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Gemini 3 Flash PreviewvsGPT-5 mini

Gemini 3 Flash Preview leads 8 of 8 shared benchmarks. Gemini 3 Flash Preview has the larger context window (1.0M tokens).

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
8 – 0
Gemini 3 Flash Preview leads
Cheaper per token
list price, input + output
Larger context
Gemini 3 Flash Preview
1.0M tokens
Provider uptime (30d)
100% · 94.9045%
Google · OpenAI
Gemini 3 Flash Preview
Google · released 2025-12-17
textvisionaudio
Context
1.0M
Max out
66K
Input /1M
Output /1M
Cached /1M
Scores
13 · 9 core
GPT-5 mini
OpenAI · released 2025-08-07
textvision
Context
400K
Max out
128K
Input /1M
$0.25
Output /1M
$2
Cached /1M
$0.025
Scores
9 · 8 core
Quality

Benchmark matrix

BenchmarkGemini 3 Flash PreviewGPT-5 miniΔEdge
Reported by both · 8
SWE-bench Verified78% 71% +7 ptGemini 3 Flash Preview
GPQA Diamond90.4% 81.6% +8.8 ptGemini 3 Flash Preview
AIME 202595.2% 87.5% matharena+7.7 ptGemini 3 Flash Preview
FrontierMath Tier 4 v2 (Epoch AI run)17.1% epoch12.2% epoch+4.9 ptGemini 3 Flash Preview
FrontierMath Tiers 1-3 v2 (Epoch AI run)51.2% epoch46.7% epoch+4.5 ptGemini 3 Flash Preview
OTIS Mock AIME 2024-2025 (Epoch AI run)95.6% epoch86.7% epoch+8.9 ptGemini 3 Flash Preview
SimpleQA Verified68.7% 21.6% epoch+47.1 ptGemini 3 Flash Preview
SWE-bench Verified (Epoch AI run)75.4% epoch64.7% epoch+10.7 ptGemini 3 Flash Preview
Only Gemini 3 Flash Preview reports · 3
Humanity's Last Exam (no tools)33.7% not reported
MMMU-Pro81.2% not reported
Terminal-Bench 2.047.6% not reported
Only GPT-5 mini reports · 0
GPT-5 mini reports nothing Gemini 3 Flash Preview does not.
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 GPT-5 mini 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

SpecGemini 3 Flash PreviewGPT-5 miniEdge
Context window1.0M tokens400K tokensGemini 3 Flash Preview
Max output66K tokens128K tokensGPT-5 mini
Input price / 1M$0.25
Output price / 1M$2
Cached input / 1M$0.025
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$2.25
Modalitiestext · vision · audiotext · visionGemini 3 Flash Preview
Released2025-12-172025-08-07
Cited benchmark scores139
Reliability

Provider status

All providers
More matchups

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Public benchmarks are a starting point. Run Gemini 3 Flash Preview and GPT-5 mini on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.