Gemini 3 Pro vs Gemini 3 Flash Comparison

Comparing Gemini 3 Pro and Gemini 3 Flash across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

19 benchmarks

Gemini 3 Pro outperforms in 12 benchmarks (AIME 2025, CharXiv-R, FACTS Grounding, Global PIQA, GPQA, Humanity's Last Exam, LiveCodeBench Pro, MRCR v2 (8-needle), ScreenSpot Pro, SimpleQA, Terminal-Bench 2.0, VideoMMMU), while Gemini 3 Flash is better at 5 benchmarks (ARC-AGI v2, MMMU-Pro, OmniDocBench 1.5, SWE-Bench Verified, t2-bench).

Gemini 3 Pro shows notably better performance in the majority of benchmarks.

Tue Mar 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 3 Flash costs less

For input processing, Gemini 3 Pro ($2.00/1M tokens) is 4.0x more expensive than Gemini 3 Flash ($0.50/1M tokens).

For output processing, Gemini 3 Pro ($12.00/1M tokens) is 4.0x more expensive than Gemini 3 Flash ($3.00/1M tokens).

In conclusion, Gemini 3 Pro is more expensive than Gemini 3 Flash.*

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

Lowest available price from all providers
Tue Mar 17 2026 • llm-stats.com
Google
Gemini 3 Pro
Input tokens$2.00
Output tokens$12.00
Best providerGoogle
Google
Gemini 3 Flash
Input tokens$0.50
Output tokens$3.00
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 Gemini 3 Flash's 1,000,000 tokens. Both models can generate responses up to 65,536 tokens.

Google
Gemini 3 Pro
Input1,048,576 tokens
Output65,536 tokens
Google
Gemini 3 Flash
Input1,000,000 tokens
Output65,536 tokens
Tue Mar 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 3 Pro and Gemini 3 Flash support multimodal inputs.

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

Gemini 3 Pro

Text
Images
Audio
Video

Gemini 3 Flash

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 Pro

Proprietary

Closed source

Gemini 3 Flash

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3 Pro was released on 2025-11-18, while Gemini 3 Flash was released on 2025-12-17.

Gemini 3 Flash is 1 month newer than Gemini 3 Pro.

Gemini 3 Pro

Nov 18, 2025

3 months ago

Gemini 3 Flash

Dec 17, 2025

3 months ago

4w newer

Knowledge Cutoff

When training data ends

Both models have the same knowledge cutoff date of 2025-01-31.

They should have similar awareness of historical events and information up to this date.

Gemini 3 Pro

Jan 2025

Gemini 3 Flash

Jan 2025

Provider Availability

Gemini 3 Pro is available from Google. Gemini 3 Flash is available from Google. The availability of providers can affect quality of the model and reliability.

Gemini 3 Pro

google logo
Google
Input Price:Input: $2.00/1MOutput Price:Output: $12.00/1M

Gemini 3 Flash

google logo
Google
Input Price:Input: $0.50/1MOutput Price:Output: $3.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Google
Larger context window (1,048,576 tokens)
Higher AIME 2025 score (100.0% vs 99.7%)
Higher CharXiv-R score (81.4% vs 80.3%)
Higher FACTS Grounding score (70.5% vs 61.9%)
Higher Global PIQA score (93.4% vs 92.8%)
Higher GPQA score (91.9% vs 90.4%)
Higher Humanity's Last Exam score (45.8% vs 43.5%)
Higher LiveCodeBench Pro score (81.3% vs 77.2%)
Higher MRCR v2 (8-needle) score (26.3% vs 22.1%)
Higher ScreenSpot Pro score (72.7% vs 69.1%)
Higher SimpleQA score (72.1% vs 68.7%)
Higher Terminal-Bench 2.0 score (54.2% vs 47.6%)
Higher VideoMMMU score (87.6% vs 86.9%)
Google
Less expensive input tokens
Less expensive output tokens
Higher ARC-AGI v2 score (33.6% vs 31.1%)
Higher MMMU-Pro score (81.2% vs 81.0%)
Higher OmniDocBench 1.5 score (12.1% vs 11.5%)
Higher SWE-Bench Verified score (78.0% vs 76.2%)
Higher t2-bench score (90.2% vs 85.4%)

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemini 3 Pro
Google
Gemini 3 Flash