Model Comparison

Gemini 3.1 Pro vs Claude 3 SonnetWhich is better in 2026?

Gemini 3.1 Pro significantly outperforms across most benchmarks. Gemini 3.1 Pro is 1.1x cheaper per token.

Verdict: Gemini 3.1 Pro vs Claude 3 Sonnet — which is better?

Gemini 3.1 Pro (by Google) and Claude 3 Sonnet (by Anthropic) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Gemini 3.1 Pro outperforms in 1 benchmarks (GPQA), while Claude 3 Sonnet is better at 0 benchmarks. Gemini 3.1 Pro significantly outperforms across most benchmarks.

On price, Gemini 3.1 Pro is roughly 1.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 3.1 Pro also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Choose Gemini 3.1 Pro if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • cost matters — it's about 1.1x cheaper per token
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Feb 2026

Choose Claude 3 Sonnet if…

  • you want predictable pricing at $3.00/M input and $15.00/M output
Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Gemini 3.1 Pro outperforms in 1 benchmarks (GPQA), while Claude 3 Sonnet is better at 0 benchmarks.

Gemini 3.1 Pro significantly outperforms across most benchmarks.

Sat Jun 06 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 1.2x cheaper than Claude 3 Sonnet ($3.00/1M tokens).

For output processing, Gemini 3.1 Pro ($15.00/1M tokens) costs the same as Claude 3 Sonnet ($15.00/1M tokens).

In conclusion, Claude 3 Sonnet is more expensive than Gemini 3.1 Pro.*

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

Lowest available price from all providers
Sat Jun 06 2026 • llm-stats.com
Google
Gemini 3.1 Pro
Input tokens$2.50
Output tokens$15.00
Best providerGoogle
Anthropic
Claude 3 Sonnet
Input tokens$3.00
Output tokens$15.00
Best providerAnthropic
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 3.1 Pro accepts 1,048,576 input tokens compared to Claude 3 Sonnet's 200,000 tokens. Claude 3 Sonnet can generate longer responses up to 200,000 tokens, while Gemini 3.1 Pro is limited to 65,536 tokens.

Google
Gemini 3.1 Pro
Input1,048,576 tokens
Output65,536 tokens
Anthropic
Claude 3 Sonnet
Input200,000 tokens
Output200,000 tokens
Sat Jun 06 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 3.1 Pro and Claude 3 Sonnet 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 3 Sonnet

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 3 Sonnet

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3.1 Pro was released on 2026-02-19, while Claude 3 Sonnet was released on 2024-02-29.

Gemini 3.1 Pro is 24 months newer than Claude 3 Sonnet.

Gemini 3.1 Pro

Feb 19, 2026

3 months ago

2.0yr newer
Claude 3 Sonnet

Feb 29, 2024

2.3 years ago

Knowledge Cutoff

When training data ends

Gemini 3.1 Pro has a documented knowledge cutoff of 2025-01-31, while Claude 3 Sonnet'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 3 Sonnet's cutoff date.

Gemini 3.1 Pro

Jan 2025

Claude 3 Sonnet

—

Provider Availability

Gemini 3.1 Pro is available from Google. Claude 3 Sonnet is available from Anthropic, Bedrock, Google.

Gemini 3.1 Pro

google logo
Google
Input Price:Input: $2.50/1MOutput Price:Output: $15.00/1M

Claude 3 Sonnet

anthropic logo
Anthropic
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M
bedrock logo
AWS Bedrock
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M
google logo
Google
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Google
Larger context window (1,048,576 tokens)
Less expensive input tokens
Higher GPQA score (94.3% vs 40.4%)
Anthropic

No standout differentiators in the data we have for this pair.

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemini 3.1 Pro
Anthropic
Claude 3 Sonnet

FAQ

Common questions about Gemini 3.1 Pro vs Claude 3 Sonnet.

Which is better, Gemini 3.1 Pro or Claude 3 Sonnet?

Gemini 3.1 Pro significantly outperforms across most benchmarks. Gemini 3.1 Pro is made by Google and Claude 3 Sonnet is made by Anthropic. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemini 3.1 Pro compare to Claude 3 Sonnet in benchmarks?

Gemini 3.1 Pro scores t2-bench: 99.3%, LiveCodeBench Pro: 96.2%, GPQA: 94.3%, MMMLU: 92.6%, BrowseComp: 85.9%. Claude 3 Sonnet scores ARC-C: 93.2%, GSM8k: 92.3%, HellaSwag: 89.0%, MGSM: 83.5%, BIG-Bench Hard: 82.9%.

Is Gemini 3.1 Pro cheaper than Claude 3 Sonnet?

Gemini 3.1 Pro is 1.2x cheaper for input tokens. Gemini 3.1 Pro costs $2.50/M input and $15.00/M output via google. Claude 3 Sonnet costs $3.00/M input and $15.00/M output via anthropic.

What are the context window sizes for Gemini 3.1 Pro and Claude 3 Sonnet?

Gemini 3.1 Pro supports 1.0M tokens and Claude 3 Sonnet supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 3.1 Pro and Claude 3 Sonnet?

Key differences include context window (1.0M vs 200K), input pricing ($2.50 vs $3.00/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.1 Pro and Claude 3 Sonnet?

Gemini 3.1 Pro is developed by Google and Claude 3 Sonnet is developed by Anthropic.

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