Gemini 3.1 Pro vs Claude Opus 4 Comparison

Comparing Gemini 3.1 Pro and Claude Opus 4 across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

Gemini 3.1 Pro outperforms in 4 benchmarks (ARC-AGI v2, GPQA, MMMLU, SWE-Bench Verified), while Claude Opus 4 is better at 0 benchmarks.

Gemini 3.1 Pro significantly outperforms across most benchmarks.

Tue Mar 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 3.1 Pro costs less

For input processing, Gemini 3.1 Pro ($2.50/1M tokens) is 6.0x cheaper than Claude Opus 4 ($15.00/1M tokens).

For output processing, Gemini 3.1 Pro ($15.00/1M tokens) is 5.0x cheaper than Claude Opus 4 ($75.00/1M tokens).

In conclusion, Claude Opus 4 is more expensive than Gemini 3.1 Pro.*

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

Lowest available price from all providers

Tue Mar 17 2026 • llm-stats.com

Gemini 3.1 Pro

Input tokens$2.50

Output tokens$15.00

Best providerGoogle

Claude Opus 4

Input tokens$15.00

Output tokens$75.00

Best providerAnthropic

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Context Window

Maximum input and output token capacity

Gemini 3.1 Pro accepts 1,048,576 input tokens compared to Claude Opus 4's 200,000 tokens. Gemini 3.1 Pro can generate longer responses up to 65,536 tokens, while Claude Opus 4 is limited to 32,000 tokens.

Gemini 3.1 Pro

Input1,048,576 tokens

Output65,536 tokens

Claude Opus 4

Input200,000 tokens

Output32,000 tokens

Tue Mar 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 3.1 Pro and Claude Opus 4 support multimodal inputs.

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

Gemini 3.1 Pro

Text

Images

Audio

Video

Claude Opus 4

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.

Gemini 3.1 Pro

Proprietary

Closed source

Claude Opus 4

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3.1 Pro was released on 2026-02-19, while Claude Opus 4 was released on 2025-05-22.

Gemini 3.1 Pro is 9 months newer than Claude Opus 4.

Gemini 3.1 Pro

Feb 19, 2026

3 weeks ago

9mo newer

Claude Opus 4

May 22, 2025

9 months ago

Knowledge Cutoff

When training data ends

Gemini 3.1 Pro has a documented knowledge cutoff of 2025-01-31, while Claude Opus 4's cutoff date is not specified.

We can confirm Gemini 3.1 Pro's training data extends to 2025-01-31, but cannot make a direct comparison without Claude Opus 4's cutoff date.

Gemini 3.1 Pro

Jan 2025

Claude Opus 4

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Provider Availability

Gemini 3.1 Pro is available from Google. Claude Opus 4 is available from Anthropic, Bedrock, Google. The availability of providers can affect quality of the model and reliability.