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Gemini 3 Flash Preview

API ID gemini-3-flash-preview

gemini-3-flash-preview is a preview Google model, released December 2025. It has a 1,048,576-token context window and up to 65,536 output tokens. It takes image and PDF input and supports function calling, structured outputs and reasoning. Standard price: $0.50 input and $3.00 output per 1M tokens.

Gemini 3 Flash Preview

Google's description
Status
Active
Released
December 2025
Shutdown
none announced

No deprecation or shutdown date has been announced as of October 15, 2026.

How to migrate to Gemini 3.6 Flash

Free tier: in place when tracking began (October 7, 2026) (source) · All free models

Benchmarks

Scores as each source published them
or

Comparing with Gemini 2.5 Flash, the previous model in this line. A score is compared only with the same benchmark from the same source, at the same setting where both have it. Full comparison: prices, limits, features

Arena

ArenaGemini 3 Flash PreviewGemini 2.5 FlashChangeRankDateSource
Text
Other settings
  • 1458 ±3 vs not rated thinking minimal
By category
  • Math 1475 rank 47 vs 1405 (+70)
  • Creative writing 1457 rank 31 vs 1394 (+63)
  • Instruction following 1458 rank 53 vs 1399 (+59)
  • Hard prompts 1493 rank 45 vs 1419 (+74)
  • Long prompts 1476 rank 53 vs 1417 (+59)
  • Multi-turn 1482 rank 36 vs 1403 (+79)
  • Expert 1497 rank 48 vs 1425 (+72)
1473 ±41409 ±2+6444 of 415
31,343 votes		Oct 13, 2026source
Text: Coding
Other settings
  • 1490 ±5 vs not rated thinking minimal
1506 ±81424 ±4+8266 of 410
6,601 votes		Oct 13, 2026source
WebDev
Other settings
  • 1385 ±5 vs not rated thinking minimal
1440 ±9not rated75 of 142
10,892 votes		Oct 13, 2026source
Vision
Other settings
  • 1260 ±5 vs not rated thinking minimal
1273 ±51215 ±5+5836 of 165
39,145 votes		Oct 9, 2026source
Search1189 ±4not rated27 of 42
196,399 votes		Oct 13, 2026source
Document1439 ±9not rated36 of 44
7,158 votes		Sep 13, 2026source

Rated as gemini-3-flash; Gemini 2.5 Flash as gemini-2.5-flash. Ratings come from people voting between two anonymous answers; Text, Vision, Search and Document are style-controlled, as on arena.ai. Data: Arena (arena.ai), CC BY 4.0.

Epoch AI

BenchmarkGemini 3 Flash PreviewGemini 2.5 FlashChangeSettingRunSource
FrontierMath Tier 417.1%not runJun 11, 2026source
FrontierMath Tiers 1-351.2%not runJun 11, 2026source
GPQA Diamond
Other settings
  • 83.2% vs not run
89.4%not runhigh effortAug 6, 2026source
OTIS Mock AIME 2024-2025
Other settings
  • 92.8% vs not run
95.6%not runhigh effortAug 6, 2026source
SimpleQA Verified66.8%not runhigh effortAug 27, 2026source
SWE-bench Verified75.4%not runFeb 18, 2026source

Run independently by Epoch AI. Data: Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.

Features

Compare models
FeatureValueSinceSource
Structured outputsThe model can be held to a JSON schema you supply, so every reply parses without retries or cleanup.Supportedin place when tracking began (October 6, 2026)source
Function callingAlso called tool use. You describe functions; the model replies with a function name and arguments for your code to run, then uses the result.Supportedin place when tracking began (October 6, 2026)source
Prompt cachingA prompt prefix you send again and again (system prompt, documents, tools) is cached, so later requests cost less and start faster.Supportedin place when tracking began (October 6, 2026)source
Batch APISend many requests as one job that runs in the background, usually finished within 24 hours, at a lower price than live requests.Supportedin place when tracking began (October 6, 2026)source
Image inputImages such as screenshots, photos and charts can go in the prompt for the model to read.Supportedin place when tracking began (October 6, 2026)source
PDF inputPDF files can go in the prompt directly, without converting them to text first.Supportedin place when tracking began (October 6, 2026)source
Reasoning / thinkingThe model can work through a problem step by step before it answers: usually better answers to hard questions, at the cost of more tokens and time.Supportedin place when tracking began (October 6, 2026)source
Built-in web searchThe company's API can search the web for the model during a request and cite its sources; you don't need a search service of your own.Supportedin place when tracking began (October 6, 2026)source
Context windowThe most the model can work with in one request, in tokens: your prompt, conversation history and files. A token is about three-quarters of an English word.1,048,576 tokensin place when tracking began (October 6, 2026)source
Max output tokensThe longest reply the model can write in one response, in tokens. A token is about three-quarters of an English word.65,536 tokensin place when tracking began (October 6, 2026)source

Not published by Google: Fine-tuning, temperature parameter, top_p parameter, logprobs.

Price history

USD per 1M tokens, standard tier
$0.00$1.00$2.00$3.00$4.00Oct 2026In $0.50Out $3.00Oct 1, 2026 to Oct 15, 2026: Input $0.50, Output $3.00
$0.00$1.00$2.00$3.00$4.00Oct 2026In $0.50Out $3.00Oct 1, 2026 to Oct 15, 2026: Input $0.50, Output $3.00

We started recording this model's prices on Oct 1, 2026. The history grows with each daily check.

Show as a table
FromTypePrice
Oct 1, 2026Input$0.50
Oct 1, 2026Output$3.00

Prices

USD per 1M tokens, every type and band, by tier
TypeModalityPrice $/1MIn effect
Standard
inputaudio$1.00
inputtext/image/video$0.50
cached inputaudio$0.10
cached inputtext/image/video$0.05
output—$3.00
cache storage per hour—$1.00
Batch
inputaudio$0.50
inputtext/image/video$0.25
cached inputaudio$0.10
cached inputtext/image/video$0.05
output—$1.50
cache storage per hour—$1.00
Flex
inputaudio$0.50
inputtext/image/video$0.25
cached inputaudio$0.10
cached inputtext/image/video$0.05
output—$1.50
cache storage per hour—$1.00
Priority
inputaudio$1.80
inputtext/image/video$0.90
cached inputaudio$0.18
cached inputtext/image/video$0.09
output—$5.40
cache storage per hour—$1.80

Changelog

Changes we detected on Google's pages

No changes recorded yet.

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Last checked · Sources: Google deprecations, Google pricing, Google models, Google aliases, Google api models