AI model comparison
Compare recorded price, context, output limits, speed, latency, capabilities, and input/output support. Every missing value stays visible, and unsourced benchmarks are excluded.
Gemini 3.5 Flash Lite and Gemini 3 Pro Preview both come up when teams are choosing a model for production work, and the honest answer usually depends on your workload rather than a leaderboard. This page puts their published specifications side by side — context window, token pricing, supported inputs and outputs — so you can see where they actually differ.
Google's low-cost Gemini 3 model with a 1,048,576-token context window, vision support, and $0.30/$2.50 per million token pricing for volume workloads.
Accepts
Produces
Preview Gemini flagship for complex reasoning, coding, and rich multimodal prompts
Accepts
Produces
At a glance
This is a directional summary of the values recorded in this directory—not a universal quality verdict. Test the finalists on your own prompts before committing.
Where Gemini 3.5 Flash Lite leads in recorded data
Where Gemini 3 Pro Preview leads in recorded data
No complete recorded factor currently favors this model. That does not establish lower real-world quality.
Context capacity
Higher listed limit
Gemini 3.5 Flash Lite:1.0M
Gemini 3 Pro Preview:1.0M
Same recorded value
Maximum output
Higher listed limit
Gemini 3.5 Flash Lite:65.5K
Gemini 3 Pro Preview:65.5K
Same recorded value
Input price
Lower recorded price
Gemini 3.5 Flash Lite:$0.30
Gemini 3 Pro Preview:$2.00
Gemini 3.5 Flash Lite
Output price
Lower recorded price
Gemini 3.5 Flash Lite:$2.50
Gemini 3 Pro Preview:$12.00
Gemini 3.5 Flash Lite
Output speed
Higher recorded throughput
Gemini 3.5 Flash Lite:—
Gemini 3 Pro Preview:—
No complete comparison
Time to first token
Lower recorded latency
Gemini 3.5 Flash Lite:—
Gemini 3 Pro Preview:—
No complete comparison
Intelligence Index
Higher directory index
Gemini 3.5 Flash Lite:—
Gemini 3 Pro Preview:—
No complete comparison
Evidence
A score appears only when both records include a verified source. It is not treated as a universal ranking.
Specifications
| Specification | Gemini 3.5 Flash Lite | Gemini 3 Pro Preview |
|---|---|---|
| Provider | ||
| Model family | gemini-flash-lite | gemini-pro |
| Accepted inputs | text, image, video, audio, pdf | text, image, video, audio, pdf |
| Produced outputs | text | text |
| Context window | 1.0M | 1.0M |
| Max output | 65.5K | 65.5K |
| Intelligence Index | — | — |
| Input price / 1M | $0.30Recorded lead | $2.00 |
| Output price / 1M | $2.50Recorded lead | $12.00 |
| Output speed | — | — |
| Time to first token | — | — |
| Reasoning mode | Documented | Documented |
| Tool calling | Documented | Documented |
| Image input | Documented | Documented |
| Audio input | Documented | Documented |
| Structured output | Documented | Documented |
| License | Proprietary | Proprietary |
| Released | Jul 21, 2026 | Nov 18, 2025 |
Workload guidance
On the published numbers, Gemini 3 Pro Preview accepts the larger context window and Gemini 3.5 Flash Lite is cheaper per input token. Which matters more depends on whether your bottleneck is document size or spend — the table above has the exact figures.
Provenance
Prices and hosted performance can change. SyncDev records source references and clearly separates documented specifications from measured values; confirm commercial terms with the provider before deployment.
Gemini 3.5 Flash Lite
Google · model record and recorded source
Gemini 3 Pro Preview
Google · model record and recorded source
Choose any two approved model records and review them with the same evidence rules.