Compare / head-to-head
Gemini 3 Flash PreviewvsGemini 3 Pro Preview
Gemini 3 Pro Preview leads 8 of 15 shared benchmarks. Both offer a 1.0M-token context window.
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
7 – 8
Gemini 3 Pro Preview leads
Cheaper per token
—
list price, input + output
Larger context
Tie
both 1.0M tokens
Providers
Google
same provider
Gemini 3 Flash Preview
Google · released 2025-12-17
textvisionaudio
- Context
- 1.0M
- Max out
- 66K
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 34 · 12 core
Gemini 3 Pro Preview
Google · released 2025-11-18
textvisionaudiovideo
Quality
Benchmark matrix
15 shared · 11 only Gemini 3 Flash Preview · 9 only Gemini 3 Pro Preview| Benchmark | Gemini 3 Flash Preview | Gemini 3 Pro Preview | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 15 | ||||
| SWE-bench Verified | 78% ↗ | 76.2% ↗ | +1.8 pt | Gemini 3 Flash Preview |
| GPQA Diamond | 90.4% ↗ | 91.9% ↗ | -1.5 pt | Gemini 3 Pro Preview |
| AIME 2025 | 95.2% ↗ | 95% ↗ | +0.2 pt | Gemini 3 Flash Preview |
| Humanity's Last Exam (no tools) | 33.7% ↗ | 37.5% ↗ | -3.8 pt | Gemini 3 Pro Preview |
| BALROG (BALROG) | 48.1% ↗ | 58.1% ↗ | -10 pt | Gemini 3 Pro Preview |
| Chess Puzzles (Epoch AI run) | 40% ↗epoch run | 31% ↗epoch run | +9 pt | Gemini 3 Flash Preview |
| GSO Opt@1 (GSO) | 7.8% ↗ | 17.7% ↗ | -9.9 pt | Gemini 3 Pro Preview |
| MMMU-Pro | 81.2% ↗ | 81% ↗ | +0.2 pt | Gemini 3 Flash Preview |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 95.6% ↗epoch run | 91.4% ↗epoch run | +4.2 pt | Gemini 3 Flash Preview |
| SAGE (Vals AI) | 51.8% ↗ | 47.6% ↗ | +4.2 pt | Gemini 3 Flash Preview |
| SimpleBench (SimpleBench) | 61.1% ↗ | 76.4% ↗ | -15.3 pt | Gemini 3 Pro Preview |
| SimpleQA Verified | 68.7% ↗ | 72.1% ↗ | -3.4 pt | Gemini 3 Pro Preview |
| SWE-bench Verified (Epoch AI run) | 75.4% ↗epoch run | 72.9% ↗epoch run | +2.5 pt | Gemini 3 Flash Preview |
| Vending-Bench 2 (Andon Labs) | 3634.72 ↗ | 5478.16 ↗ | -1843.4 | Gemini 3 Pro Preview |
| WeirdML (Håvard Tveit Ihle) | 61.6% ↗ | 69.9% ↗ | -8.3 pt | Gemini 3 Pro Preview |
| Only Gemini 3 Flash Preview reports · 11 | ||||
| LMArena Elo | 1472.7 ↗ | not reported | — | — |
| FrontierMath Tier 4 v2 (Epoch AI run) | 17.1% ↗epoch run | not reported | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 51.2% ↗epoch run | not reported | — | — |
| LMArena Vision (LMArena) | 1272.9 ↗ | not reported | — | — |
| LMArena WebDev (LMArena) | 1438.9 ↗ | not reported | — | — |
| Mystery Game Puzzles (Epoch AI run) | 26% ↗epoch run | not reported | — | — |
| tau2-bench Airline (Sierra) | 82.5% ↗ | not reported | — | — |
| tau2-bench Banking Knowledge (Sierra) | 27.3% ↗ | not reported | — | — |
| tau2-bench Retail (Sierra) | 76.8% ↗ | not reported | — | — |
| tau2-bench Telecom (Sierra) | 91.2% ↗ | not reported | — | — |
| Terminal-Bench 2.0 | 47.6% ↗ | not reported | — | — |
| Only Gemini 3 Pro Preview reports · 9 | ||||
| AIME 2025 (with code execution) | not reported | 100% ↗ | — | — |
| ARC-AGI-2 (ARC Prize Verified) | not reported | 31.1% ↗ | — | — |
| CharXiv Reasoning | not reported | 81.4% ↗ | — | — |
| Humanity's Last Exam (with search and code execution) | not reported | 45.8% ↗ | — | — |
| MathArena Apex | not reported | 23.4% ↗ | — | — |
| MMMLU | not reported | 91.8% ↗ | — | — |
| Terminal-Bench 2.0 (Terminus-2 agent) | not reported | 54.2% ↗ | — | — |
| Video-MMMU | not reported | 87.6% ↗ | — | — |
| τ2-bench | not reported | 85.4% ↗ | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Gemini 3 Flash Preview minus Gemini 3 Pro Preview in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | Gemini 3 Flash Preview | Gemini 3 Pro Preview | Edge |
|---|---|---|---|
| Context window | 1.0M tokens | 1.0M tokens | Tie |
| Max output | 66K tokens | 66K tokens | Tie |
| Input price / 1M | — | $2 ↗ | — |
| Output price / 1M | — | $12 ↗ | — |
| Cached input / 1M | — | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | — | $14 | — |
| Modalities | text · vision · audio | text · vision · audio · video | Gemini 3 Pro Preview |
| Released | 2025-12-17 | 2025-11-18 | — |
| Cited benchmark scores | 34 | 25 | — |
Reliability
Google status
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