Claude 3.5 Sonnet vs GPT-4 Turbo
Pricing, context window, and benchmark comparison · Last updated April 2026
Claude 3.5 Sonnet is cheaper than GPT-4 Turbo at $3.00/1M/1M vs $10.00/1M/1M input tokens — a 3.3x cost difference. Claude 3.5 Sonnet scores higher on quality benchmarks (ELO 1295). Choose Claude 3.5 Sonnet for cost-sensitive workloads; both are strong choices depending on your budget.
Which is cheaper: Claude 3.5 Sonnet or GPT-4 Turbo?
Claude 3.5 Sonnet is the cheaper option at $3.00/1M per 1M input tokens, compared to $10.00/1M for GPT-4 Turbo. That is a 3.3x cost difference on input tokens. Output pricing follows a similar pattern: Claude 3.5 Sonnet charges $15.00/1M/1M vs $30.00/1M/1M for GPT-4 Turbo.
Which has better quality: Claude 3.5 Sonnet or GPT-4 Turbo?
Based on LMSYS Chatbot Arena rankings, Claude 3.5 Sonnet achieves a higher ELO score (1295 vs 1260), suggesting stronger performance on open-ended tasks. Claude 3.5 Sonnet excels at 200k context window — best for long documents. GPT-4 Turbo is known for strong general reasoning.
Which should you choose: Claude 3.5 Sonnet or GPT-4 Turbo?
- → 200K context window — best for long documents
- → Industry-leading coding performance
- → Nuanced instruction following
- → Strong general reasoning
- → Good at following complex multi-step instructions
- → Reliable tool/function calling
Frequently Asked Questions
Which is cheaper: Claude 3.5 Sonnet or GPT-4 Turbo?
Claude 3.5 Sonnet is cheaper at $3.00/1M per 1M input tokens, making it 3.3x more affordable.
Which has better quality: Claude 3.5 Sonnet or GPT-4 Turbo?
Claude 3.5 Sonnet scores higher on the LMSYS Chatbot Arena with an ELO of 1295, suggesting better overall quality for most tasks.
Which has a larger context window: Claude 3.5 Sonnet or GPT-4 Turbo?
Claude 3.5 Sonnet has a larger context window at 200K tokens.
Should I choose Claude 3.5 Sonnet or GPT-4 Turbo?
Choose Claude 3.5 Sonnet if cost is the priority. Choose Claude 3.5 Sonnet if benchmark quality is most important. Consider your specific use case: Claude 3.5 Sonnet is best for coding and document-analysis, while GPT-4 Turbo excels at coding and function-calling.
Is Claude 3.5 Sonnet or GPT-4 Turbo open source?
Claude 3.5 Sonnet is proprietary. GPT-4 Turbo is proprietary.