Glimmer Index
Plus $4/mo

Gemini 3 Flash Preview

Google · Released Dec 17, 2025 · Closed weights

New Gemini flash lane bringing frontier-style multimodal reasoning to cheaper runs

Strongest at
Reading & documents
Top 14% of the past year's models · one benchmark so far
Price per 1M tokens
$0.5 / $3
input / output · Google
Context window
1.05M
tokens in · 65.5K out
Since the last one
183 days
after Gemini 2.5 Flash
Lab announcement ↗Open in the timeline

Capability profile

Scored against 91 models released in the past year. 50 is the average model; further out is better.

This modelGemini 2.5 FlashMedian of the past year
5090Median of the past yearCoding: 49 · Better than 31%Writing: 49 · Better than 27%Reading & documents: 65 · Top 14%Reasoning: 58 · Better than 46%Math: 50 · Better than 27%Science: 63 · Top 47%Visual reasoning: 54 · Better than 45%Gemini 2.5 Flash: 46CodingWritingReadingReasoningMathScienceVision
Coding49Better than 31%
Writing49Better than 27% · 1 test
Reading & documents65Top 14% · 1 test
Reasoning58Better than 46%
Math50Better than 27%
Science63+17.3Top 47%
Visual reasoning54Better than 45% · 1 test

No results yet: Computer use

Where these scores come from

Each capability combines the published benchmarks listed here, rescaled so 50 is the reference average and 15 points is one standard deviation. A hollow dot rests on a single benchmark.

Price against capability

The shaded corner holds anything better and cheaper. Prices blend input and output 3 to 1.

Nothing from the past year scores higher on Reading & documents for less.

