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Get started freeGPT-5 vs Claude 3 Opus
Compare GPT-5 and Claude 3 Opus. Build AI products powered by either model on Appaca.
Model Comparison
| Feature | GPT-5 | Claude 3 Opus |
|---|---|---|
| Provider | OpenAI | Anthropic |
| Model Type | text | text |
| Context Window | 400,000 tokens | 200,000 tokens |
| Input Cost | $1.25/ 1M tokens | $15.00/ 1M tokens |
| Output Cost | $10.00/ 1M tokens | $75.00/ 1M tokens |
Stop choosing. Use both.
With Appaca you don't have to pick — build apps that are powered by GPT-5, Claude 3 Opus, for your specific use case.
Build your first app freeStrengths & Best Use Cases
GPT-5
OpenAI1. High reasoning capability
- Designed for intelligent reasoning across complex domains.
- Supports reasoning tokens and adjustable reasoning effort.
2. Strong coding and agentic performance
- Optimized for multi-step coding tasks, tool-use chains, and agent workflows.
- Handles complex logic, planning, and structured problem solving reliably.
3. Multimodal input
- Accepts text + image as input.
- Produces text outputs with strong instruction following.
4. Extensive tool support
- Works with Web Search, File Search, Image Generation (as a tool), Code Interpreter, MCP, and more.
- Integrated across Chat Completions, Responses API, Realtime, Assistants, Batch, Embeddings, etc.
Claude 3 Opus
Anthropic1. Intelligence & Reasoning
- Highest capability in the Claude 3 family
- Near-human comprehension and fluency
- Excels at MMLU, GPQA, GSM8K, advanced reasoning tasks
2. Complex Problem Solving
- Best for research, strategy, multi-step planning
- Handles ambiguous, open-ended tasks with ease
3. Vision & Multimodal Capabilities
- Strong chart/graph understanding
- Processes documents, technical diagrams, and dense visual data
4. Recall & Long-Context Reasoning
- Near-perfect recall (>99% on NIAH benchmark)
- Handles very large documents and multi-file workflows
5. Enterprise-Grade Accuracy
- Significantly reduced hallucinations
- High correctness rate for factual queries
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
textTikTok Hook & Script
Write a short TikTok video script with a strong opening hook.
Personal Achievement Announcement
Write a social media post announcing a personal achievement. Celebrates without bragging, and invites community.
Business Case Document
Write a business case to get approval for a project or investment.
Best for Claude 3 Opus
textStore Reopening Announcement
Announce a store reopening or relaunch with a compelling email and social post. Re-engages past customers and builds buzz.
360° Team Feedback Request
Write a 360-degree feedback questionnaire to gather peer and manager insights.
Action Item Extraction
Extract and organise action items from meeting notes or a document.