What is the difference between Claude Sonnet 4.6 and Gemini 3.5 Flash?

Claude Sonnet 4.6 is developed by Anthropic while Gemini 3.5 Flash is developed by Google AI. Claude Sonnet 4.6 has a 1.0M token context window vs Gemini 3.5 Flash's 1.0M. in 4 community votes on Rival, Gemini 3.5 Flash wins 100% of head-to-head matchups. These results are based on blind head-to-head voting across 53 challenges.

Which is better, Claude Sonnet 4.6 or Gemini 3.5 Flash?

Based on 4 community votes on Rival, Gemini 3.5 Flash wins 100% of head-to-head matchups against Claude Sonnet 4.6. Gemini 3.5 Flash is strongest in Reasoning.

How much does Claude Sonnet 4.6 cost compared to Gemini 3.5 Flash?

Claude Sonnet 4.6 costs $3/M input tokens and Gemini 3.5 Flash costs $1.5/M input tokens. Gemini 3.5 Flash is $1.50/M cheaper per input. Gemini 3.5 Flash also wins more often in community votes, making it the better value.

How are Claude Sonnet 4.6 vs Gemini 3.5 Flash votes collected on Rival?

Rival presents both models' outputs side-by-side in blind duels. Voters see the responses but don't know which model produced each one, eliminating brand bias. 4 votes have been collected for this pair across 53 challenges. All vote data is part of Rival's open dataset.

What is the difference between Claude Sonnet 4.6 and Gemini 3.5 Flash?

Claude Sonnet 4.6 is developed by Anthropic while Gemini 3.5 Flash is developed by Google AI. Claude Sonnet 4.6 has a 1.0M token context window vs Gemini 3.5 Flash's 1.0M. in 4 community votes on Rival, Gemini 3.5 Flash wins 100% of head-to-head matchups. These results are based on blind head-to-head voting across 53 challenges.

Which is better, Claude Sonnet 4.6 or Gemini 3.5 Flash?

Based on 4 community votes on Rival, Gemini 3.5 Flash wins 100% of head-to-head matchups against Claude Sonnet 4.6. Gemini 3.5 Flash is strongest in Reasoning.

How much does Claude Sonnet 4.6 cost compared to Gemini 3.5 Flash?

Claude Sonnet 4.6 costs $3/M input tokens and Gemini 3.5 Flash costs $1.5/M input tokens. Gemini 3.5 Flash is $1.50/M cheaper per input. Gemini 3.5 Flash also wins more often in community votes, making it the better value.

How are Claude Sonnet 4.6 vs Gemini 3.5 Flash votes collected on Rival?

Rival presents both models' outputs side-by-side in blind duels. Voters see the responses but don't know which model produced each one, eliminating brand bias. 4 votes have been collected for this pair across 53 challenges. All vote data is part of Rival's open dataset.

Claude Sonnet 4.6 vs Gemini 3.5 Flash: Which Is Better?

Updated May 2026

Our Verdict

Gemini 3.5 FlashWinner

Claude Sonnet 4.6Runner-up

Pick Gemini 3.5 Flash. In 4 blind votes, Gemini 3.5 Flash wins 100% of the time. That's not luck.

Gemini 3.5 Flash particularly excels in Reasoning.

Clear winner

API pricing

Cost per 1M tokens

Claude Sonnet 4.6

Input

$3.00

Output

$15.00

Gemini 3.5 Flash

Input

$1.50

2.0× cheaper

Output

$9.00

1.7× cheaper

Gemini 3.5 Flash is cheaper on both — 2.0× input, 1.7× output

Writing DNA

Style Comparison

Similarity

56%

Claude Sonnet 4.6 uses 19.1x more emoji

Claude Sonnet 4.6

Gemini 3.5 Flash

56%Vocabulary59%

36wSentence Length18w

0.53Hedging0.16

5.1Bold4.4

3.4Lists3.0

0.19Emoji0.00

2.10Headings0.89

0.02Transitions0.11

Based on 23 + 27 text responses

Research

What we learned reading every model

Claude Sonnet 4.6 and Gemini 3.5 Flash have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

Claude Sonnet 4.6 vs MiniMax M3New provider

Claude Sonnet 4.6 vs GPT-5New provider

Claude Sonnet 4.6 vs Llama 4 MaverickNew provider

Updated May 2026

Our Verdict

Gemini 3.5 FlashWinner

Claude Sonnet 4.6Runner-up

Pick Gemini 3.5 Flash. In 4 blind votes, Gemini 3.5 Flash wins 100% of the time. That's not luck.

Gemini 3.5 Flash particularly excels in Reasoning.

Clear winner

API pricing

Cost per 1M tokens

Claude Sonnet 4.6

Input

$3.00

Output

$15.00

Gemini 3.5 Flash

Input

$1.50

2.0× cheaper

Output

$9.00

1.7× cheaper

Gemini 3.5 Flash is cheaper on both — 2.0× input, 1.7× output

Writing DNA

Style Comparison

Similarity

56%

Claude Sonnet 4.6 uses 19.1x more emoji

Claude Sonnet 4.6

Gemini 3.5 Flash

56%Vocabulary59%

36wSentence Length18w

0.53Hedging0.16

5.1Bold4.4

3.4Lists3.0

0.19Emoji0.00

2.10Headings0.89

0.02Transitions0.11

Based on 23 + 27 text responses

Research

What we learned reading every model

Claude Sonnet 4.6 and Gemini 3.5 Flash have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

Claude Sonnet 4.6 vs MiniMax M3New provider

Claude Sonnet 4.6 vs GPT-5New provider

Claude Sonnet 4.6 vs Llama 4 MaverickNew provider