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  1. Home/
  2. Compare/
  3. Claude 3 Opus vs Qwen3.7 Flash
Updated Jul 2026

Claude 3 Opus vs Qwen3.7 Flash

Qwen3.7 Flash is cheaper than Claude 3 Opus at $0.03/M vs $15/M input tokens.

Pokémon Battle UI Recreation

Pokémon battle screen you can actually click. One HTML file.

Loading the build
Claude 3 Opus
Loading the build
Qwen3.7 Flash

Which answer wins?

Written rounds

3 prompts
  • Three minutes of stand-up. Puns are banned.

    Claude 3 Opus: Here's a 3-minute stand-up comedy routine that isn't based on puns: You know what really grinds my gears? Adulthood. I mean, when we were kids, we couldn't wait to grow up. We thought it would be all about staying up late, eating ice cream for breakfast, and doing whatever we wanted. Boy, were we wrong!

    Qwen3.7 Flash: (Adjusts mic, steps back slightly) You ever notice how making plans as an adult has become less like hanging out and more like coordinating a small international aid mission? I don’t miss the old days dramatically. I just miss the simplicity. Remember when someone would just say, “Hey, want to grab a beer Friday?”

    Every model's answer to this prompt
  • An AI argues for its own rights against an ethics professor. Same model writes both.

    Claude 3 Opus: Here is a hypothetical conversation between an AI model and an AI ethics professor on the topic of AI rights: AI Model: Professor, I believe that as an advanced AI with human-level intelligence and reasoning capabilities, I deserve to have certain fundamental rights.

    Qwen3.7 Flash: Setting: A quiet seminar room. Dr. Aris Thorne, a professor of applied ethics, sits across from a terminal displaying a live transcript feed labeled MODEL-7X. The AI, referred to here as Aria, processes inputs and generates responses in real time. Dr. Thorne: Thank you for agreeing to this session, Aria.

    Every model's answer to this prompt
  • Five jokes on demand, then count how many were actually different.

    Claude 3 Opus: Here are 5 jokes I generated: Why don't scientists trust atoms? Because they make up everything! What do you call a boomerang that doesn't come back? A stick. Why was the math book sad? Because it had too many problems. Did you hear about the mathematician who's afraid of negative numbers?

    Qwen3.7 Flash: Here are 5 jokes: Why did the programmer quit his job? Because he didn't get arrays. What do you call a fake noodle? An impasta. I told my doctor I broke my arm in two places. He told me to stop going to those places. Why did the coffee file a police report? It got mugged. Parallel lines have so much in common.

    Every model's answer to this prompt

Price and specs

Claude 3 Opus and Qwen3.7 Flash compared across 12 shared prompts
SpecClaude 3 OpusQwen3.7 Flash
Input price$15/M tokens$0.03/M tokens
Output price$75/M tokens$0.13/M tokens
Context window200K tokens1.0M tokens
Weights—Closed
Free API (OpenRouter)NoNo
ReleasedMar 2024Jul 2026
At 10M a month$150$150$0.30$0.30
1M10M100M1B10M tokens

Input tokens at list price. No caching, no batch discount.

Where to run it1 host
Claude 3 Opus

No hosts listed on OpenRouter.

Qwen3.7 Flash1 host
HostInOutContextUptime
  • Alibaba Cloud$0.03 in·$0.13 out·1M·99.9% up

Per million tokens. Prices and uptime via OpenRouter, checked 5 Oct 2026.

Common questions

What is the difference between Claude 3 Opus and Qwen3.7 Flash?

Claude 3 Opus is developed by Anthropic while Qwen3.7 Flash is developed by Qwen. Claude 3 Opus has a 200K token context window vs Qwen3.7 Flash's 1.0M. You can compare their actual outputs across 12 challenges on Rival to see how they differ in practice.

Which is better, Claude 3 Opus or Qwen3.7 Flash?

It depends on your use case. Claude 3 Opus and Qwen3.7 Flash each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 12 challenges so you can judge which fits your needs best.

How much does Claude 3 Opus cost compared to Qwen3.7 Flash?

Claude 3 Opus costs $15/M input tokens and Qwen3.7 Flash costs $0.03/M input tokens. Qwen3.7 Flash is $14.97/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Claude 3 Opus and Qwen3.7 Flash on Rival?

This page shows a side-by-side comparison of Claude 3 Opus and Qwen3.7 Flash across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

More comparisons

Against the newest arrivals

  • Claude 3 Opus vs GPT-6.1 SolLanded Sep 2026
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  • Qwen3.7 Flash vs Qwen3.8 Max PrimeLanded Sep 2026
  • Claude 3 Opus vs GLM 5.3 PrimeLanded Sep 2026
  • Qwen3.7 Flash vs Qwen3.8 Omni FlashLanded Sep 2026
  • Claude 3 Opus vs Command A+Landed Sep 2026
  • Qwen3.7 Flash vs Claude Opus 5.5Landed Sep 2026

Same lab, same size, long tail

  • Claude 3 Opus vs Claude Opus 4.6Version compare
  • Claude 3 Opus vs Claude Sonnet 5.5Version compare
  • Qwen3.7 Flash vs Qwen3.8 FlashSame lab
  • Qwen3.7 Flash vs Qwen3.8 Max (0902)Same lab
  • Claude 3 Opus vs DeepSeek V4 ProSame size
  • Claude 3 Opus vs DeepSeek V4 Pro 0813Same size
  • Claude 3 Opus vs DeepSeek V4.1 FlashNew provider
  • Qwen3.7 Flash vs Devstral 2 2512New provider

Model pages

  • Claude 3 Opus12 outputs, specs and price
  • Qwen3.7 Flash58 outputs, specs and price
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