Model Comparison

Gemini 2.5 Flash-Lite vs Gemini 3 ProWhich is better in 2026?

Gemini 3 Pro significantly outperforms across most benchmarks. Gemini 2.5 Flash-Lite is 25.7x cheaper per token.

Verdict: Gemini 2.5 Flash-Lite vs Gemini 3 Pro — which is better?

Gemini 2.5 Flash-Lite (by Google) 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.

Gemini 2.5 Flash-Lite outperforms in 1 benchmarks (FACTS Grounding), while Gemini 3 Pro is better at 5 benchmarks (AIME 2025, GPQA, Humanity's Last Exam, SimpleQA, SWE-Bench Verified). Gemini 3 Pro significantly outperforms across most benchmarks.

On price, Gemini 2.5 Flash-Lite is roughly 25.7x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Choose Gemini 2.5 Flash-Lite if…

  • cost matters — it's about 25.7x cheaper per token
  • you need open weights you can self-host or fine-tune

Choose Gemini 3 Pro if…

  • you want the strongest raw capability — it leads on 5 of 6 shared benchmarks
  • you want the most recent training data — it shipped Nov 2025

Performance Benchmarks

Comparative analysis across standard metrics

6 benchmarks

Gemini 2.5 Flash-Lite outperforms in 1 benchmarks (FACTS Grounding), while Gemini 3 Pro is better at 5 benchmarks (AIME 2025, GPQA, Humanity's Last Exam, SimpleQA, SWE-Bench Verified).

Gemini 3 Pro significantly outperforms across most benchmarks.

Sat Jul 18 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 2.5 Flash-Lite costs less

For input processing, Gemini 2.5 Flash-Lite ($0.10/1M tokens) is 20.0x cheaper than Gemini 3 Pro ($2.00/1M tokens).

For output processing, Gemini 2.5 Flash-Lite ($0.40/1M tokens) is 30.0x cheaper than Gemini 3 Pro ($12.00/1M tokens).

In conclusion, Gemini 3 Pro is more expensive than Gemini 2.5 Flash-Lite.*

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

Lowest available price from all providers
Sat Jul 18 2026 • llm-stats.com
Google
Gemini 2.5 Flash-Lite
Input tokens$0.10
Output tokens$0.40
Best providerGoogle
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

Both models have the same input context window of 1,048,576 tokens. Both models can generate responses up to 65,536 tokens.

Google
Gemini 2.5 Flash-Lite
Input1,048,576 tokens
Output65,536 tokens
Google
Gemini 3 Pro
Input1,048,576 tokens
Output65,536 tokens
Sat Jul 18 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 2.5 Flash-Lite and Gemini 3 Pro support multimodal inputs.

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

Gemini 2.5 Flash-Lite

Text
Images
Audio
Video

Gemini 3 Pro

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini 2.5 Flash-Lite is licensed under Creative Commons Attribution 4.0 License, while Gemini 3 Pro uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

Gemini 2.5 Flash-Lite

Creative Commons Attribution 4.0 License

Open weights

Gemini 3 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 2.5 Flash-Lite was released on 2025-06-17, while Gemini 3 Pro was released on 2025-11-18.

Gemini 3 Pro is 5 months newer than Gemini 2.5 Flash-Lite.

Gemini 2.5 Flash-Lite

Jun 17, 2025

1.1 years ago

Gemini 3 Pro

Nov 18, 2025

8 months ago

5mo newer

Knowledge Cutoff

When training data ends

Gemini 2.5 Flash-Lite has a knowledge cutoff of 2025-01-01, while Gemini 3 Pro has a cutoff of 2025-01-31.

Gemini 3 Pro has more recent training data (up to 2025-01-31), making it potentially better informed about events through that date compared to Gemini 2.5 Flash-Lite (2025-01-01).

Gemini 2.5 Flash-Lite

Jan 2025

Gemini 3 Pro

Jan 2025

Provider Availability

Gemini 2.5 Flash-Lite is available from Google. Gemini 3 Pro is available from Google.

Gemini 2.5 Flash-Lite

google logo
Google
Input Price:Input: $0.10/1MOutput Price:Output: $0.40/1M

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

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Google
Less expensive input tokens
Less expensive output tokens
Has open weights
Higher FACTS Grounding score (84.1% vs 70.5%)
Google
Higher AIME 2025 score (100.0% vs 49.8%)
Higher GPQA score (91.9% vs 64.6%)
Higher Humanity's Last Exam score (45.8% vs 5.1%)
Higher SimpleQA score (72.1% vs 10.7%)
Higher SWE-Bench Verified score (76.2% vs 31.6%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Gemini 2.5 Flash-Lite and Gemini 3 Pro side-by-side, then vote on the output you prefer.

Gemini 2.5 Flash-Lite
✓ Preferred
Gemini 3 Pro
Open in Playground
AI Model Comparison Table
Feature
Google
Gemini 2.5 Flash-Lite
Google
Gemini 3 Pro

FAQ

Common questions about Gemini 2.5 Flash-Lite vs Gemini 3 Pro.

Which is better, Gemini 2.5 Flash-Lite or Gemini 3 Pro?

Gemini 3 Pro significantly outperforms across most benchmarks. Gemini 2.5 Flash-Lite is made by Google 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 Gemini 2.5 Flash-Lite compare to Gemini 3 Pro in benchmarks?

Gemini 2.5 Flash-Lite scores FACTS Grounding: 84.1%, Global-MMLU-Lite: 81.1%, MMMU: 72.9%, GPQA: 64.6%, Vibe-Eval: 51.3%. Gemini 3 Pro scores AIME 2025: 100.0%, Vending-Bench 2: 100.0%, Global PIQA: 93.4%, GPQA: 91.9%, MMMLU: 91.8%.

Is Gemini 2.5 Flash-Lite cheaper than Gemini 3 Pro?

Gemini 2.5 Flash-Lite is 20.0x cheaper for input tokens. Gemini 2.5 Flash-Lite costs $0.10/M input and $0.40/M output via google. Gemini 3 Pro costs $2.00/M input and $12.00/M output via google.

What are the context window sizes for Gemini 2.5 Flash-Lite and Gemini 3 Pro?

Gemini 2.5 Flash-Lite 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 Gemini 2.5 Flash-Lite and Gemini 3 Pro?

Key differences include input pricing ($0.10 vs $2.00/M), licensing (Creative Commons Attribution 4.0 License vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

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