Claude 4 Opus vs QwQ-Plus
Compare pricing, context windows, and strengths for Claude 4 Opus by Anthropic and QwQ-Plus by Alibaba Cloud - and see how to put either to work in Appaca.
Claude 4 Opus
The flagship model, focused on deep reasoning, large-scale coding and sustained multi-step agentic workflows.
View Claude 4 OpusQwQ-Plus
A reasoning-optimized model built on Qwen2.5 with strong math and code performance.
View QwQ-PlusClaude 4 Opus vs QwQ-Plus at a glance
Specs and pricing side by side, from the Appaca AI models directory.
| Spec | Claude 4 Opus | QwQ-Plus |
|---|---|---|
| Provider | Anthropic | Alibaba Cloud |
| Model type | Text | Text |
| Context window | 200K tokens | 131.1K tokens |
| Input price | $15 / 1M tokens | $0.23 / 1M tokens |
| Output price | $75 / 1M tokens | $0.574 / 1M tokens |
| Status | Superseded by Claude 4.1 Opus | Current |
How Claude 4 Opus and QwQ-Plus differ
What the numbers mean in practice when choosing between Claude 4 Opus and QwQ-Plus.
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QwQ-Plus is 98% cheaper on input tokens ($0.23 vs $15 per million), which adds up quickly in document-heavy workloads.
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QwQ-Plus is 99% cheaper on output tokens ($0.574 vs $75 per million) - the bigger factor for tools that generate long documents.
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Claude 4 Opus's 200K tokens context window is roughly 1.5x larger than QwQ-Plus's 131.1K tokens, so it can work across bigger codebases, contracts, or archives in one pass.
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Claude 4 Opus has been superseded by Claude 4.1 Opus - for new builds, consider the newer model first.
Strengths side by side
Where each model shines, according to benchmarks and provider positioning.
Claude 4 Opus
- Highest capability in the family: described as “our most powerful model yet” by Anthropic.
- Exceptional at long-running tasks requiring thousands of steps and sustained focus (e.g., continuous codebase work for hours).
- Excellent performance on benchmarks: e.g., SWE-bench 72.5 % and Terminal-bench 43.2 %.
- Designed for complex agentic workflows, deep reasoning, tool use, and large context windows.
- Placed under a higher safety classification (ASL-3) due to its frontier capability and risk profile.
QwQ-Plus
1. Deep reasoning specialization
- Competes with DeepSeek-R1 full-performance levels.
- Excellent for math, proofs, symbolic logic.
2. Strong code reasoning
- Top-tier LiveCodeBench performance.
3. Chain-of-thought supported
- Up to 32K reasoning tokens.
4. Reliable structured outputs
- Consistent on difficult multi-step problems.
Use Claude 4 Opus or QwQ-Plus - or both
Appaca is the AI workspace for operators. Build internal tools and AI co-workers powered by Claude 4 Opus or QwQ-Plus - connected to your real data and ready for your whole team. No code, no deployment.
Describe it, and it's built
Tell the Appaca agent the internal tool you need and it builds a working app powered by Claude 4 Opus or QwQ-Plus. No code, no API keys, no deployment.
Switch models without rebuilding
Start on Claude 4 Opus, test the same tool on QwQ-Plus, and keep whichever performs better - the rest of your app stays exactly as it is.
Automated for the whole team
Schedule tools to run on autopilot - daily digests, weekly reports, real-time triggers - and share them with your whole team from one workspace.
Describe it, and it's built
Tell the Appaca agent what your team needs and it builds a working app powered by Claude 4 Opus or QwQ-Plus - connected to the tools you already use.
Related comparisons
See how Claude 4 Opus and QwQ-Plus stack up against other models in the directory.
FAQs
QwQ-Plus is generally cheaper: $0.23 input / $0.574 output per million tokens, versus $15 / $75 for Claude 4 Opus. Actual cost depends on how many tokens your workload reads and writes.
Claude 4 Opus has the larger context window at 200K tokens, compared to 131.1K tokens for QwQ-Plus. A larger window means the model can consider more text at once - useful for long contracts, codebases, or months of records.
It depends on the job. Compare the pricing, context window, and strengths above against your workload - and remember the choice isn't permanent. In Appaca you can build a tool on Claude 4 Opus, test the same tool on QwQ-Plus, and switch at any time without rebuilding anything.
Yes. Appaca is a no-code AI workspace: describe the internal tool your team needs and the Appaca agent builds it as a working app powered by Claude 4 Opus, QwQ-Plus, or any other model in the directory - with a built-in database, team access, and integrations. No API keys to wire up and nothing to deploy.
Build AI tools with Claude 4 Opus or QwQ-Plus
Describe the tool your team needs and get a working app powered by the model you choose - with a built-in database, team access, and integrations. No code, no deployment.