Claude Sonnet 4 vs Gemini 3 Pro Comparison

Comparing Claude Sonnet 4 and Gemini 3 Pro across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

Claude Sonnet 4 outperforms in 0 benchmarks, while Gemini 3 Pro is better at 4 benchmarks (AIME 2025, GPQA, MMMLU, SWE-Bench Verified).

Gemini 3 Pro significantly outperforms across most benchmarks.

Sat Mar 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 3 Pro costs less

For input processing, Claude Sonnet 4 ($3.00/1M tokens) is 1.5x more expensive than Gemini 3 Pro ($2.00/1M tokens).

For output processing, Claude Sonnet 4 ($15.00/1M tokens) is 1.3x more expensive than Gemini 3 Pro ($12.00/1M tokens).

In conclusion, Claude Sonnet 4 is more expensive than Gemini 3 Pro.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers

Sat Mar 14 2026 • llm-stats.com

Claude Sonnet 4

Input tokens$3.00

Output tokens$15.00

Best providerAnthropic

Gemini 3 Pro

Input tokens$2.00

Output tokens$12.00

Best providerGoogle

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Context Window

Maximum input and output token capacity

Gemini 3 Pro accepts 1,048,576 input tokens compared to Claude Sonnet 4's 200,000 tokens. Gemini 3 Pro can generate longer responses up to 65,536 tokens, while Claude Sonnet 4 is limited to 64,000 tokens.

Claude Sonnet 4

Input200,000 tokens

Output64,000 tokens

Gemini 3 Pro

Input1,048,576 tokens

Output65,536 tokens

Sat Mar 14 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Sonnet 4 and Gemini 3 Pro support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude Sonnet 4

Text

Images

Audio

Video

Gemini 3 Pro

Text

Images

Audio

Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Claude Sonnet 4

Proprietary

Closed source

Gemini 3 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Sonnet 4 was released on 2025-05-22, while Gemini 3 Pro was released on 2025-11-18.

Gemini 3 Pro is 6 months newer than Claude Sonnet 4.

Claude Sonnet 4

May 22, 2025

9 months ago

Gemini 3 Pro

Nov 18, 2025

3 months ago

6mo newer

Knowledge Cutoff

When training data ends

Gemini 3 Pro has a documented knowledge cutoff of 2025-01-31, while Claude Sonnet 4's cutoff date is not specified.

We can confirm Gemini 3 Pro's training data extends to 2025-01-31, but cannot make a direct comparison without Claude Sonnet 4's cutoff date.

Claude Sonnet 4

—

Gemini 3 Pro

Jan 2025

Provider Availability

Claude Sonnet 4 is available from Anthropic, Bedrock, Google. Gemini 3 Pro is available from Google. The availability of providers can affect quality of the model and reliability.