o3 vs Claude 3 Opus
Compare o3 and Claude 3 Opus. Build AI products powered by either model on Appaca.
Model Comparison
| Feature | o3 | Claude 3 Opus |
|---|---|---|
| Provider | OpenAI | Anthropic |
| Model Type | text | text |
| Context Window | 200,000 tokens | 200,000 tokens |
| Input Cost | $2.00/ 1M tokens | $15.00/ 1M tokens |
| Output Cost | $8.00/ 1M tokens | $75.00/ 1M tokens |
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Strengths & Best Use Cases
o3
OpenAI1. Advanced reasoning capability
- Designed for multi-step thinking across text, code, and visual inputs.
- Excels at math, science, logic puzzles, and complex analytical workflows.
2. Strong performance across domains
- Highly capable in technical writing, data analysis, and structured problem-solving.
- Useful for research, engineering tasks, and intricate instruction-following.
3. Visual reasoning support
- Accepts image inputs, enabling tasks such as diagram analysis, chart interpretation, and visual logic assessments.
4. High output capacity
- Up to 100,000 output tokens, supporting long-form content, technical breakdowns, and multi-part solutions.
5. Excellent instruction following
- Produces detailed, step-by-step responses for tasks requiring precision and clarity.
- Ideal for educational explanations, system design reasoning, and code walkthroughs.
6. Large 200K context window
- Handles long documents, multi-file reasoning, or extended conversations with minimal loss of context.
7. Broad API support
- Works with Chat Completions, Responses, Realtime, Assistants, Batch, Embeddings, Image Generation, and more.
- Supports streaming and function calling for advanced workflows.
8. Positioned as a legacy reasoning model
- Remains extremely capable but formally succeeded by GPT-5, which offers stronger reasoning and performance.
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 o3
textCollaboration Outreach Request
Draft collaboration outreach messages for partnerships, co-marketing, podcasts, affiliates, and integrations-with clear value exchange and next steps.
Neighborhood Guide Content Creator (Local Expert Blog)
Outline a high-value neighborhood guide blog post that positions you as the local expert with sections for food, parks/schools, vibe, and commute.
Travel Itinerary Generator
Create personalized day-by-day travel itineraries for any destination, budget, and travel style.
Best for Claude 3 Opus
textInteractive Quiz (Diagnose Challenges + Recommend Solutions)
Design a website quiz that helps your persona self-diagnose challenges and recommends next steps aligned to your USP.
Digital Marketing Plan (Channel + Funnel Blueprint)
Build a comprehensive digital marketing plan that targets a persona, addresses their challenges, and highlights your USP across channels and the funnel.
Video Marketing Strategy (Storytelling + Proof)
Build a video marketing strategy that uses storytelling to show how your USP transforms persona challenges into outcomes.