Gemini 3 Flash Preview
Gemini 3 Flash is Google DeepMind's model pairing Pro-grade reasoning with Flash-level latency, efficiency, and cost. Access it through Velokey's unified endpoint with below-list pricing.
Use cases
Agentic coding & iterative development · Interactive & consumer apps
Input
Text, image
Output
Text
Billing
Per token
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Sign up to get $0.5 in free credits — about 20 free images
Pricing details
Transparent usage-based pricing with no hidden fees.
Detailed Pricing
Usage-based pricing breakdown
| Spec | Price | Official | Savings |
|---|---|---|---|
| Input/1M tokens | 0.4 Credits≈$0.4 | 0.5 Credits | -20% |
| Output/1M tokens | 2.4 Credits≈$2.4 | 3 Credits | -20% |
| Cache Read/1M tokens | 0.04 Credits≈$0.04 | 0.05 Credits | -20% |
Billing Rules
- Output price varies by model, resolution, quality, duration, or token usage.
- Uploaded reference files may be charged separately when supported.
- Add-on capabilities such as web search or image search may be billed per request.
- Token-based models are billed by input and output tokens.
- If the primary route is unavailable, Velokey may automatically switch to a stable fallback route when possible.
- Usage is pay-as-you-go with transparent credit deduction.
* Final cost depends on the generated result.
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Affordable Gemini 3 Flash API
Access Google's Gemini 3 Flash on Velokey — Pro-grade reasoning, top-tier coding, and multimodal understanding at Flash-level latency and cost, with a unified endpoint and below-list pricing for production apps.
Meet Gemini 3 Flash and its API access
Gemini 3 Flash is Google DeepMind's model released on December 17, 2025, pairing Pro-grade reasoning with Flash-level latency, efficiency, and cost. It combines frontier reasoning with Flash-series speed — 90.4% on GPQA Diamond, 78% on SWE-bench Verified (surpassing both the 2.5 series and Gemini 3 Pro), and 81.2% on MMMU Pro, comparable to Gemini 3 Pro. It runs about 3x faster than Gemini 2.5 Pro and uses roughly 30% fewer tokens on typical tasks. Velokey provides an affordable, easy-to-integrate Gemini 3 Flash API: a unified chat endpoint, a clear request flow, and below-list pricing shown in your console dashboard for production systems, agent pipelines, and consumer apps.
Pro-grade reasoning at Flash cost
Combines frontier reasoning with Flash-series speed: 90.4% on GPQA Diamond and 33.7% on Humanity's Last Exam (no tools), outperforming Gemini 2.5 Pro across multiple benchmarks — all at Flash-level latency and cost.
View Documentation →
Top-tier coding that beats 3 Pro
Scores 78% on SWE-bench Verified, surpassing both the Gemini 2.5 series and Gemini 3 Pro — fit for agentic coding, tool use, and iterative development loops.
View Documentation →
3x faster with 30% fewer tokens
Runs about 3x faster than Gemini 2.5 Pro and uses roughly 30% fewer tokens on average for typical tasks, optimized for low-latency, high-frequency workflows.
View Documentation →
Real-time multimodal understanding
Handles video analysis, image understanding, and visual Q&A, fit for real-time multimodal scenarios such as game assistance and design iteration.
View Documentation →
How to deploy the Gemini 3 Flash API on Velokey
Get started with just a few steps.
Sign up and get an API Key
Sign in to the Velokey console to generate an API Key that authenticates every request sent to Gemini 3 Flash.
Configure request parameters
Set model to gemini-3-flash and submit messages. Add images or video for multimodal tasks and keep requests lean to benefit from Flash-level latency.
Integrate and start calling
Send requests to Velokey's unified /v1/chat/completions endpoint to power assistants, agents, and interactive apps, with usage managed in one console.
Real-world use cases for Gemini 3 Flash
From engineering to interactive products, covering many low-latency scenarios.
Agentic coding & iterative development
78% on SWE-bench Verified with Flash-level latency — fit for agentic coding, rapid iteration, and tool-using development loops.
Interactive apps needing rapid responses
Low latency and low cost — fit for interactive apps that need fast, high-frequency responses.
Real-time multimodal analysis
Video, image, and visual Q&A — fit for real-time scenarios like game assistance and design iteration.
Complex reasoning tasks
90.4% on GPQA Diamond and 33.7% on Humanity's Last Exam (no tools) — fit for hard science and reasoning problems.
High-frequency workflows
About 3x faster than 2.5 Pro with ~30% fewer tokens — fit for high-throughput, cost-sensitive pipelines.
Consumer applications
Flash-level speed and cost — fit for consumer products serving many users at scale.
Why choose Velokey for Gemini 3 Flash
Discount on list price
Call Gemini 3 Flash at a lower price on Velokey — pay-as-you-go with no forced subscription, reducing upfront cost.
Unified API interface
One API Key accesses Gemini 3 Flash and other models — no juggling multiple accounts and keys, simplifying integration.
Complete docs and examples
Endpoint references, parameter details, and multimodal examples help you integrate reasoning, coding, and vision quickly.
Stable and highly available
Automatic failover and stable fallback routes maintain availability when the primary route is down, keeping production reliable.
API Reference
Complete API call examples and parameter descriptions
Endpoint
https://api.velokey.ai/v1beta/models/{model}:generateContentAuthentication
Bearer YOUR_API_KEYRequest Example
curl https://api.velokey.ai/v1beta/models/{model}:generateContent \
-X POST \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gemini-3-flash-preview",
"messages": [{"role": "user", "content": "Hello!"}],
"temperature": 0.7
}'Response Example
{
"id": "req_abc123",
"model": "gemini-3-flash-preview",
"created": 1234567890,
"data": { ... }
}Gemini 3 Flash API FAQ
What makes Gemini 3 Flash different?
It pairs Pro-grade reasoning with Flash-level latency, efficiency, and cost, combining frontier reasoning with Flash-series speed. It reaches 90.4% on GPQA Diamond, 78% on SWE-bench Verified, and 81.2% on MMMU Pro while running about 3x faster than Gemini 2.5 Pro.
How does its coding compare to Gemini 3 Pro?
On SWE-bench Verified it scores 78%, surpassing both the Gemini 2.5 series and Gemini 3 Pro — strong for agentic coding and iterative development at much lower latency.
How fast and efficient is it?
It runs about 3x faster than Gemini 2.5 Pro and uses roughly 30% fewer tokens on average for typical tasks, making it optimized for low-latency, high-frequency workflows.
What multimodal inputs does it support?
It supports video analysis, image understanding, and visual Q&A, fit for real-time multimodal scenarios such as game assistance and design iteration.
How is it billed on Velokey?
It is billed by input and output tokens with a discount on list price. The current Velokey price is shown in this page's pricing area and your console dashboard, with no forced subscription.
Start building with Gemini 3 Flash Preview today
Use one API key to access low-cost, stable AI models through Velokey.