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GoogleGemini 3.8 Flash
Google's stable, high-efficiency multimodal model for agents, software work, and large mixed-media inputs at an introductory Flash-tier price.
Plain-English overview
What Gemini 3.8 Flash actually is
Gemini 3.8 Flash combines a million-token input window with text, image, video, audio, and PDF understanding. Its native API features include function calling, code execution, search grounding, file search, and structured output.
The current price is promotional. Teams comparing annual costs should model both the introductory rate and the published higher rate that begins in 2027, plus any search or grounding calls.
Good fit for
- High-volume multimodal agents
- Long video, audio, PDF, and code inputs
- Teams optimizing capability per token cost
Category comparison
The facts that matter for text models
These are provider-published specifications, not Cody benchmark scores. Follow the linked sources for current limits and endpoint-specific exceptions.
- Context window
- 1,048,576 tokensMaximum combined prompt and working context documented by the provider.
- Maximum output
- 65,536 tokensProvider-published response limit, where available.
- Knowledge cutoff
- March 2026; some domains may lag to January 2025Latest reliable knowledge date explicitly published by the model provider. Search and connected tools can retrieve newer information but do not change the model's built-in cutoff.
- Input price
- $0.75 / 1M promoCurrent standard list price per million input tokens unless noted.
- Output price
- $3.75 / 1M promoCurrent standard list price per million output tokens unless noted.
- Inputs
- Text, image, video, audio, PDFMedia types accepted by the listed model endpoint.
- Tools & agents
- Functions, search, code execution, file searchSelected native tools and agent-building capabilities, not an exhaustive list.
Pricing & comparisons
Estimate your cost
Set your usage. Your estimate updates as you type.
Example: 6,000 input tokens for 10 pages, plus a 500-token summary. Page lengths vary; adjust the numbers below.
One run sends your input to the model once and receives an answer. Tokens are pieces of text: input is what you send, output is the answer you receive.
Advanced options
Gemini 3.8 Flash
Estimated total (USD)
For the usage above · USD · API pricing, not a subscription
- Input tokens
- $0.75 per 1M tokens
- Output tokens
- $3.75 per 1M tokens
How this estimate works
Estimates exclude taxes, tools, cache storage/writes, free allowances and custom discounts. Image estimates cover output only, not prompt or reference-image charges. Quality modes differ by model. Unlisted settings are not treated as free.
API and provider access
Where to get Gemini 3.8 Flash
Availability
Regions and access stage
Available through the Gemini API and Google AI Studio in supported regions, with Vertex and gateway routes also available.
Use Google's live available-regions list and verify feature restrictions for the selected route.
Check live availabilityData and training
The route matters.
Google says paid Gemini API prompts and responses are not used to improve its products. Unpaid-service content generally may be used, with different treatment for EEA, UK, and Swiss users; check the current terms for your account and region.
This is a concise reading of the cited provider material, not legal advice. A third-party gateway can have different storage, routing, training, and residency terms from the model maker's direct API.
Read the provider policyFrequently asked questions
Gemini 3.8 Flash FAQ
What is Gemini 3.8 Flash?
Google's stable, high-efficiency multimodal model for agents, software work, and large mixed-media inputs at an introductory Flash-tier price. Gemini 3.8 Flash combines a million-token input window with text, image, video, audio, and PDF understanding. Its native API features include function calling, code execution, search grounding, file search, and structured output.
When was Gemini 3.8 Flash released?
Gemini 3.8 Flash was released on September 2, 2026 according to the cited provider materials.
Where can I access Gemini 3.8 Flash?
Available through the Gemini API and Google AI Studio in supported regions, with Vertex and gateway routes also available. The access routes listed in this guide are Google and OpenRouter.
How much does Gemini 3.8 Flash cost?
$0.75 input · $3.75 output / 1M tokens. Introductory paid-tier price through December 31, 2026; Google lists $1.50 input and $7.50 output beginning January 1, 2027.
Where is Gemini 3.8 Flash available?
Available through the Gemini API and Google AI Studio in supported regions, with Vertex and gateway routes also available. Use Google's live available-regions list and verify feature restrictions for the selected route.
Is my Gemini 3.8 Flash API data used for training?
Google says paid Gemini API prompts and responses are not used to improve its products. Unpaid-service content generally may be used, with different treatment for EEA, UK, and Swiss users; check the current terms for your account and region. The policy belongs to the provider route and account terms, so verify it again before production use.
Price comparison
One price per model, using the same input/output mix. We weight each API rate by its share of one million total tokens and use the lowest matching reviewed route. This is a comparison rate, not a cost per task or a quality score. Tokenizers, caching, reasoning and long context can change your actual bill.
75% input + 25% output · no cache discounts
- GPT-6 Luna$0.20
OpenAI
- Mistral Small 4$0.2625
Mistral AI
- GPT-5.6 Luna$0.45
OpenAI
- Gemini 3.8 Flash$1.50
Google
This model
- Claude Haiku 4.5$2.00
Anthropic
- GPT-6 Sol$4.00
OpenAI
- Claude Sonnet 5$4.00
Anthropic
- GPT-5.6 Terra$4.50
OpenAI
- Daybreak Blue$8.00
OpenAI
- Claude Opus 5.5$8.00
Anthropic
- GPT-5.6 Sol$8.00
OpenAI
- Claude Opus 5$10.00
Anthropic
- Claude Fable 5$20.00
Anthropic
- GPT-6 Astra$20.00
OpenAI
- Claude Fable 5.1$20.00
Anthropic
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