Create personal apps powered by AI models
Get started freeGPT-5 Pro vs Claude 4 Sonnet
Compare GPT-5 Pro and Claude 4 Sonnet. Build AI products powered by either model on Appaca.
Model Comparison
| Feature | GPT-5 Pro | Claude 4 Sonnet |
|---|---|---|
| Provider | OpenAI | Anthropic |
| Model Type | text | text |
| Context Window | 400,000 tokens | 1,000,000 tokens |
| Input Cost | $15.00/ 1M tokens | $3.00/ 1M tokens |
| Output Cost | $120.00/ 1M tokens | $15.00/ 1M tokens |
Put these models to work for you
Create personal apps and internal tools powered by GPT-5 Pro, Claude 4 Sonnet, and 20+ other AI models. Just describe what you need - your app is ready in minutes.
Strengths & Best Use Cases
GPT-5 Pro
OpenAI1. Highest reasoning quality in the GPT-5 family
- Uses significantly more compute to "think harder" before responding.
- Designed for the toughest reasoning tasks where answer quality matters more than speed.
- Produces more precise, reliable, and detailed outputs than standard GPT-5.
2. Advanced multi-turn reasoning via Responses API
- Available only in the Responses API to support:
- Multi-turn internal model interactions before returning a reply.
- Advanced control patterns (e.g., background mode for long-running jobs).
- Ideal for complex workflows, deep planning, and multi-step analysis.
3. Configured for maximum effort by default
- Always runs with reasoning.effort: 'high' (no lower-effort mode).
- Prioritizes depth and correctness over latency and cost.
4. Multimodal input
- Accepts text + image as input.
- Outputs text, with strong instruction-following and analysis capabilities.
5. Tooling and ecosystem integration
- Supports Web Search, File Search, and Image Generation (as tools).
- Supports MCP and other Responses API tooling patterns.
- Does not support Code Interpreter and does not support Computer Use, keeping focus on pure reasoning + tools.
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.
Prompts to Get Started
Use these prompts to power AI products you build on Appaca. Each works great with the models above.
Best for GPT-5 Pro
textCreative Short Story Generator
Generate unique short stories with compelling plots, diverse characters, and immersive settings.
Product Launch Campaign (Messaging + Timeline)
Plan a product launch campaign that highlights your USP and shows how the new offering solves persona challenges.
Lead Generation Strategy (USP-to-Offer Engine)
Build a lead generation strategy that turns your USP into compelling offers and acquisition channels tailored to persona challenges.
Best for Claude 4 Sonnet
textHotel vs Short-Term Rental: True Cost & Value Comparison
Compare the true total cost and business amenities of a hotel vs an approved short-term rental for longer stays.
Content Repurposing System (1 → Many Channels)
Build a content repurposing system that extends your best messaging across channels while keeping the USP and persona challenges consistent.
Customer Retention Strategy (Loyalty + Expansion)
Develop a retention strategy that reinforces your USP, improves customer outcomes, and responds to evolving persona challenges.
Build Apps Powered by AI
Use Appaca to create ready-to-use apps for work or everyday life. No coding needed.
Ready to put GPT-5 Pro or Claude 4 Sonnet to work?
Create personal apps and internal tools on Appaca in minutes. No coding required.