Claude 3.5 Sonnet vs Claude Sonnet 4.6
Pricing, context window, and benchmark comparison · Last updated April 2026
Claude Sonnet 4.6 is cheaper than Claude 3.5 Sonnet at $3.00/1M/1M vs $3.00/1M/1M input tokens. Claude Sonnet 4.6 scores higher on quality benchmarks (ELO 1310). Choose Claude Sonnet 4.6 for cost-sensitive workloads; both are strong choices depending on your budget.
Which is cheaper: Claude 3.5 Sonnet or Claude Sonnet 4.6?
Claude 3.5 Sonnet and Claude Sonnet 4.6 are identically priced at $3.00/1M per 1M input tokens. Output pricing follows a similar pattern: Claude 3.5 Sonnet charges $15.00/1M/1M vs $15.00/1M/1M for Claude Sonnet 4.6.
Which has better quality: Claude 3.5 Sonnet or Claude Sonnet 4.6?
Based on LMSYS Chatbot Arena rankings, Claude Sonnet 4.6 achieves a higher ELO score (1310 vs 1295), suggesting stronger performance on open-ended tasks. Claude 3.5 Sonnet excels at 200k context window — best for long documents. Claude Sonnet 4.6 is known for latest claude model with improved agentic capabilities.
Which should you choose: Claude 3.5 Sonnet or Claude Sonnet 4.6?
- → 200K context window — best for long documents
- → Industry-leading coding performance
- → Nuanced instruction following
- → Latest Claude model with improved agentic capabilities
- → Better at multi-step autonomous workflows
- → 200K context window
Frequently Asked Questions
Which is cheaper: Claude 3.5 Sonnet or Claude Sonnet 4.6?
Claude 3.5 Sonnet and Claude Sonnet 4.6 have the same input price of $3.00/1M per 1M tokens.
Which has better quality: Claude 3.5 Sonnet or Claude Sonnet 4.6?
Claude Sonnet 4.6 scores higher on the LMSYS Chatbot Arena with an ELO of 1310, suggesting better overall quality for most tasks.
Which has a larger context window: Claude 3.5 Sonnet or Claude Sonnet 4.6?
Both Claude 3.5 Sonnet and Claude Sonnet 4.6 have the same context window.
Should I choose Claude 3.5 Sonnet or Claude Sonnet 4.6?
Choose Claude Sonnet 4.6 if cost is the priority. Choose Claude Sonnet 4.6 if benchmark quality is most important. Consider your specific use case: Claude 3.5 Sonnet is best for coding and document-analysis, while Claude Sonnet 4.6 excels at coding and function-calling.
Is Claude 3.5 Sonnet or Claude Sonnet 4.6 open source?
Claude 3.5 Sonnet is proprietary. Claude Sonnet 4.6 is proprietary.