Compare Claude 3 Opus by Anthropic against Qwen3 30B A3B Thinking 2507 by Qwen, context windows of 200K vs 262K, tested across 12 shared challenges. Updated April 2026.
Claude 3 Opus and Qwen3 30B A3B Thinking 2507 are both competitive models. Claude 3 Opus costs $15/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.
Claude 3 Opus is made by anthropic while Qwen3 30B A3B Thinking 2507 is from qwen. Claude 3 Opus has a 200K token context window compared to Qwen3 30B A3B Thinking 2507's 262K. On pricing, Claude 3 Opus costs $15/M input tokens vs $0.071/M for Qwen3 30B A3B Thinking 2507.
No community votes yet. On paper, Claude 3 Opus has the edge — bigger model tier, major provider backing.
Qwen3 30B A3B Thinking 2507 is 263x cheaper per token — worth considering if cost matters.
Qwen3 30B A3B Thinking 2507 uses 746.7x more bold
Ask 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.

Compare Claude 3 Opus by Anthropic against Qwen3 30B A3B Thinking 2507 by Qwen, context windows of 200K vs 262K, tested across 12 shared challenges. Updated April 2026.
Claude 3 Opus and Qwen3 30B A3B Thinking 2507 are both competitive models. Claude 3 Opus costs $15/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.
Claude 3 Opus is made by anthropic while Qwen3 30B A3B Thinking 2507 is from qwen. Claude 3 Opus has a 200K token context window compared to Qwen3 30B A3B Thinking 2507's 262K. On pricing, Claude 3 Opus costs $15/M input tokens vs $0.071/M for Qwen3 30B A3B Thinking 2507.
No community votes yet. On paper, Claude 3 Opus has the edge — bigger model tier, major provider backing.
Qwen3 30B A3B Thinking 2507 is 263x cheaper per token — worth considering if cost matters.
Qwen3 30B A3B Thinking 2507 uses 746.7x more bold
Ask 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.

12 fights queued
12 fights queued