Claude 4.1 Opus vs Claude 4 Sonnet
Compare Claude 4.1 Opus and Claude 4 Sonnet. Find out which model is better for your specific use case and requirements.
Model Comparison
| Feature | Claude 4.1 Opus | Claude 4 Sonnet |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Model Type | text | text |
| Context Window | 1,000,000 tokens | 1,000,000 tokens |
| Input Cost | $15.00/ 1M tokens | $3.00/ 1M tokens |
| Output Cost | $75.00/ 1M tokens | $15.00/ 1M tokens |
Strengths & Best Use Cases
Claude 4.1 Opus
Anthropic1. Advanced Coding Performance
-
Achieves 74.5% on SWE-bench Verified, improving the Claude family's state-of-the-art coding abilities.
-
Stronger at:
- Multi-file code refactoring
- Large codebase debugging
- Pinpointing exact corrections without unnecessary edits
-
Outperforms Opus 4 and shows gains comparable to jumps seen in past major releases.
2. Improved Agentic & Research Capabilities
- Better at maintaining detail accuracy in long research tasks.
- Enhanced agentic search and step-by-step problem solving.
- Performs reliably across complex multi-turn reasoning tasks.
3. Validated by Real-World Users
- GitHub: Better multi-file refactoring and code adjustments.
- Rakuten Group: High precision debugging with minimal collateral changes.
- Windsurf: One standard deviation improvement on their junior dev benchmark - similar magnitude to Sonnet 3.7 → Sonnet 4.
4. Hybrid-Reasoning Benchmark Improvements
- Improvements across TAU-bench, GPQA Diamond, MMMLU, MMMU, AIME (with extended thinking).
- Stronger robustness in long-context reasoning tasks.
Claude 4 Sonnet
Anthropic- Hybrid reasoning: supports both fast (“near-instant”) and extended thinking modes.
- Optimised for responsiveness, cost and high-volume production workloads.
- Strong coding performance relative to prior Sonnet versions (improved over Sonnet 3.7).
- Available even in free tiers (alongside paid plans).
- Better suited for general-purpose use and agents where speed + cost-efficiency matter.
Try These Prompts
Discover AI prompts that work great with these models. Use them to build powerful AI tools on Appaca.
Best for Claude 4.1 Opus
textAI Tutor - Concept Explainer
Create an AI tutor that explains complex concepts in simple terms, adapting to the students learning level and style.
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Generate professional, empathetic responses to customer complaints that de-escalate situations and rebuild trust.
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Build an SEO strategy to generate business value even when the SERP answers the question (snippets, PAA, AI overviews).
Best for Claude 4 Sonnet
textGoverning Statutes & Regulations (Jurisdiction Scan)
Identify the governing statutes, regulations, agencies, and enforcement considerations for a legal issue in a specific jurisdiction.
Exit Ticket Creator
Generate quick formative assessments that gauge student understanding and inform next-day instruction.
Create Wealth Plan
Create a comprehensive wealth plan with this AI prompt, embodying Victor Sterling's analytical approach to strategic investing and wealth management.
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