is cheaper: Claude Opus 4.7 or Claude Sonnet 4.6?
Claude Sonnet 4.6 is the cheaper option at $3.00/1M per 1M input tokens, compared to $5.00/1M for Claude Opus 4.7. That is a 1.7x cost difference on input tokens. Output pricing follows a similar pattern: Claude Opus 4.7 charges $25.00/1M/1M vs $15.00/1M/1M for Claude Sonnet 4.6.
Which has better quality: Claude Opus 4.7 or Claude Sonnet 4.6?
Based on LMSYS Chatbot Arena rankings, Claude Opus 4.7 achieves a higher ELO score (1415 vs 1390), suggesting stronger performance on open-ended tasks. Claude Opus 4.7 excels at step-change improvement in agentic coding over opus 4.6. Claude Sonnet 4.6 is known for best combination of speed and intelligence in the claude family.
Which should you choose: Claude Opus 4.7 or Claude Sonnet 4.6?
- → Step-change improvement in agentic coding over Opus 4.6
- → 1M token context window at standard pricing
- → 128K max output tokens
- → Best combination of speed and intelligence in the Claude family
- → 1M token context window at standard pricing
- → Extended thinking and adaptive thinking supported
Frequently Asked Questions
Which is cheaper: Claude Opus 4.7 or Claude Sonnet 4.6?
Claude Sonnet 4.6 is cheaper at $3.00/1M per 1M input tokens, making it 1.7x more affordable.
Which has better quality: Claude Opus 4.7 or Claude Sonnet 4.6?
Claude Opus 4.7 scores higher on the LMSYS Chatbot Arena with an ELO of 1415, suggesting better overall quality for most tasks.
Which has a larger context window: Claude Opus 4.7 or Claude Sonnet 4.6?
Both Claude Opus 4.7 and Claude Sonnet 4.6 have the same context window.
Should I choose Claude Opus 4.7 or Claude Sonnet 4.6?
Choose Claude Sonnet 4.6 if cost is the priority. Choose Claude Opus 4.7 if benchmark quality is most important. Consider your specific use case: Claude Opus 4.7 is best for coding and reasoning, while Claude Sonnet 4.6 excels at coding and function-calling.
Is Claude Opus 4.7 or Claude Sonnet 4.6 open source?
Claude Opus 4.7 is proprietary. Claude Sonnet 4.6 is proprietary.