Gemini 3.5 Flash Lite

Gemini 3.5 Flash Lite API offers sub-second latency and a massive 1M token context window. Optimized for high-frequency tasks, this Google model provides multimodal support and elite JSON extraction at a fraction of the cost of standard models.

Modalities

Context

API Usage Examples

curl --request POST "https://gptproto.com/v1/chat/completions" \
  --header "Authorization: Bearer $GPTPROTO_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
    "model": "gemini-3.5-flash-lite",
    "messages": [
      {
        "role": "user",
        "content": "Hello"
      }
    ]
  }'

Gemini 3.5 Flash Lite pricing

Estimate a request with real work scenarios. GPTProto token pricing is 40% below official rates.

UsageQuantityRateCost

Input tokens($0.18/1M)

tokens

$0.18/1M$0.0002

Output tokens($1.5/1M)

tokens

$1.5/1M$0.0011

Cache write tokens($0.6/1M)

tokens

$0.6/1M$0.0018

Cache read tokens($0.018/1M)

tokens

$0.018/1M$0.0004

Cost per request$0.0037

Requests

Top-up amount

Top-up $100 and you get:

Top-up credits with permanent validity. You will receive a total of $100.00.

Additional 40% model discount, saving $66.6621 versus direct official Google API calls.

Related Models

All Models

Gemini 3.5 Flash Lite

Current

byGoogle1.05M context$0.18/M input$1.5/M output

GPT 6 Astra

byOpenAI$8/M input$40/M output

Gemini 3.8 Flash

byGoogle1.05M context$0.9/M input$4.5/M output

Claude Fable 5.1

byClaude1M context$9/M input$45/M output

Qwen3.8 Max 0902

byQwen$1.8/M input$5.4/M output

GLM 5.3 Flash

byZ-AI1.31M context$0.15/M input$0.5/M output

DeepSeek v4 Flash Vision Exp

byDeepSeek1.05M context$0.44/M input$1.32/M output

GLM 5.3

byZ-AI1.31M context$1.26/M input$3.96/M output

Gemini 3.7 Flash

byGoogle1.05M context$0.9/M input$4.5/M output

Grok 4.6

byGrok500K context$1.2/M input$3.6/M output

Qwen3.8 Max

byQwen1M context$1.8/M input$5.4/M output

Claude Opus 5

byClaude1M context$4.5/M input$22.5/M output

Gemini 3.6 Flash

byGoogle1.05M context$0.9/M input$4.5/M output

Kimi K3

byMoonshotAI1.05M context$2.7/M input$13.5/M output

GPT 5.6 Luna

byOpenAI1.05M context$0.16/M input$0.96/M output

GPT 5.6 Terra

byOpenAI1.05M context$1.6/M input$9.6/M output

Grok 4.5

byGrok500K context$1.2/M input$3.6/M output

Claude Sonnet 5

byClaude1M context$1.8/M input$9/M output

MiniMax M3

byMiniMax1.05M context$0.48/M input$0.96/M output

GLM 5.2

byZ-AI1.05M context$1.26/M input$3.96/M output

Qwen3.7 Max

byQwen1M context$0.36/M input$1.44/M output

Gemini 3.5 Flash

byGoogle1.05M context$0.9/M input$5.4/M output

DeepSeek v4 Flash

byDeepSeek1.05M context$0.44/M input$1.32/M output

DeepSeek v4 Pro

byDeepSeek1.05M context$1.32/M input$3.96/M output

Grok 4.3

byGrok1M context$0.75/M input$1.5/M output

Kimi K2.6

byMoonshotAI262K context$0.855/M input$3.6/M output

Gemini 3.1 Flash Lite Preview

byGoogle1.05M context$0.15/M input$0.9/M output

MiniMax M2.5

byMiniMax205K context$0.24/M input$0.96/M output

Gemini 3.1 Pro Preview

byGoogle1.05M context$1.2/M input$7.2/M output

Kimi K2.5

byMoonshotAI262K context$0.54/M input$2.7/M output

Doubao Seed 1.6 Thinking (Build 250715)

byBytedance262K context$0.0971/M input$0.9714/M output

Doubao Seed 1.6 Thinking (Build 250615)

byBytedance262K context$0.0971/M input$0.9714/M output

Doubao Seed 1.6 Flash (Build 250615)

