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Claude Sonnet 4.6 vs Gemini 3.5 Flash

Both models are evenly matched

Arena ELO

Claude Sonnet 4.6

Cheaper

Gemini 3.5 Flash

Faster

Claude Sonnet 4.6

Detailed Comparison

CategoryClaude Sonnet 4.6Gemini 3.5 Flash
ProviderAnthropic Google
Context Window1M 1M
Input Price ($/1M)$3 $1.5 WIN
Output Price ($/1M)$15 $9 WIN
Arena ELO1440 WINN/A
Coding79.6% SWE-bench N/A
Reasoning72.5% OSWorld N/A
Speed (tokens/sec)~80 t/s WINN/A
Open SourceNo No

Frequently Asked Questions

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

Gemini 3.5 Flash is approximately 42% cheaper than Claude Sonnet 4.6 per million tokens.

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

Claude Sonnet 4.6 scores 79.6% SWE-bench on coding benchmarks, while Gemini 3.5 Flash scores N/A.

Which has a larger context window?

Claude Sonnet 4.6 supports 1M context, while Gemini 3.5 Flash supports 1M.

Is Claude Sonnet 4.6 or Gemini 3.5 Flash open source?

Claude Sonnet 4.6 is proprietary. Gemini 3.5 Flash is proprietary.