Create personal apps powered by AI models
Get started freeClaude 4.5 Opus vs Qwen3-Plus
Compare Claude 4.5 Opus and Qwen3-Plus. Build AI products powered by either model on Appaca.
Create an AI-powered appModel Comparison
| Feature | Claude 4.5 Opus | Qwen3-Plus |
|---|---|---|
| Provider | Anthropic | Alibaba Cloud |
| Model Type | text | text |
| Context Window | 200,000 tokens | 1,000,000 tokens |
| Input Cost | $5.00/ 1M tokens | $0.12/ 1M tokens |
| Output Cost | $25.00/ 1M tokens | $0.29/ 1M tokens |
Put these models to work for you
Create personal apps and internal tools powered by Claude 4.5 Opus, Qwen3-Plus, and 20+ other AI models. Just describe what you need — your app is ready in minutes.
Strengths & Best Use Cases
Claude 4.5 Opus
Anthropic1. Maximum capability with more practical pricing
- Anthropic introduced Opus 4.5 as its most intelligent model, combining maximum capability with practical performance.
- It was positioned as the best model in the world for coding, agents, and computer use at launch, with pricing reduced to $5/M input and $25/M output.
2. Step-change gains for coding and advanced agent work
- Anthropic describes Opus 4.5 as state-of-the-art on real-world software engineering tests.
- It also improved everyday knowledge-work tasks like deep research, slides, and spreadsheets while staying strong on long-horizon agent workflows.
3. Better control over reasoning depth
- Opus 4.5 introduced the
effortparameter, letting developers trade off response thoroughness against token efficiency. - This made it easier to use one flagship model across both high-depth analysis and more cost-sensitive production workloads.
4. Stronger computer use and continuity
- Added enhanced computer use with a zoom action for inspecting detailed screen regions.
- Preserves prior thinking blocks across turns, helping the model maintain reasoning continuity in extended multi-step tasks.
Qwen3-Plus
Alibaba Cloud1. Major upgrade over previous Plus models
- Better reasoning, code generation, and tool-call performance.
2. Supports thinking vs non-thinking modes
- Thinking for hard problems.
- Non-thinking for speed.
3. Improved human preference alignment
- Better writing quality, multi-turn memory, and formatting stability.
4. Excellent for agent-style apps
- Accurate function calling and tool use.
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 Opus
textScore Cold Sales Emails
Evaluate and improve a cold sales email using a weighted scorecard (clarity, relevance, proof, CTA, deliverability) with specific rewrite suggestions.
Sales Objection Flipper: Reveal Hidden Pain Points
Convert common sales objections into underlying fears and create educational content ideas that overcome them before the sales call.
Create Discovery Questions (Interrogatories + RFPs + RFAs)
Generate clear, organized discovery questions and requests tailored to a specific legal issue and case theory.
Best for Qwen3-Plus
textContent Marketing Strategy (Thought Leadership)
Create a persona-first content strategy that positions your brand as a thought leader and connects your USP to the challenges you solve.
Bug Fixer & Debugger
Identify bugs in your code, understand why they happen, and get a corrected version.
Customer Feedback Loop (Insights → Messaging)
Design a customer feedback loop to track evolving persona challenges and preferences, informing marketing strategy and USP refinement.
Build Apps Powered by AI
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