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Get started freeClaude 4.1 Opus vs Qwen3-Flash
Compare Claude 4.1 Opus and Qwen3-Flash. Build AI products powered by either model on Appaca.
Model Comparison
| Feature | Claude 4.1 Opus | Qwen3-Flash |
|---|---|---|
| Provider | Anthropic | Alibaba Cloud |
| Model Type | text | text |
| Context Window | 1,000,000 tokens | 1,000,000 tokens |
| Input Cost | $15.00/ 1M tokens | $0.02/ 1M tokens |
| Output Cost | $75.00/ 1M tokens | $0.22/ 1M tokens |
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Strengths & Best Use Cases
Claude 4.1 Opus
Anthropic1. Advanced Coding Performance
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Achieves 74.5% on SWE-bench Verified, improving the Claude family's state-of-the-art coding abilities.
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Stronger at:
- Multi-file code refactoring
- Large codebase debugging
- Pinpointing exact corrections without unnecessary edits
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Outperforms Opus 4 and shows gains comparable to jumps seen in past major releases.
2. Improved Agentic & Research Capabilities
- Better at maintaining detail accuracy in long research tasks.
- Enhanced agentic search and step-by-step problem solving.
- Performs reliably across complex multi-turn reasoning tasks.
3. Validated by Real-World Users
- GitHub: Better multi-file refactoring and code adjustments.
- Rakuten Group: High precision debugging with minimal collateral changes.
- Windsurf: One standard deviation improvement on their junior dev benchmark - similar magnitude to Sonnet 3.7 → Sonnet 4.
4. Hybrid-Reasoning Benchmark Improvements
- Improvements across TAU-bench, GPQA Diamond, MMMLU, MMMU, AIME (with extended thinking).
- Stronger robustness in long-context reasoning tasks.
Qwen3-Flash
Alibaba Cloud1. Enhanced Flash-generation performance
- Better factual accuracy and reasoning.
2. Very inexpensive
- Perfect for high-volume automation and micro-agents.
3. Hybrid thinking mode
- Not typical for small models.
4. Large context capacity
- Up to 1M tokens.
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 4.1 Opus
textForum Insider: Emotional Pain Points + Empathy Statements
Analyze forum threads and social comments to uncover urgent problems, voice-of-customer language, and empathy statements for marketing copy.
Exit Ticket Creator
Generate quick formative assessments that gauge student understanding and inform next-day instruction.
Code Generator
Generate efficient, documented, and bug-free code snippets in any programming language.
Best for Qwen3-Flash
textExpense Policy Compliance Check (Hotel Booking)
Verify whether a hotel booking meets corporate policy for rate, distance, and cancellation rules before you reserve.
Lead Scoring System (USP Engagement + Pain Signals)
Design a lead scoring model that prioritizes prospects based on engagement with USP messaging and signals of persona challenge severity.
Employee Advocacy Program (Social Sharing System)
Create an employee advocacy program that helps your team share USP-focused content and engage with persona conversations about challenges.
Build Apps Powered by AI
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Todo List App
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Track stock levels, manage orders, and organize supplies.
Learn moreEmployee Directory
Build a staff directory with org charts and team views.
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