byBytedance262K context$0.0182/M input$0.1821/M output

Model					Input → Output
Gemini 3.5 Flash LiteCurrent $		1.05M	$0.18 / $1.50 per 1M	$0.60 / $0.02 per 1M	Input: TextInput: ImageInput: Document Output: Text
GPT 6 Astra $		—	$8.00 / $40.00 per 1M	$10.00 / $0.80 per 1M	Input: TextInput: ImageInput: Document Output: Text
Gemini 3.8 Flash $		1.05M	$0.90 / $4.50 per 1M	$0.60 / $0.09 per 1M	Input: TextInput: ImageInput: VideoInput: DocumentInput: Audio Output: Text
Claude Fable 5.1 $		1M	$9.00 / $45.00 per 1M	$11.25 / $0.23 per 1M	Input: TextInput: ImageInput: Document Output: Text
Qwen3.8 Max 0902 $		—	$1.80 / $5.40 per 1M	$2.25 / $0.23 per 1M	Input: TextInput: ImageInput: VideoInput: DocumentInput: Audio Output: Text
GLM 5.3 Flash $	—	1.31M	$0.15 / $0.50 per 1M	— / $0.03 per 1M	Input: TextInput: ImageInput: VideoInput: Document Output: Text
DeepSeek v4 Flash Vision Exp $	—	1.05M	$0.44 / $1.32 per 1M	— / $0.01 per 1M	Input: TextInput: Image Output: Text
GLM 5.3 $		1.31M	$1.26 / $3.96 per 1M	— / $0.23 per 1M	Input: TextInput: ImageInput: Document Output: Text
Gemini 3.7 Flash $		1.05M	$0.90 / $4.50 per 1M	$0.60 / $0.09 per 1M	Input: TextInput: ImageInput: Document Output: Text
Grok 4.6 $		500K	$1.20 / $3.60 per 1M	— / $0.30 per 1M	Input: TextInput: Image Output: Text
Qwen3.8 Max $		1M	$1.80 / $5.40 per 1M	$2.25 / $0.23 per 1M	Input: TextInput: ImageInput: VideoInput: Document Output: Text
Claude Opus 5 $		1M	$4.50 / $22.50 per 1M	$5.63 / $0.45 per 1M	Input: TextInput: ImageInput: Document Output: Text
Gemini 3.6 Flash $		1.05M	$0.90 / $4.50 per 1M	$0.60 / $0.09 per 1M	Input: TextInput: ImageInput: Document Output: Text
Kimi K3 $		1.05M	$2.70 / $13.50 per 1M	$0.27 / $0.27 per 1M	Input: TextInput: ImageInput: Document Output: Text
GPT 5.6 Luna $		1.05M	$0.16 / $0.96 per 1M	$0.20 / $0.02 per 1M	Input: TextInput: ImageInput: Document Output: Text
GPT 5.6 Terra $		1.05M	$1.60 / $9.60 per 1M	$2.00 / $0.16 per 1M	Input: TextInput: ImageInput: Document Output: Text
Grok 4.5 $		500K	$1.20 / $3.60 per 1M	$0.30 / $0.30 per 1M	Input: TextInput: Image Output: Text
Claude Sonnet 5 $		1M	$1.80 / $9.00 per 1M	$2.25 / $0.18 per 1M	Input: TextInput: Document Output: Text
MiniMax M3 $		1.05M	$0.48 / $0.96 per 1M	$0.10 / $0.10 per 1M	Input: TextInput: ImageInput: Document Output: Text
GLM 5.2 $		1.05M	$1.26 / $3.96 per 1M	$0.23 / $0.23 per 1M	Input: TextInput: ImageInput: Document Output: Text
Qwen3.7 Max $		1M	$0.36 / $1.44 per 1M	$0.07 / $0.07 per 1M	Input: TextInput: Document Output: Text
Gemini 3.5 Flash $		1.05M	$0.90 / $5.40 per 1M	$0.60 / $0.09 per 1M	Input: TextInput: ImageInput: Document Output: Text
DeepSeek v4 Flash $	—	1.05M	$0.44 / $1.32 per 1M	— / $0.01 per 1M	Input: Text Output: Text
DeepSeek v4 Pro $	—	1.05M	$1.32 / $3.96 per 1M	— / $0.04 per 1M	Input: Text Output: Text
Grok 4.3 $		1M	$0.75 / $1.50 per 1M	$0.12 / $0.12 per 1M	Input: TextInput: Image Output: Text
Kimi K2.6 $		262K	$0.85 / $3.60 per 1M	$0.14 / $0.14 per 1M	Input: TextInput: Document Output: Text
Gemini 3.1 Flash Lite Preview $		1.05M	$0.15 / $0.90 per 1M	$0.60 / $0.01 per 1M	Input: TextInput: ImageInput: Document Output: Text
MiniMax M2.5 $		205K	$0.24 / $0.96 per 1M	$0.30 / $0.02 per 1M	Input: TextInput: Document Output: Text
Gemini 3.1 Pro Preview $		1.05M	$1.20 / $7.20 per 1M	$2.70 / $0.12 per 1M	Input: TextInput: ImageInput: Document Output: Text
Kimi K2.5 $		262K	$0.54 / $2.70 per 1M	$0.09 / $0.09 per 1M	Input: TextInput: Document Output: Text
Doubao Seed 1.6 Thinking (Build 250715) $		262K	$0.10 / $0.97 per 1M	—	Input: TextInput: Image Output: Text
Doubao Seed 1.6 Thinking (Build 250615) $		262K	$0.10 / $0.97 per 1M	—	Input: TextInput: Image Output: Text
Doubao Seed 1.6 Flash (Build 250615) $		262K	$0.02 / $0.18 per 1M	—	Input: TextInput: Image Output: Text

