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Get started freeClaude 4.5 Sonnet vs DeepSeek R1
Compare Claude 4.5 Sonnet and DeepSeek R1. Build AI products powered by either model on Appaca.
Model Comparison
| Feature | Claude 4.5 Sonnet | DeepSeek R1 |
|---|---|---|
| Provider | Anthropic | DeepSeek |
| Model Type | text | text |
| Context Window | 1,000,000 tokens | N/A |
| Input Cost | $3.00/ 1M tokens | N/A |
| Output Cost | $15.00/ 1M tokens | N/A |
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Build your first app freeStrengths & Best Use Cases
Claude 4.5 Sonnet
Anthropic1. Best-in-class coding performance
- #1 on SWE-bench Verified (77.2% standard, 82.0% high-compute).
- Excels at debugging, architecture, and multi-file code generation.
- Maintains coherence for extremely long tasks (30+ hours).
2. State-of-the-art computer use & agents
- Leads OSWorld at 61.4%.
- Strongest model for agentic workflows, multi-step tool use, and real computer control.
- Powering Claude Code, the new Claude Agent SDK, and Chrome agent actions.
3. Advanced reasoning & math
- Large improvements across reasoning-heavy benchmarks (AIME, MMMLU, τ2-bench, Terminal-Bench).
- Deep multi-step reasoning with extended or interleaved thinking.
4. High alignment & safety
- Most aligned Claude model to date with reduced deception, hallucinations, sycophancy, and harmful compliance.
- Strong protections against prompt injection for agentic tasks (ASL-3 safeguards).
5. Domain-expert performance
- Notable gains in finance, law, medicine, and STEM tasks.
- Trusted by early customers for long-context legal analysis, multi-file engineering, security research, and red-teaming.
DeepSeek R1
DeepSeek1. Real-time reasoning and decision-making
- Built for scenarios that require instant output.
- Great for applications with fast-changing data.
2. Excellent for dynamic optimization
- Pricing adjustments, recommendations, routing, and system tuning.
3. Strong performance in finance and e-commerce
- Tracks market shifts.
- Updates predictions on the fly.
- Optimizes recommendations in real time.
4. High-speed pattern recognition
- Quickly interprets signals from streaming data.
- Useful in trading bots, alerts, and monitoring systems.
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 4.5 Sonnet
textDatabase Schema Review
Review a database schema for performance, normalisation, and best practices.
Student Study Guide
Create a comprehensive study guide for an upcoming exam or unit.
Diagnostic Pre-Assessment
Create a diagnostic assessment to identify students' prior knowledge before a unit.
Best for DeepSeek R1
textInfluencer Affiliate Program Brief
Onboard influencers into your affiliate program with a clear, motivating brief. Outlines commission structure and promotional guidelines.
Meeting Summary Email
Write a clear post-meeting summary email with decisions and action items.
Company Values Statement
Write a set of company values with definitions and behavioural examples.