Qwen3 30B A3B vs Claude Opus 4

Compare Qwen3 30B A3B by Qwen against Claude Opus 4 by Anthropic, context windows of 41K vs 200K, tested across 35 shared challenges. Updated April 2026.

Which is better, Qwen3 30B A3B or Claude Opus 4?

Qwen3 30B A3B and Claude Opus 4 are both competitive models. Qwen3 30B A3B costs $0/M input tokens vs $15/M for Claude Opus 4. Context windows: 41K vs 200K tokens. Compare their real outputs side by side below.

Key Differences Between Qwen3 30B A3B and Claude Opus 4

Qwen3 30B A3B is made by qwen while Claude Opus 4 is from anthropic. Qwen3 30B A3B has a 41K token context window compared to Claude Opus 4's 200K. On pricing, Qwen3 30B A3B costs $0/M input tokens vs $15/M for Claude Opus 4.

Our Verdict
Claude Opus 4
Claude Opus 4
Qwen3 30B A3B
Qwen3 30B A3BRunner-up

No community votes yet. On paper, Claude Opus 4 has the edge — bigger model tier, bigger context window, major provider backing.

Slight edge
Writing DNA

Style Comparison

Similarity
87%

Claude Opus 4 uses 187.1x more headings

Qwen3 30B A3B
Claude Opus 4
60%Vocabulary64%
11wSentence Length62w
0.24Hedging0.52
7.6Bold4.4
4.6Lists9.1
0.36Emoji0.11
0.00Headings1.87
0.06Transitions0.27
Based on 4 + 16 text responses
vs

Ask them anything yourself

Qwen3 30B A3BClaude Opus 4

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
Free preview13 of 58 slides
FAQ

Common questions