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gemini-3.1-flash-lite API pricing & access

gemini-3.1-flash-lite API pricing: $0.5 per 1M tokens. gemini-3.1-flash-lite. Supports text, image, video, audio, file input and text output. Lis…

gemini-3.1-flash-lite API access

gemini-3.1-flash-lite. Supports text, image, video, audio, file input and text output. Listed specifications follow public vendor documentation. Available features and limits depend on the selected serving channel.

Compare supported API endpoints and capabilities, then access gemini-3.1-flash-lite through the unified API gateway.

Category
text
Context length
1048576 tokens
Maximum output
65536 tokens
Supported APIs
Gemini API, OpenAI Chat Completions API, Anthropic Messages API
API endpoints
POST /v1beta/models/gemini-3.1-flash-lite:generateContent, POST /v1/chat/completions, POST /v1/messages
Input modalities
text, image, video, audio, file
Output modalities
text
Capabilities
function calling, structured output, reasoning, caching, vision

gemini-3.1-flash-lite API pricing

Base input price
$0.5 per 1M tokens
Base output price
$1.5 per 1M tokens

Base prices are shown in USD before group-specific adjustments. Open the live pricing page for current access-group prices.

About gemini-3.1-flash-lite

gemini-3.1-flash-lite is a stable multimodal model for frequent lightweight tasks, taking text, images, video, audio and PDFs and returning text. Documented examples include translation, extraction, summaries and task routing.

Audio understanding is distinct from speech generation and Live sessions, and computer use is not listed. Compare translation fidelity, field accuracy and observed latency instead of treating Lite as a performance guarantee.

Official reference, checked 2026-10-14.

Use cases and prompting

  1. Set the target language, terminology and a translation-only output requirement.
  2. Define field types, null values and boundary examples and validate the resulting object.
  3. Limit task routing to predefined labels and inspect misrouted complex tasks.
  4. Compare the same test cases with gemini-3.5-flash-lite; check request and response formats in the API documentation.

How to call gemini-3.1-flash-lite

gemini-3.1-flash-lite is served through tbuy's unified gateway. Existing OpenAI or Anthropic SDK code keeps working: point base_url at https://modelsok.com and use your tbuy API key.

curl (OpenAI-compatible)

curl https://modelsok.com/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "gemini-3.1-flash-lite", "messages": [{"role": "user", "content": "Hello"}]}'

Python (openai SDK)

from openai import OpenAI

client = OpenAI(base_url="https://modelsok.com/v1", api_key="YOUR_API_KEY")
response = client.chat.completions.create(
    model="gemini-3.1-flash-lite",
    messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)

Python (anthropic SDK)

from anthropic import Anthropic

client = Anthropic(base_url="https://modelsok.com", api_key="YOUR_API_KEY")
message = client.messages.create(
    model="gemini-3.1-flash-lite",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello"}],
)
print(message.content[0].text)

Frequently asked questions about gemini-3.1-flash-lite

What is gemini-3.1-flash-lite?

gemini-3.1-flash-lite. Supports text, image, video, audio, file input and text output. Listed specifications follow public vendor documentation. Available features and limits depend on the selected serving channel.

How do I call gemini-3.1-flash-lite?

Create an API key with access to gemini-3.1-flash-lite, then use the exact model ID and a supported endpoint from the API access section. Request fields depend on the selected endpoint.

How is gemini-3.1-flash-lite priced?

Pricing depends on the selected provider group and the model billing unit. Refer to the current input, output, request, or media prices in the pricing section.

What is the context window of gemini-3.1-flash-lite?

The model catalog lists a context window of 1048576 tokens. Check the selected endpoint for request limits.

What is the maximum output of gemini-3.1-flash-lite?

The model catalog lists a maximum output of 65536 tokens. Your request settings may set a lower limit.

How should I evaluate gemini-3.1-flash-lite for my project?

Start with the use cases and prompting guidance on this page, then evaluate the model with representative inputs from your project.

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