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LLM ComparisonClaude 4 OpusQwen3-Flash

Claude 4 Opus vs Qwen3-Flash

Compare Claude 4 Opus and Qwen3-Flash. Build AI products powered by either model on Appaca.

Model Comparison

FeatureClaude 4 OpusQwen3-Flash
ProviderAnthropicAlibaba Cloud
Model Typetexttext
Context Window200,000 tokens1,000,000 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 Opus

Anthropic
  • 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.

Qwen3-Flash

Alibaba Cloud

1. 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.

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