Model Comparison

Claude Opus 4.6 vs Gemini 3 ProWhich is better in 2026?

Claude Opus 4.6 has a slight edge in benchmark performance. Gemini 3 Pro is 2.2x cheaper per token.

Verdict: Claude Opus 4.6 vs Gemini 3 Pro — which is better?

Claude Opus 4.6 (by Anthropic) and Gemini 3 Pro (by Google) 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.

Claude Opus 4.6 outperforms in 6 benchmarks (ARC-AGI v2, Humanity's Last Exam, LiveBench, MRCR v2 (8-needle), SWE-Bench Verified, Terminal-Bench 2.0), while Gemini 3 Pro is better at 5 benchmarks (AIME 2025, CharXiv-R, GPQA, MMMLU, MMMU-Pro). Claude Opus 4.6 has a slight edge in benchmark performance.

On price, Gemini 3 Pro is roughly 2.2x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 3 Pro also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Choose Claude Opus 4.6 if…

  • you want the most recent training data — it shipped Feb 2026

Choose Gemini 3 Pro if…

  • cost matters — it's about 2.2x cheaper per token
  • you process long inputs — it offers a 1,048,576 token context window
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Performance Benchmarks

Comparative analysis across standard metrics

12 benchmarks

Claude Opus 4.6 outperforms in 6 benchmarks (ARC-AGI v2, Humanity's Last Exam, LiveBench, MRCR v2 (8-needle), SWE-Bench Verified, Terminal-Bench 2.0), while Gemini 3 Pro is better at 5 benchmarks (AIME 2025, CharXiv-R, GPQA, MMMLU, MMMU-Pro).

Claude Opus 4.6 has a slight edge in benchmark performance.

Fri Jun 19 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 Opus 4.6 ($5.00/1M tokens) is 2.5x more expensive than Gemini 3 Pro ($2.00/1M tokens).

For output processing, Claude Opus 4.6 ($25.00/1M tokens) is 2.1x more expensive than Gemini 3 Pro ($12.00/1M tokens).

In conclusion, Claude Opus 4.6 is more expensive than Gemini 3 Pro.*

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

Lowest available price from all providers
Fri Jun 19 2026 • llm-stats.com
Anthropic
Claude Opus 4.6
Input tokens$5.00
Output tokens$25.00
Best providerAnthropic
Google
Gemini 3 Pro
Input tokens$2.00
Output tokens$12.00
Best providerGoogle
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 3 Pro accepts 1,048,576 input tokens compared to Claude Opus 4.6's 1,000,000 tokens. Claude Opus 4.6 can generate longer responses up to 128,000 tokens, while Gemini 3 Pro is limited to 65,536 tokens.

Anthropic
Claude Opus 4.6
Input1,000,000 tokens
Output128,000 tokens
Google
Gemini 3 Pro
Input1,048,576 tokens
Output65,536 tokens
Fri Jun 19 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Opus 4.6 and Gemini 3 Pro support multimodal inputs.

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

Claude Opus 4.6

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 Opus 4.6

Proprietary

Closed source

Gemini 3 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Opus 4.6 was released on 2026-02-05, while Gemini 3 Pro was released on 2025-11-18.

Claude Opus 4.6 is 3 months newer than Gemini 3 Pro.

Claude Opus 4.6

Feb 5, 2026

4 months ago

2mo newer
Gemini 3 Pro

Nov 18, 2025

7 months ago

Knowledge Cutoff

When training data ends

Gemini 3 Pro has a documented knowledge cutoff of 2025-01-31, while Claude Opus 4.6'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 Opus 4.6's cutoff date.

Claude Opus 4.6

—

Gemini 3 Pro

Jan 2025

Provider Availability

Claude Opus 4.6 is available from Anthropic. Gemini 3 Pro is available from Google.

Claude Opus 4.6

anthropic logo
Anthropic
Input Price:Input: $5.00/1MOutput Price:Output: $25.00/1M

Gemini 3 Pro

google logo
Google
Input Price:Input: $2.00/1MOutput Price:Output: $12.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Anthropic
Higher ARC-AGI v2 score (68.8% vs 31.1%)
Higher Humanity's Last Exam score (53.1% vs 45.8%)
Higher LiveBench score (76.3% vs 73.4%)
Higher MRCR v2 (8-needle) score (76.0% vs 26.3%)
Higher SWE-Bench Verified score (80.8% vs 76.2%)
Higher Terminal-Bench 2.0 score (65.4% vs 54.2%)
Google
Larger context window (1,048,576 tokens)
Less expensive input tokens
Less expensive output tokens
Higher AIME 2025 score (100.0% vs 99.8%)
Higher CharXiv-R score (81.4% vs 77.4%)
Higher GPQA score (91.9% vs 91.3%)
Higher MMMLU score (91.8% vs 91.1%)
Higher MMMU-Pro score (81.0% vs 77.3%)

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude Opus 4.6
Google
Gemini 3 Pro

FAQ

Common questions about Claude Opus 4.6 vs Gemini 3 Pro.

Which is better, Claude Opus 4.6 or Gemini 3 Pro?

Claude Opus 4.6 has a slight edge in benchmark performance. Claude Opus 4.6 is made by Anthropic and Gemini 3 Pro is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude Opus 4.6 compare to Gemini 3 Pro in benchmarks?

Claude Opus 4.6 scores Vending-Bench 2: 100.0%, AIME 2025: 99.8%, Tau2 Telecom: 99.3%, Graphwalks parents >128k: 95.4%, Tau2 Retail: 91.9%. Gemini 3 Pro scores AIME 2025: 100.0%, Vending-Bench 2: 100.0%, Global PIQA: 93.4%, GPQA: 91.9%, MMMLU: 91.8%.

Is Claude Opus 4.6 cheaper than Gemini 3 Pro?

Gemini 3 Pro is 2.5x cheaper for input tokens. Claude Opus 4.6 costs $5.00/M input and $25.00/M output via anthropic. Gemini 3 Pro costs $2.00/M input and $12.00/M output via google.

What are the context window sizes for Claude Opus 4.6 and Gemini 3 Pro?

Claude Opus 4.6 supports 1.0M tokens and Gemini 3 Pro supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Opus 4.6 and Gemini 3 Pro?

Key differences include context window (1.0M vs 1.0M), input pricing ($5.00 vs $2.00/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Opus 4.6 and Gemini 3 Pro?

Claude Opus 4.6 is developed by Anthropic and Gemini 3 Pro is developed by Google.

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