Gemini 3 Flash vs Gemini 3 Pro
Gemini 3 Flash and Gemini 3 Pro are closely matched at 36.4 and 38.1 on the LLM Stats Score. Gemini 3 Flash is 4.0x cheaper per token.
Google · Google · Updated for 2026
Which is better?
Gemini 3 Flash and Gemini 3 Pro are closely matched on the overall LLM Stats Score at 36.4 and 38.1.
In the 20 individual benchmarks reported for both models, Gemini 3 Pro wins 15; this is a narrower head-to-head signal than the composite indexes.
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.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Gemini 3 Flash
- cost matters — it's about 4.0x cheaper per token
- you want the most recent training data — it shipped Dec 2025
Choose Gemini 3 Pro
- you value its reported benchmark strengths — it wins 15 of 20 exact shared results
- you process long inputs — it offers a 1,048,576 token context window
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
24 reported for Gemini 3 Flash · 21 for Gemini 3 Pro
Gemini 3 Flash outperforms in 5 benchmarks (ARC-AGI v2, MMMU-Pro, OmniDocBench 1.5, SWE-Bench Verified, t2-bench), while Gemini 3 Pro is better at 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).
Gemini 3 Pro shows notably better performance in the majority of benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Gemini 3 Flash ($0.50/1M tokens) is 4.0x cheaper than Gemini 3 Pro ($2.00/1M tokens).
For output processing, Gemini 3 Flash ($3.00/1M tokens) is 4.0x cheaper than Gemini 3 Pro ($12.00/1M tokens).
In conclusion, Gemini 3 Pro is more expensive than Gemini 3 Flash.*
* Using a 3:1 ratio of input to output tokens
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.
Input capabilities
Documented input modalities across available providers
Both Gemini 3 Flash and Gemini 3 Pro support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Gemini 3 Flash
Gemini 3 Pro
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Gemini 3 Flash was released on 2025-12-17, while Gemini 3 Pro was released on 2025-11-18.
Gemini 3 Flash is 1 month newer than Gemini 3 Pro.
Dec 17, 2025
10 months ago
4w newerNov 18, 2025
11 months ago
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.
Jan 2025
Jan 2025
Provider Availability
Gemini 3 Flash is available from Google. Gemini 3 Pro is available from Google.
Gemini 3 Flash
Gemini 3 Pro
Outputs Comparison
Judge for yourself.
Run your own prompts against Gemini 3 Flash and Gemini 3 Pro side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemini 3 Flash vs Gemini 3 Pro.