$0.1$0.3$1$3$10204060GPT-6.1 Terra: 64, $2 per 1MMuse Spark Open: 61, $2 per 1MClaude Haiku 5.5: 39, $0.2 per 1MMistral Large 4: 29, $2.06 per 1MGemini 4 Argon: 71, $4 per 1MGPT-6.1 Sol: 73, $4 per 1MClaude Sonnet 5.5: 67, $4 per 1MGPT-6 Sol: 62, $4 per 1MGPT-6 Luna: 50, $0.2 per 1MClaude Opus 5.5: 68, $8 per 1MGrok 4.7: 56, $3 per 1MDeepSeek V4.1 Flash: 60, $0.21 per 1MGPT-6 Astra: 72, $20 per 1MMuse Spark 1.3: 63, $2 per 1MGemini 3.8 Flash: 55, $1.5 per 1MClaude Fable 5.1: 71, $20 per 1MQwen3.8 Flash: 46, $0.23 per 1MGLM-5.3-Flash: 50, $0.24 per 1MDeepSeek V4 Flash Vision Exp: 33, $0.32 per 1MQwen3.8 27B: 45, $1.12 per 1MGLM-5.3: 47, $2.15 per 1MGemini 3.7 Flash: 60, $1.5 per 1MDeepSeek V4 Pro 0813: 63, $0.99 per 1MGrok 4.6: 53, $3 per 1MMuse Glimmer 30B: 47, $0.52 per 1MMuse Spark 1.2: 54, $2 per 1MQwen3.8 Max: 59, $3 per 1MDeepSeek V4 Flash 0731: 59, $0.15 per 1MClaude Opus 5: 63, $10 per 1MGemini 3.6 Flash: 50, $1.5 per 1MGemini 3.5 Flash Lite: 34, $0.85 per 1MKimi K3: 58, $6 per 1MQwen3.7 Flash: 22, $0.055 per 1MGPT-5.6 Terra: 50, $4.5 per 1MGPT-5.6 Sol: 65, $8 per 1MGPT-5.6 Luna: 44, $0.45 per 1MGrok 4.5: 49, $3 per 1MClaude Sonnet 5: 51, $4 per 1MGLM-5.2: 47, $2.15 per 1MKimi K2.7 Code: 34, $1.71 per 1MClaude Fable 5: 73, $20 per 1MQwen3.7 Plus: 38, $0.7 per 1MClaude Opus 4.8: 55, $10 per 1MQwen3.7 Max: 49, $3.75 per 1MGemini 3.5 Flash: 56, $3.38 per 1MDeepSeek V4 Pro: 51, $1.19 per 1MDeepSeek V4 Flash: 31, $0.18 per 1MGPT-5.5: 64, $11.2 per 1MQwen3.6 27B: 30, $1.35 per 1MKimi K2.6: 36, $1.71 per 1MGrok 4.3: 25, $1.56 per 1MGrok Build 0.1: 38, $1.25 per 1MClaude Opus 4.7: 56, $10 per 1MMuse Spark 1.1: 50, $2 per 1MQwen3.6 Plus: 40, $1.12 per 1MGLM-5V-Turbo: 39, $1.9 per 1MGPT-5.4 nano: 36, $0.46 per 1MGPT-5.4 mini: 40, $1.69 per 1MGPT-5.4: 63, $5.62 per 1MQwen3.5 9B: 64, $0.19 per 1MQwen3.5 27B: 26, $0.82 per 1MGemini 3.1 Pro Preview: 69, $4.5 per 1MClaude Sonnet 4.6: 52, $6 per 1MClaude Opus 4.6: 51, $10 per 1MGPT-5.2 Codex: 50, $4.81 per 1MMistral Large 3: 20, $0.75 per 1MGemini 3 Flash Preview: 65, $1.12 per 1MGemini 3 Flash PreviewPrice per 1M tokens →↑ Reading & documents$0.1$1$10204060GPT-6.1 Terra: 64, $2 per 1MMuse Spark Open: 61, $2 per 1MClaude Haiku 5.5: 39, $0.2 per 1MMistral Large 4: 29, $2.06 per 1MGemini 4 Argon: 71, $4 per 1MGPT-6.1 Sol: 73, $4 per 1MClaude Sonnet 5.5: 67, $4 per 1MGPT-6 Sol: 62, $4 per 1MGPT-6 Luna: 50, $0.2 per 1MClaude Opus 5.5: 68, $8 per 1MGrok 4.7: 56, $3 per 1MDeepSeek V4.1 Flash: 60, $0.21 per 1MGPT-6 Astra: 72, $20 per 1MMuse Spark 1.3: 63, $2 per 1MGemini 3.8 Flash: 55, $1.5 per 1MClaude Fable 5.1: 71, $20 per 1MQwen3.8 Flash: 46, $0.23 per 1MGLM-5.3-Flash: 50, $0.24 per 1MDeepSeek V4 Flash Vision Exp: 33, $0.32 per 1MQwen3.8 27B: 45, $1.12 per 1MGLM-5.3: 47, $2.15 per 1MGemini 3.7 Flash: 60, $1.5 per 1MDeepSeek V4 Pro 0813: 63, $0.99 per 1MGrok 4.6: 53, $3 per 1MMuse Glimmer 30B: 47, $0.52 per 1MMuse Spark 1.2: 54, $2 per 1MQwen3.8 Max: 59, $3 per 1MDeepSeek V4 Flash 0731: 59, $0.15 per 1MClaude Opus 5: 63, $10 per 1MGemini 3.6 Flash: 50, $1.5 per 1MGemini 3.5 Flash Lite: 34, $0.85 per 1MKimi K3: 58, $6 per 1MQwen3.7 Flash: 22, $0.055 per 1MGPT-5.6 Terra: 50, $4.5 per 1MGPT-5.6 Sol: 65, $8 per 1MGPT-5.6 Luna: 44, $0.45 per 1MGrok 4.5: 49, $3 per 1MClaude Sonnet 5: 51, $4 per 1MGLM-5.2: 47, $2.15 per 1MKimi K2.7 Code: 34, $1.71 per 1MClaude Fable 5: 73, $20 per 1MQwen3.7 Plus: 38, $0.7 per 1MClaude Opus 4.8: 55, $10 per 1MQwen3.7 Max: 49, $3.75 per 1MGemini 3.5 Flash: 56, $3.38 per 1MDeepSeek V4 Pro: 51, $1.19 per 1MDeepSeek V4 Flash: 31, $0.18 per 1MGPT-5.5: 64, $11.2 per 1MQwen3.6 27B: 30, $1.35 per 1MKimi K2.6: 36, $1.71 per 1MGrok 4.3: 25, $1.56 per 1MGrok Build 0.1: 38, $1.25 per 1MClaude Opus 4.7: 56, $10 per 1MMuse Spark 1.1: 50, $2 per 1MQwen3.6 Plus: 40, $1.12 per 1MGLM-5V-Turbo: 39, $1.9 per 1MGPT-5.4 nano: 36, $0.46 per 1MGPT-5.4 mini: 40, $1.69 per 1MGPT-5.4: 63, $5.62 per 1MQwen3.5 9B: 64, $0.19 per 1MQwen3.5 27B: 26, $0.82 per 1MGemini 3.1 Pro Preview: 69, $4.5 per 1MClaude Sonnet 4.6: 52, $6 per 1MClaude Opus 4.6: 51, $10 per 1MGPT-5.2 Codex: 50, $4.81 per 1MMistral Large 3: 20, $0.75 per 1MGemini 3 Flash Preview: 65, $1.12 per 1MGemini 3 Flash PreviewPrice per 1M tokens →↑ Reading & documents

