Claude Sonnet 4.5 vs Qwen3 30B A3B Thinking 2507
Compare Claude Sonnet 4.5 by Anthropic against Qwen3 30B A3B Thinking 2507 by Qwen, context windows of 200K vs 262K, tested across 43 shared challenges. Updated April 2026.
Which is better, Claude Sonnet 4.5 or Qwen3 30B A3B Thinking 2507?
Claude Sonnet 4.5 and Qwen3 30B A3B Thinking 2507 are both competitive models. Claude Sonnet 4.5 costs $3/M input tokens vs $0.071/M for Qwen3 30B A3B Thinking 2507. Context windows: 200K vs 262K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Sonnet 4.5 and Qwen3 30B A3B Thinking 2507
Claude Sonnet 4.5 is made by anthropic while Qwen3 30B A3B Thinking 2507 is from qwen. Claude Sonnet 4.5 has a 200K token context window compared to Qwen3 30B A3B Thinking 2507's 262K. On pricing, Claude Sonnet 4.5 costs $3/M input tokens vs $0.071/M for Qwen3 30B A3B Thinking 2507.
No community votes yet. On paper, Claude Sonnet 4.5 has the edge — newer, major provider backing.
Qwen3 30B A3B Thinking 2507 is 53x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Sonnet 4.5 uses 6.8x more sentence length
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
