What is the difference between Claude 3.7 Thinking Sonnet and Qwen3.8 Omni Flash?

Claude 3.7 Thinking Sonnet is developed by Anthropic while Qwen3.8 Omni Flash is developed by Qwen. Claude 3.7 Thinking Sonnet has a 200K token context window vs Qwen3.8 Omni Flash's 1.0M. You can compare their actual outputs across 9 challenges on Rival to see how they differ in practice.

Which is better, Claude 3.7 Thinking Sonnet or Qwen3.8 Omni Flash?

It depends on your use case. Claude 3.7 Thinking Sonnet and Qwen3.8 Omni Flash each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 9 challenges so you can judge which fits your needs best.

How much does Claude 3.7 Thinking Sonnet cost compared to Qwen3.8 Omni Flash?

Claude 3.7 Thinking Sonnet costs $6/M input tokens and Qwen3.8 Omni Flash costs $0.15/M input tokens. Qwen3.8 Omni Flash is $5.85/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 3.7 Thinking Sonnet and Qwen3.8 Omni Flash on Rival?

This page shows a side-by-side comparison of Claude 3.7 Thinking Sonnet and Qwen3.8 Omni 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.

Updated Sep 2026

Claude 3.7 Thinking SonnetvsQwen3.8 Omni Flash

Qwen3.8 Omni Flash is cheaper than Claude 3.7 Thinking Sonnet at $0.15/M vs $6/M input tokens.

Claude 3.7 Thinking Sonnet and Qwen3.8 Omni Flash compared across 9 shared prompts
Spec	Claude 3.7 Thinking Sonnet	Qwen3.8 Omni Flash
Input price	$6/M tokens	$0.15/M tokens
Output price	$30/M tokens	$0.47/M tokens
Context window	200K tokens	1.0M tokens
Weights	—	Closed
Free API (OpenRouter)	No	No
Released	Feb 2025	Sep 2026

Side by side

Same prompt, both answers

Opening lines from 2 of the 9 prompts both answered. Formatting stripped, words untouched.

Startup Pitch Teardown

Here's a pitch deck summary for a startup called "MindMeld AI": **Slide 1 - Vision:** "We're building the future of human-AI collaboration.…

Claude 3.7 Thinking Sonnet374 words

Analysis: The 3 Weakest Claims in MindMeld AI's Pitch Deck "MindMeld AI reads your brainwaves to predict what you want to type before you think it" Why it's weak: This claim makes a scientifically impossible promise.

Read the full answer

Qwen3.8 Omni Flash2,971 words

The three weakest claims—ranked by how likely they are to fail investor diligence—are: “94% accuracy… works with any language, any device.” “TAM: $180B” based on 3.5B smartphone users. “FDA clearance” consuming 40% of the Series A raise.

Read the full answer

Explain Like I'm a Specific Expert

Explain how a large language model (like GPT or Claude) learns and generates text to each of these three audiences: 1. **An experienced…

Claude 3.7 Thinking Sonnet632 words

How Large Language Models Work: Three Tailored Explanations For an Experienced Software Engineer What makes LLMs fascinating from a systems perspective is that they're essentially massive distributed computing graphs that learn to compress and reconstitute information through backpropagation.

Read the full answer

Qwen3.8 Omni Flash913 words

For the experienced software engineer A large language model is best thought of as a gigantic, parameterized probabilistic function that maps a sequence of tokens to a probability distribution over the next token.

Read the full answer

Our Verdict

Claude 3.7 Thinking Sonnet

Qwen3.8 Omni Flash

Not enough votes to call it. On the specs, nothing separates them.

Qwen3.8 Omni Flash costs 64x less per token.

Too close to call

API pricing

Cost per 1M tokens

Claude 3.7 Thinking Sonnet

Input

$6.00

Output

$30.00

Qwen3.8 Omni Flash

Input

$0.15

40× cheaper

Output

$0.47

64× cheaper

Qwen3.8 Omni Flash is cheaper on both: 40× input, 64× output.

Where to run it

1 host

Claude 3.7 Thinking Sonnet

No hosts listed on OpenRouter.

Qwen3.8 Omni Flash1 host

HostInOutContextUptime

Alibaba Clouddegraded$0.15 in$0.47 out1M99% up

Per million tokens. Prices and uptime via OpenRouter, checked 25 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Same prompt, both answers

Startup Pitch Teardown

Explain Like I'm a Specific Expert

Cost per 1M tokens

1 host

What we learned reading every model

Common questions

What is the difference between Claude 3.7 Thinking Sonnet and Qwen3.8 Omni Flash?

Which is better, Claude 3.7 Thinking Sonnet or Qwen3.8 Omni Flash?

How much does Claude 3.7 Thinking Sonnet cost compared to Qwen3.8 Omni Flash?

How can I compare Claude 3.7 Thinking Sonnet and Qwen3.8 Omni Flash on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages

Same prompt, both answers

Startup Pitch Teardown

Explain Like I'm a Specific Expert

Cost per 1M tokens

1 host

What we learned reading every model

Common questions

What is the difference between Claude 3.7 Thinking Sonnet and Qwen3.8 Omni Flash?

Which is better, Claude 3.7 Thinking Sonnet or Qwen3.8 Omni Flash?

How much does Claude 3.7 Thinking Sonnet cost compared to Qwen3.8 Omni Flash?

How can I compare Claude 3.7 Thinking Sonnet and Qwen3.8 Omni Flash on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages