How much does Gemini 3 Flash Preview cost?

Gemini 3 Flash Preview costs $0.50/M input tokens and $3.00/M output tokens, with separate rates for Cache Read at $0.05/M tokens, Cache Write at $0.08333/M tokens, Image Input at $0.50/M tokens, Input Audio at $1.00/M tokens, Input Audio Cache at $0.10/M tokens, and Web Search at $14.00/1K calls.

What is the context length of Gemini 3 Flash Preview?

Gemini 3 Flash Preview has a 1,048,576 token context window. It supports up to 65,536 completion tokens.

Does Gemini 3 Flash Preview support tool calling and structured outputs?

Yes. Gemini 3 Flash Preview accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.

What inputs and outputs does Gemini 3 Flash Preview support?

Gemini 3 Flash Preview accepts text, images, files such as PDFs, audio, and video as input and returns text.

Which providers serve Gemini 3 Flash Preview?

Gemini 3 Flash Preview is served by 2 providers on OpenRouter: Google Vertex and Google AI Studio. Requests are routed to the best available provider, with automatic failover to the others, and you can pin or exclude providers with provider routing.

When was Gemini 3 Flash Preview released?

Gemini 3 Flash Preview was released on December 17, 2025.

Google: Gemini 3 Flash Preview

google/gemini-3-flash-preview

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Gemini 3 Flash Preview is a high speed, high value thinking model designed for agentic workflows, multi turn chat, and coding assistance. It delivers near Pro level reasoning and tool use performance with substantially lower latency than larger Gemini variants, making it well suited for interactive development, long running agent loops, and collaborative coding tasks. Compared to Gemini 2.5 Flash, it provides broad quality improvements across reasoning, multimodal understanding, and reliability.

The model supports a 1M token context window and multimodal inputs including text, images, audio, video, and PDFs, with text output. It includes configurable reasoning via thinking levels (minimal, low, medium, high), structured output, tool use, and automatic context caching. Gemini 3 Flash Preview is optimized for users who want strong reasoning and agentic behavior without the cost or latency of full scale frontier models.

Modalities

In / out price

$0.50 / $3per 1M

Context

1.0M

Released

Dec 17, 2025

Providers

Different companies host the same model. OpenRouter routes your request to one of them based on the routing mode you pick: Balanced (price + speed), Nitro (fastest), or Floor (cheapest).

Latency / throughput


	$0.50	$3.00	$0.05	$0.10	0.85s	104 tok/s	100.00%
	$0.50	$3.00	$0.05	$0.10	0.99s	91 tok/s	100.00%
Not used in Standard routing:Why these endpoints are not used
Flex	$0.25	$1.50	$0.025	$0.05	14.39s	11 tok/s	99.95%
Flex	$0.25	$1.50	$0.025	$0.05	1.57s	98 tok/s	100.00%
Priority	$0.90	$5.40	$0.09	$0.18	1.41s	137 tok/s	100.00%
Priority	$0.90	$5.40	$0.09	$0.18	1.88s	84 tok/s	100.00%

Input $0.50Output $3.00
104 tok/s100.00% uptime
Input $0.50Output $3.00
91 tok/s100.00% uptime
Not used in Standard routing:Why these endpoints are not used
Input $0.25Output $1.50
Flex
11 tok/s99.95% uptime
Input $0.25Output $1.50
Flex
98 tok/s100.00% uptime
Input $0.90Output $5.40
Priority
137 tok/s100.00% uptime
Input $0.90Output $5.40
Priority
84 tok/s100.00% uptime

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

Weighted average

Input

$0.2616/M tokens

Output

$2.872/M tokens

Gemini 3 Flash Preview — Price history

Price history

No effective price data for this selection

		$0.249	$3.00	60.3%	31.0%
		$0.295	$3.00	51.1%	57.9%
Not used in Standard routing:Why these endpoints are not used
	Flex	$0.102	$1.50	79.6%	10.5%
	Flex	$0.230	$1.50	9.1%	0.2%
	Priority	$0.722	$5.40	23.0%	0.1%
	Priority	$0.825	$5.40	9.8%	0.2%

Effective in $0.249Effective out $3.00
Token share
31.0%
Effective in $0.295Effective out $3.00
Token share
57.9%
Not used in Standard routing:Why these endpoints are not used
Effective in $0.102Effective out $1.50
FlexToken share
10.5%
Effective in $0.230Effective out $1.50
FlexToken share
0.2%
Effective in $0.722Effective out $5.40
PriorityToken share
0.1%
Effective in $0.825Effective out $5.40
PriorityToken share
0.2%

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Uptime (3d)

100.00%

Availability (3d)

99.89%

Availability over the last 3 days

Last 72 hours

Availability 99.89%

3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability

99.90%

Without Routing

99.01%

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and provider routing options.

Benchmarks

Scores on standardized evaluations and this model’s own outputs on shared benchmark prompts. Higher percentages are better — and each rank shows where this model lands among the models evaluated on that source.

Benchmark score summary for Google: Gemini 3 Flash Preview (Artificial Analysis, Design Arena and Vals AI)
Source	Benchmark	Score
Artificial Analysis	Gemini 3 Flash Preview (Non-reasoning) GPQA Diamond	81.2%
Artificial Analysis	Gemini 3 Flash Preview (Non-reasoning) HLE	15.0%
Artificial Analysis	Gemini 3 Flash Preview (Non-reasoning) IFBench	55.1%
Artificial Analysis	Gemini 3 Flash Preview (Non-reasoning) τ²-Bench Telecom	43.3%
Artificial Analysis	Gemini 3 Flash Preview (Non-reasoning) AA-LCR	55.3%
Artificial Analysis	Gemini 3 Flash Preview (Non-reasoning) CritPt	1.4%
Artificial Analysis	Gemini 3 Flash Preview (Non-reasoning) LiveCodeBench	79.7%
Artificial Analysis	Gemini 3 Flash Preview (Non-reasoning) Terminal-Bench Hard	31.8%
Artificial Analysis	Gemini 3 Flash Preview (Non-reasoning) MMLU-Pro	88.2%
Artificial Analysis	Gemini 3 Flash Preview (Non-reasoning) AIME 2025	55.7%
Artificial Analysis	Gemini 3 Flash Preview (Reasoning) GPQA Diamond	89.8%
Artificial Analysis	Gemini 3 Flash Preview (Reasoning) HLE	36.6%
Artificial Analysis	Gemini 3 Flash Preview (Reasoning) IFBench	78.0%
Artificial Analysis	Gemini 3 Flash Preview (Reasoning) τ²-Bench Telecom	80.4%
Artificial Analysis	Gemini 3 Flash Preview (Reasoning) AA-LCR	78.0%
Artificial Analysis	Gemini 3 Flash Preview (Reasoning) τ-Bench Banking	20.8%
Artificial Analysis	Gemini 3 Flash Preview (Reasoning) CritPt	8.6%
Artificial Analysis	Gemini 3 Flash Preview (Reasoning) LiveCodeBench	90.8%
Artificial Analysis	Gemini 3 Flash Preview (Reasoning) Terminal-Bench Hard	38.6%
Artificial Analysis	Gemini 3 Flash Preview (Reasoning) MMLU-Pro	89.0%
Artificial Analysis	Gemini 3 Flash Preview (Reasoning) AIME 2025	97.0%
Design Arena	Gemini 3 Flash Preview Agents Arena Agenticslides Elo	1073
Design Arena	Gemini 3 Flash Preview Agents Arena Agenticslides(Python-Pptx) Elo	1075
Design Arena	Gemini 3 Flash Preview Agents Arena Androidnative Elo	1034
Design Arena	Gemini 3 Flash Preview Agents Arena Full Stack Elo	1035
Design Arena	Gemini 3 Flash Preview Agents Arena Godotgamedev Elo	1161
Design Arena	Gemini 3 Flash Preview Agents Arena Mobile Apps Elo	1082
Design Arena	Gemini 3 Flash Preview Agents Arena Python-Pptxslides Elo	1036
Design Arena	Gemini 3 Flash Preview Agents Arena Webapps Elo	1087
Design Arena	Gemini 3 Flash Preview Models Arena 3D Elo	1163
Design Arena	Gemini 3 Flash Preview Models Arena Code Categories Elo	1179
Design Arena	Gemini 3 Flash Preview Models Arena Game Development Elo	1156
Design Arena	Gemini 3 Flash Preview Models Arena Website Elo	1188
Vals AI	Gemini 3 Flash (12/25) AIME	95.6%
Vals AI	Gemini 3 Flash (12/25) CaseLaw v2	55.8%
Vals AI	Gemini 3 Flash (12/25) Code Migration	6.4%
Vals AI	Gemini 3 Flash (12/25) CorpFin v2	66.4%
Vals AI	Gemini 3 Flash (12/25) EMB	26.0%
Vals AI	Gemini 3 Flash (12/25) Finance Agent (v2)	42.6%
Vals AI	Gemini 3 Flash (12/25) GPQA Diamond	87.9%
Vals AI	Gemini 3 Flash (12/25) Harvey's Legal Agent Benchmark v1	0.0%
Vals AI	Gemini 3 Flash (12/25) IOI v1	39.1%
Vals AI	Gemini 3 Flash (12/25) LiveCodeBench	85.6%
Vals AI	Gemini 3 Flash (12/25) LegalBench	86.9%
Vals AI	Gemini 3 Flash (12/25) Legal Research Bench	18.3%
Vals AI	Gemini 3 Flash (12/25) MedCode	55.9%
Vals AI	Gemini 3 Flash (12/25) MedQA	95.8%
Vals AI	Gemini 3 Flash (12/25) MedScribe	69.9%
Vals AI	Gemini 3 Flash (12/25) MGSM	93.3%
Vals AI	Gemini 3 Flash (12/25) MMLU Pro	88.6%
Vals AI	Gemini 3 Flash (12/25) MMMU Pro	87.6%
Vals AI	Gemini 3 Flash (12/25) MortgageTax	68.7%
Vals AI	Gemini 3 Flash (12/25) ProgramBench	0.0%
Vals AI	Gemini 3 Flash (12/25) ProofBench v1	15.0%
Vals AI	Gemini 3 Flash (12/25) SAGE v1	51.8%
Vals AI	Gemini 3 Flash (12/25) SWE-bench	75.0%
Vals AI	Gemini 3 Flash (12/25) Tax Agent Bench	11.8%
Vals AI	Gemini 3 Flash (12/25) TaxEval v2	73.9%
Vals AI	Gemini 3 Flash (12/25) Terminal-Bench 2.1	53.9%
Vals AI	Gemini 3 Flash (12/25) Vals Index	29.4%
Vals AI	Gemini 3 Flash (12/25) Vals Multimodal Index	52.2%
Vals AI	Gemini 3 Flash (12/25) Vibe Code Bench v1.1	20.2%

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

sofia-venezuela

new

66.9Btokens

Pocket AI

new

30.5Btokens

LangChain

new

26.9Btokens

OpenClaw

OpenClaw is an open-source AI agent that connects to your messaging apps and takes real actions on your behalf, from running commands and browsing the web to managing files and sending emails.

20Btokens

AI Psychologist

new

16Btokens

Rest of OpenRouter

66.8B

Top 5 Apps

5.38B

Google: Gemini Flash versions

Not currently available through EU in-region routing. In-region routing docs

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Google: Gemini 3 Flash Preview

Providers