Create personal apps powered by AI models
Get started freeClaude 4 Sonnet vs Claude 3 Haiku
Compare Claude 4 Sonnet and Claude 3 Haiku. Build AI products powered by either model on Appaca.
Model Comparison
| Feature | Claude 4 Sonnet | Claude 3 Haiku |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Model Type | text | text |
| Context Window | 1,000,000 tokens | 200,000 tokens |
| Input Cost | $3.00/ 1M tokens | $0.25/ 1M tokens |
| Output Cost | $15.00/ 1M tokens | $1.25/ 1M tokens |
Put these models to work for you
Create personal apps and internal tools powered by Claude 4 Sonnet, Claude 3 Haiku, and 20+ other AI models. Just describe what you need — your app is ready in minutes.
Strengths & Best Use Cases
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.
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 Sonnet
textCold Email Generator
Generate personalized cold emails that get responses using proven frameworks and personalization techniques.
Create Wealth Plan
Create a comprehensive wealth plan with this AI prompt, embodying Victor Sterling's analytical approach to strategic investing and wealth management.
Code Generator
Generate efficient, documented, and bug-free code snippets in any programming language.
Best for Claude 3 Haiku
textSupport Ticket Detective: Bucket Audience Problems
Turn support tickets, FAQs, and customer emails into thematic pain-point buckets with headline ideas for each.
Weekly Meal Planner
Create a customized weekly meal plan based on your dietary preferences, goals, and cooking time.
Email Subject Line Generator
Generate high-converting email subject lines that boost open rates using proven psychological triggers and A/B testing frameworks.
Build Apps Powered by AI
Use Appaca to create ready-to-use apps for work or everyday life. No coding needed.
Client Management
Organize client details, projects, and communication.
Learn moreChore Chart App
Assign chores, track tasks, and manage household routines.
Learn moreHome Inventory App
Track household items, receipts, warranties, and records.
Learn moreTodo List App
Build a personal task manager shaped to your workflow.
Learn moreReady to put Claude 4 Sonnet or Claude 3 Haiku to work?
Create personal apps and internal tools on Appaca in minutes. No coding required.