Model Comparison

Gemini 3 Pro vs Gemini 3 FlashWhich is better in 2026?

Gemini 3 Pro shows notably better performance in the majority of benchmarks. Gemini 3 Flash is 4.0x cheaper per token.

Verdict: Gemini 3 Pro vs Gemini 3 Flash — which is better?

Gemini 3 Pro (by Google) and Gemini 3 Flash (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.

Gemini 3 Pro outperforms in 13 benchmarks (AIME 2025, CharXiv-R, FACTS Grounding, Global PIQA, GPQA, Humanity's Last Exam, LiveBench, 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.

On price, Gemini 3 Flash is roughly 4.0x 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 Gemini 3 Pro if…

  • you want the strongest raw capability — it leads on 13 of 20 shared benchmarks
  • you process long inputs — it offers a 1,048,576 token context window

Choose Gemini 3 Flash if…

  • cost matters — it's about 4.0x cheaper per token
  • you want the most recent training data — it shipped Dec 2025
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Performance Benchmarks

Comparative analysis across standard metrics

20 benchmarks

Gemini 3 Pro outperforms in 13 benchmarks (AIME 2025, CharXiv-R, FACTS Grounding, Global PIQA, GPQA, Humanity's Last Exam, LiveBench, 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.

Wed Jun 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
Wed Jun 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
Wed Jun 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

7 months ago

Gemini 3 Flash

Dec 17, 2025

6 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.

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 LiveBench score (73.4% vs 72.4%)
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

FAQ

Common questions about Gemini 3 Pro vs Gemini 3 Flash.

Which is better, Gemini 3 Pro or Gemini 3 Flash?

Gemini 3 Pro shows notably better performance in the majority of benchmarks. Gemini 3 Pro is made by Google and Gemini 3 Flash is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemini 3 Pro compare to Gemini 3 Flash in benchmarks?

Gemini 3 Pro scores AIME 2025: 100.0%, Vending-Bench 2: 100.0%, Global PIQA: 93.4%, GPQA: 91.9%, MMMLU: 91.8%. Gemini 3 Flash scores Vending-Bench 2: 100.0%, AIME 2025: 99.7%, Global PIQA: 92.8%, MMMLU: 91.8%, GPQA: 90.4%.

Is Gemini 3 Pro cheaper than Gemini 3 Flash?

Gemini 3 Flash is 4.0x cheaper for input tokens. Gemini 3 Pro costs $2.00/M input and $12.00/M output via google. Gemini 3 Flash costs $0.50/M input and $3.00/M output via google.

What are the context window sizes for Gemini 3 Pro and Gemini 3 Flash?

Gemini 3 Pro supports 1.0M tokens and Gemini 3 Flash 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 Gemini 3 Pro and Gemini 3 Flash?

Key differences include context window (1.0M vs 1.0M), input pricing ($2.00 vs $0.50/M). See the full comparison above for benchmark-by-benchmark results.

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