Google $0.5 / $3 · OpenRouter $0.5 / $3 · Cached input $0.05

Since Gemini 2.5 Flash

8 releases in the Gemini line.

Gemini 2.0 FlashDec 11, 2024160dGemini 2.5 Flash Preview 05-20May 20, 202528dGemini 2.5 FlashJun 17, 2025183dGemini 3 Flash PreviewDec 17, 2025153dGemini 3.5 FlashMay 19, 202663dGemini 3.6 FlashJul 21, 202623dGemini 3.7 FlashAug 13, 2026
Released183 days later
Price in / out$0.5 / $3+32%
Context1.05Msame
Science63+17.3

A newer release is out: Gemini 3.8 Flash.

Epoch benchmark boards

Best result on each board it has run. The tick marks the leader.

GeoBench
88%#1 of 28
VPCT
73%#3 of 29
SimpleQA Verified
67%#11 of 85
Balrog
48%#7 of 39
OTIS Mock AIME 2024-2025
96%#43 of 216
GPQA diamond
89%#48 of 234
Terminal Bench
64%#11 of 50
WeirdML
62%#32 of 141
12 more boards
DeepResearch Bench
50%#7 of 26
SimpleBench
61%#24 of 89
DTBench
89%#52 of 179
ARC-AGI
85%#40 of 107
SWE-Bench verified
75%#13 of 32
Chess Puzzles
39%#38 of 93
ARC-AGI-2
34%#43 of 103
Mystery Game Puzzles
26%#37 of 88
FrontierMath-Tiers-1-3-v2-Private
51%#54 of 90
GSO-Bench
10%#21 of 35
ProofBench
15%#60 of 81
FrontierMath-Tier-4-v2-Private
17%#56 of 72

Google's past year

37 release days in the past year, about one every 10 days. The next is expected around Nov 3, 2026. Forecasts ↗

NovDecJanFebMarAprMayJunJulAugSepOctNov

Specifications

RELEASE DATEDec 17, 2025
WEIGHTSClosed weights
CONTEXT WINDOW1.05M
MAX OUTPUT65.5K
REASONINGNot listed
TOOL CALLINGNot listed
INPUTStext, image/png, image/jpeg, image/webp, image/heic, image/heif, video/mp4, video/mpeg, video/mov, video/avi, video/x-flv, video/mpg, video/webm, video/wmv, video/3gpp, audio/wav, audio/mp3, audio/aiff, audio/aac, audio/ogg, audio/flac, audio/mpeg, audio/m4a, audio/l16, audio/opus, audio/alaw, audio/mulaw, audio/webm, application/pdf
OUTPUTStext

Models.dev record ↗

Specifications and prices from Models.dev; availability and limits may differ by provider. Benchmarks from Epoch AI (CC BY 4.0), LiveBench and the other sources named above.