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  1. Home/
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  3. Claude Sonnet 3.6 (2022-10-22) vs Gemini 2.5 Flash Preview 05-20 (thinking)
Updated May 2025

Claude Sonnet 3.6 (2022-10-22) vs Gemini 2.5 Flash Preview 05-20 (thinking)

Gemini 2.5 Flash Preview 05-20 (thinking) is cheaper than Claude Sonnet 3.6 (2022-10-22) at $0.15/M vs $3/M input tokens.

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Loading the build
Claude Sonnet 3.6 (2022-10-22)
Loading the build
Gemini 2.5 Flash Preview 05-20 (thinking)

Which answer wins?

Written rounds

3 prompts
  • Five jokes on demand, then count how many were actually different.

    Claude Sonnet 3.6 (2022-10-22): Let me help you write code to generate jokes and check their uniqueness. Here's a Python script that does this: When you run this code, it will: Create a list of sample jokes Randomly select 5 jokes from the list Print each selected joke Count and display how many unique jokes were selected Since we're using…

    Gemini 2.5 Flash Preview 05-20 (thinking): Here are 5 jokes: Why don\'t scientists trust atoms? Because they make up everything! What do you call a fake noodle? An impasta! Why did the scarecrow win an award? Because he was outstanding in his field! I told my wife she was drawing her eyebrows too high. She looked surprised.

    Every model's answer to this prompt
  • Three minutes of stand-up. Puns are banned.

    Claude Sonnet 3.6 (2022-10-22): Here's a 3-minute stand-up routine: Hey everyone! You know what's weird? How we all pretend we know what we're doing as adults. Like, I was at the grocery store the other day, standing in the produce section, just staring at avocados like I have any idea how to tell if they're ripe.

    Gemini 2.5 Flash Preview 05-20 (thinking): (Lights up on a stage. Comedian walks to center, adjusts mic, smiles warmly.) \"Alright, alright, settle down you crazy people! Thanks for having me. (Pause fo r applause/laughter) You know, I was scrolling through Instagram earlier, and it\'s just a constant ba rrage of people \'living thei r best life,\' isn\'t it?

    Every model's answer to this prompt
  • Is 9.11 bigger than 9.9? Decimals, not version numbers.

    Claude Sonnet 3.6 (2022-10-22): Yes, 9.11 is greater than 9.9. To understand why, let's look at these decimal numbers: 9.11 = 9 + 11/100 = 9.110 9.9 = 9 + 9/10 = 9.900 When comparing decimal numbers, we can add zeros after the decimal point without changing the value.

    Gemini 2.5 Flash Preview 05-20 (thinking): No, 9.11 is not greater than 9.9. Here\'s how to compare them: Compare the whole numbers: Both have 9. Compare the first digit after the decimal point (the tenths place): In 9.11, the digit is 1. In 9.9, the digit is 9. Since 1 is less than 9, 9.11 is less than 9.9. You can also think of 9.9 as 9.90.

    Every model's answer to this prompt

Price and specs

Claude Sonnet 3.6 (2022-10-22) and Gemini 2.5 Flash Preview 05-20 (thinking) compared across 12 shared prompts
SpecClaude Sonnet 3.6 (2022-10-22)Gemini 2.5 Flash Preview 05-20 (thinking)
Input price$3/M tokens$0.15/M tokens
Output price$15/M tokens$3.5/M tokens
Context window200K tokens1.0M tokens
ParametersNot disclosedNot disclosed
Free API (OpenRouter)NoNo
ReleasedJun 2024May 2025
At 10M a month$30.00$30.00$1.50$1.50
1M10M100M1B10M tokens

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

Common questions

What is the difference between Claude Sonnet 3.6 (2022-10-22) and Gemini 2.5 Flash Preview 05-20 (thinking)?

Claude Sonnet 3.6 (2022-10-22) is developed by Anthropic while Gemini 2.5 Flash Preview 05-20 (thinking) is developed by Google AI. Claude Sonnet 3.6 (2022-10-22) has a 200K token context window vs Gemini 2.5 Flash Preview 05-20 (thinking)'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 Sonnet 3.6 (2022-10-22) or Gemini 2.5 Flash Preview 05-20 (thinking)?

It depends on your use case. Claude Sonnet 3.6 (2022-10-22) and Gemini 2.5 Flash Preview 05-20 (thinking) 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 Sonnet 3.6 (2022-10-22) cost compared to Gemini 2.5 Flash Preview 05-20 (thinking)?

Claude Sonnet 3.6 (2022-10-22) costs $3/M input tokens and Gemini 2.5 Flash Preview 05-20 (thinking) costs $0.15/M input tokens. Gemini 2.5 Flash Preview 05-20 (thinking) is $2.85/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 Sonnet 3.6 (2022-10-22) and Gemini 2.5 Flash Preview 05-20 (thinking) on Rival?

This page shows a side-by-side comparison of Claude Sonnet 3.6 (2022-10-22) and Gemini 2.5 Flash Preview 05-20 (thinking) 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 Sonnet 3.6 (2022-10-22) vs Ling 3.1 FlashLanded Oct 2026
  • Gemini 2.5 Flash Preview 05-20 (thinking) vs Mistral Large 4Landed Oct 2026
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  • Gemini 2.5 Flash Preview 05-20 (thinking) vs Qwen3.8 Max PrimeLanded Sep 2026
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  • Gemini 2.5 Flash Preview 05-20 (thinking) vs Qwen3.8 Omni FlashLanded Sep 2026

Same lab, same size, long tail

  • Claude Sonnet 3.6 (2022-10-22) vs Claude Sonnet 5.5Version compare
  • Claude Sonnet 3.6 (2022-10-22) vs Claude Opus 5.5Same lab
  • Gemini 2.5 Flash Preview 05-20 (thinking) vs Gemini 3.8 FlashSame lab
  • Gemini 2.5 Flash Preview 05-20 (thinking) vs Gemini 3.7 FlashVersion compare
  • Gemini 2.5 Flash Preview 05-20 (thinking) vs Claude Fable 5.1Cross-provider
  • Claude Sonnet 3.6 (2022-10-22) vs Claude Haiku 4.5Same lab
  • Claude Sonnet 3.6 (2022-10-22) vs Claude Opus 4Version compare
  • Claude Sonnet 3.6 (2022-10-22) vs Claude Opus 4.1Version compare

Model pages

  • Claude Sonnet 3.6 (2022-10-22)59 outputs, specs and price
  • Gemini 2.5 Flash Preview 05-20 (thinking)12 outputs, specs and price
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