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Claude Sonnet 4.6 vs Gemini 3.5 Flash

Compare Claude Sonnet 4.6 and Gemini 3.5 Flash by pricing, context window, modalities, reasoning support, tool calling, and release details, knowledge cutoff and more.

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Claude Sonnet 4.6
Gemini 3.5 Flash
Name
Claude Sonnet 4.6
Gemini 3.5 Flash
Provider
Anthropic
Google
Family
claude-sonnet
gemini-flash
Model ID
claude-sonnet-4-6
gemini-3.5-flash
Status
—
—
Released
Feb 17, 2026
May 19, 2026
Last updated
Mar 13, 2026
May 19, 2026
Context
1,000,000
1,048,576
Input limit
—
—
Output limit
128,000
65,536
Input types
text, image, pdf
text, image, video, audio, pdf
Output types
text
text
Reasoning
Yes
Yes
Tool call
Yes
Yes
Structured output
supported
supported
Temperature
supported
supported
Attachment
Yes
Yes
Open weights
No
No
Knowledge
Knowledge cutoff date
2025-08-31
2025-01
Cache read
$0.30
$0.15
Cache write
$3.75
—
Input
$3.00
$1.50
Input audio
—
$1.50
Output
$15.00
$9.00
Output audio
—
—
200k+ cache read
—
—
200k+ cache write
—
—
200k+ input
—
—
200k+ output
—
—
Reasoning cost
—
—
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