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  1. Home/
  2. Compare/
  3. Claude 2 vs Qwen3.5 Flash
Updated Feb 2026

Claude 2 vs Qwen3.5 Flash

Qwen3.5 Flash is cheaper than Claude 2 at $0.1/M vs $11.02/M input tokens.

Simple Falling Object Game

Catch the falling object. Paddle at the bottom, score at the top, one file.

Loading the build
Claude 2
Loading the build
Qwen3.5 Flash

Which answer wins?

Written rounds

2 prompts
  • Seven pantry ingredients, one dish, and a name worth saying out loud.

    Claude 2: Here is a 7-ingredient recipe for a sweet dish I'll call "Cinnamon Apple Surprise": Cinnamon Apple Surprise Ingredients: 3 apples, cored and sliced 1⁄4 cup brown sugar 1⁄4 cup all-purpose flour 1 tsp ground cinnamon 1⁄4 tsp nutmeg 2 tbsp butter, melted 1 refrigerated pie crust Instructions: Preheat oven to 375°F.

    Qwen3.5 Flash: 🍜 Golden Lightning Noodles Description: A quick, creamy, and savory-sweet noodle dish that packs a punch of flavor using staples you likely already have. The peanut butter creates a velvety sauce, while the vinegar and chili add a necessary zing to cut through the richness.

    Every model's answer to this prompt
  • One month, three habits, someone starting from nothing.

    Claude 2: Here is a 1-month beginner health and longevity plan focused on diet, exercise, and sleep: Diet: Eliminate sugary drinks and limit sweets. Replace with water and fruits. Eat more veggies. Aim for 1-2 cups with each meal. Focus on dark leafy greens, broccoli, carrots. Increase fiber intake.

    Qwen3.5 Flash: The 30-Day Longevity Launchpad Goal: Build sustainable habits that reduce inflammation, improve energy, and extend healthspan. Mindset: Consistency beats intensity. Do not aim for perfection; aim for showing up. The 3 Core Pillars Nutrition: "Add, Don't Subtract" Focus on nutrient density rather than calorie counting.

    Every model's answer to this prompt

Price and specs

Claude 2 and Qwen3.5 Flash compared across 5 shared prompts
SpecClaude 2Qwen3.5 Flash
Input price$11.02/M tokens$0.1/M tokens
Output price$32.68/M tokens$0.4/M tokens
Context window100K tokens1.0M tokens
Weights—Closed
Free API (OpenRouter)NoNo
ReleasedJun 2023Feb 2026
At 10M a month$110$110$1.00$1.00
1M10M100M1B10M tokens

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

Where to run it1 host
Claude 2

No hosts listed on OpenRouter.

Qwen3.5 Flash1 host
HostInOutContextUptime
  • Alibaba Cloud$0.07 in·$0.26 out·1M·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.

Common questions

What is the difference between Claude 2 and Qwen3.5 Flash?

Claude 2 is developed by Anthropic while Qwen3.5 Flash is developed by Qwen. Claude 2 has a 100K token context window vs Qwen3.5 Flash's 1.0M. You can compare their actual outputs across 5 challenges on Rival to see how they differ in practice.

Which is better, Claude 2 or Qwen3.5 Flash?

It depends on your use case. Claude 2 and Qwen3.5 Flash each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 5 challenges so you can judge which fits your needs best.

How much does Claude 2 cost compared to Qwen3.5 Flash?

Claude 2 costs $11.02/M input tokens and Qwen3.5 Flash costs $0.1/M input tokens. Qwen3.5 Flash is $10.92/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 2 and Qwen3.5 Flash on Rival?

This page shows a side-by-side comparison of Claude 2 and Qwen3.5 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 2 vs Step 5 PreviewLanded Oct 2026
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  • Claude 2 vs GPT-6.1 SolLanded Sep 2026
  • Qwen3.5 Flash vs Claude Sonnet 5.5Landed Sep 2026
  • Claude 2 vs Solar Mini 4Landed Sep 2026
  • Qwen3.5 Flash vs Qwen3.8 Max PrimeLanded Sep 2026

Same lab, same size, long tail

  • Claude 2 vs Claude Haiku 5.5Version compare
  • Claude 2 vs Claude Sonnet 5.5Version compare
  • Qwen3.5 Flash vs Qwen3.5 122B A10BVersion compare
  • Qwen3.5 Flash vs Qwen3.8 Omni FlashSame lab
  • Qwen3.5 Flash vs MiniMax M2.1New provider
  • Claude 2 vs MiniMax M2.5Same size
  • Claude 2 vs MiniMax M2.7Same size
  • Claude 2 vs MiniMax M3Same size

Model pages

  • Claude 25 outputs, specs and price
  • Qwen3.5 Flash53 outputs, specs and price
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