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Get started freeClaude 4.1 Opus vs Claude 3 Haiku
Compare Claude 4.1 Opus and Claude 3 Haiku. Build AI products powered by either model on Appaca.
Model Comparison
| Feature | Claude 4.1 Opus | Claude 3 Haiku |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Model Type | text | text |
| Context Window | 1,000,000 tokens | 200,000 tokens |
| Input Cost | $15.00/ 1M tokens | $0.25/ 1M tokens |
| Output Cost | $75.00/ 1M tokens | $1.25/ 1M tokens |
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Strengths & Best Use Cases
Claude 4.1 Opus
Anthropic1. Advanced Coding Performance
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Achieves 74.5% on SWE-bench Verified, improving the Claude family's state-of-the-art coding abilities.
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Stronger at:
- Multi-file code refactoring
- Large codebase debugging
- Pinpointing exact corrections without unnecessary edits
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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 3 Haiku
Anthropic1. Speed
- Fastest model in the Claude 3 family
- Near-instant responses for chat, support, and live tools
2. Efficiency
- Most affordable model
- Ideal for massive-scale applications and low-latency use cases
3. Practical Use Cases
- Customer support
- Translations
- Moderation
- Logistics, inventory systems
- Extracting insights from unstructured data
4. Vision Skills
- Handles charts, images, and diagrams quickly
- Useful for scanning large volumes of visual data
Prompts to Get Started
Use these prompts to power AI products you build on Appaca. Each works great with the models above.
Best for Claude 4.1 Opus
textPrepare a Case (Outcome Matrix + Preparation Plan)
Map likely outcomes for a dispute and generate a practical preparation plan across facts, evidence, procedure, and settlement.
Code Review Assistant
Get constructive feedback on your code regarding performance, security, and readability.
Create Wealth Plan
Create a comprehensive wealth plan with this AI prompt, embodying Victor Sterling's analytical approach to strategic investing and wealth management.
Best for Claude 3 Haiku
textLease Addendum Drafter (Permission + Restrictions)
Draft a professional lease addendum clause for special tenant requests (pets, installations, home business) with clear responsibilities and protections.
AI Tutor - Concept Explainer
Create an AI tutor that explains complex concepts in simple terms, adapting to the students learning level and style.
Welcome Email Series Generator
Create a complete automated welcome email sequence that nurtures new subscribers and drives conversions.
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