Google Gemini and Gemma · LLM API pricing

Gemini 3 Flash Preview API pricing: cheapest provider

2 providers sell Gemini 3 Flash Preview. Google Gemini API is cheapest, and listed prices are close.

Cheapest$1.13per 1M · Google Gemini API
Input · output$0.50 / $3.00per 1M tokens
Price gap1.0×across 2 providers
Accuracy89.4%GPQA · high reasoning
Context1Mmax tokens

$1.13 Google Gemini APIclose prices$1.13 Google Cloud Vertex AI

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Standard list prices in USD from each provider's pricing page · last price change Sep 28, 2026 · How we collect and rank prices

Ranked for your volume

Gemini 3 Flash Preview monthly cost by provider

Change the monthly tokens and the ranking updates instantly, using each provider's standard list price.

Input tokens per month (millions)Prompts, context and documents you send.Output tokens per month (millions)Tokens the model generates.

More requirements: caching, context, features, provider

Cached share of input (%)0 = no caching. Only documented cache-read rates qualify.Required context per request (tokens)0 = any. Providers without a sufficient known limit are excluded.Required featureProvider requirement

Provider	Estimated / month	Input / 1M	Output / 1M	Cached input / 1M	Context
1 Google Cloud Vertex AICloud platform - lowest for your volumePricing page	$11.00	$0.50	$3.00	$0.05	1,048,576
2 Google Gemini APIModel developerPricing page	$11.00	$0.50	$3.00	$0.05	1,048,576

Order depends on listed price for your volume only. No provider pays for its position.

Input volume includes the cached share, not an additional token volume. This is a list-price estimate, not a quote: cache-write charges, cache eligibility/TTL, batch discounts, long-context surcharges, regional pricing and taxes are excluded. Check the provider's terms for your workload before switching.

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| Gemini 3 Flash Preview provider | Input / 1M tokens | Output / 1M tokens | 10M in + 2M out per month |
|---|---:|---:|---:|
| Google Cloud Vertex AI | $0.50 | $3.00 | $11.00 |
| Google Gemini API | $0.50 | $3.00 | $11.00 |

Standard list prices as of Oct 31, 2026. Source: [AISelect.online](https://aiselect.online/models/gemini-3-flash-preview)

Accuracy: GPQA Diamond (graduate-level science questions) measured by Epoch AI (CC BY 4.0) on gemini-3-flash-preview_high, run Aug 6, 2026. The model is the same at every provider, though quantized deployments can score lower.

Price history

The cheapest price has not changed since tracking started on Sep 28, 2026: $1.13 per 1M tokens at Google Gemini API. All price changes

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Already using the OpenAI SDK? Change the base URL, key and model name:

from openai import OpenAI
import os

client = OpenAI(
    base_url="https://generativelanguage.googleapis.com/v1beta/openai",
    api_key=os.environ["GEMINI_API_KEY"],
)
response = client.chat.completions.create(
    model="gemini-3-flash-preview",
    messages=[{"role": "user", "content": "Hello"}],
)

Base URL from Google Gemini API's API docs, model name from the open pricing datasets. Check the model page in Google Gemini API's docs before you switch production traffic.

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The developer's own API (Google Gemini API) has the lowest listed blended price for Gemini 3 Flash Preview.

2 of 2 providers list a cached-input price. Repeated system prompts or documents can cost much less there than the standard input rate shown above.

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