Claude Sonnet 4.6 vs GPT-4o
Pricing, context window, and benchmark comparison · Last updated April 2026
GPT-4o is cheaper than Claude Sonnet 4.6 at $2.50/1M/1M vs $3.00/1M/1M input tokens — a 1.2x cost difference. Claude Sonnet 4.6 scores higher on quality benchmarks (ELO 1310). Choose GPT-4o for cost-sensitive workloads; choose Claude Sonnet 4.6 for maximum quality.
Which is cheaper: Claude Sonnet 4.6 or GPT-4o?
GPT-4o is the cheaper option at $2.50/1M per 1M input tokens, compared to $3.00/1M for Claude Sonnet 4.6. That is a 1.2x cost difference on input tokens. Output pricing follows a similar pattern: Claude Sonnet 4.6 charges $15.00/1M/1M vs $10.00/1M/1M for GPT-4o.
Which has better quality: Claude Sonnet 4.6 or GPT-4o?
Based on LMSYS Chatbot Arena rankings, Claude Sonnet 4.6 achieves a higher ELO score (1310 vs 1286), suggesting stronger performance on open-ended tasks. Claude Sonnet 4.6 excels at latest claude model with improved agentic capabilities. GPT-4o is known for multimodal: handles text, images, and audio natively.
Which should you choose: Claude Sonnet 4.6 or GPT-4o?
- → Latest Claude model with improved agentic capabilities
- → Better at multi-step autonomous workflows
- → 200K context window
- → Multimodal: handles text, images, and audio natively
- → Strong reasoning and instruction following
- → Excellent coding capabilities
Frequently Asked Questions
Which is cheaper: Claude Sonnet 4.6 or GPT-4o?
GPT-4o is cheaper at $2.50/1M per 1M input tokens, making it 1.2x more affordable.
Which has better quality: Claude Sonnet 4.6 or GPT-4o?
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 Sonnet 4.6 or GPT-4o?
Claude Sonnet 4.6 has a larger context window at 200K tokens.
Should I choose Claude Sonnet 4.6 or GPT-4o?
Choose GPT-4o if cost is the priority. Choose Claude Sonnet 4.6 if benchmark quality is most important. Consider your specific use case: Claude Sonnet 4.6 is best for coding and function-calling, while GPT-4o excels at coding and image-understanding.
Is Claude Sonnet 4.6 or GPT-4o open source?
Claude Sonnet 4.6 is proprietary. GPT-4o is proprietary.