Key Gemini 3.5 Flash Lite API Capabilities

Explore the core technical strengths of the Gemini 3.5 Flash Lite API, from its massive memory to its industry-leading speed, designed specifically for high-efficiency enterprise deployments.

Sub-100ms Response Speed

Optimized for an instant-feel, the model delivers a Time To First Token approximately 30-40% faster than standard versions, ensuring smooth user experiences in chat and real-time tools.

1M Token Massive Context

Ingest entire technical manuals or legal archives at once. The signature 1M context window allows for large-scale RAG and deep document analysis at a fraction of the price of larger models.

Native Multimodal Support

Process images, video up to one hour, audio, and PDFs natively. Gemini 3.5 Flash-Lite achieves a 68.2% score on MMMU benchmarks, outperforming many text-only lite competitors significantly.

Structured JSON Reliability

Features an optimized internal head for schema adherence, resulting in a 98% success rate on complex nested extraction. Perfect for converting unstructured data into actionable insights.

Gemini 3.5 Flash Lite API: Common Questions

Get details on the Gemini 3.5 Flash Lite API. Learn about latency, the 1M context window, pricing, and how this model compares to others in the 3.5 family for building responsive AI applications.

What is the typical latency of the Flash Lite model?

Gemini 3.5 Flash-Lite is optimized for instant-feel applications. It delivers a Time To First Token (TTFT) that is roughly 30-40% faster than the standard Flash model on text-only prompts. For most short queries, you can expect a response within 100-200ms, making it ideal for interactive chatbots and real-time translation where latency is the most critical factor for ensuring a smooth and responsive user experience.

How large is the Gemini 3.5 Flash Lite context window?

This model features a massive 1,048,576 token context window. This allows you to process enormous amounts of data—such as hour-long videos, large codebases, or hundreds of documents—in a single request. This high efficiency enables large-scale Retrieval-Augmented Generation (RAG) at a significantly lower price point than larger models, without needing to constantly truncate or summarize your input data before processing.

What is the pricing for the Gemini 3.5 Flash Lite API?

The pricing is highly competitive at $0.075 per 1M input tokens and $0.30 per 1M output tokens. It is approximately 50% cheaper than the standard Gemini 3.5 Flash. Additionally, we offer a 50% discount on cached input tokens. This makes it the most cost-effective model per token in the entire Gemini 3.5 family, perfect for high-volume data labeling, classification, or massive document summarization pipelines.

Does this lite model support multimodal inputs?

Yes. Unlike many competitors that offer text-only lite versions, this model natively supports multimodal inputs including images, video (up to 1 hour), audio, and PDF files. It achieves an impressive 68.2% on the MMMU benchmark. This capability allows you to build sophisticated applications that can search video archives, index image libraries, or analyze complex technical documents containing charts and graphs effortlessly.

How does it compare to GPT-4o-mini?

While GPT-4o-mini is strong in reasoning, Gemini 3.5 Flash-Lite offers a much larger context window (1M vs 128k) and lower latency (120ms vs 180ms). It is also roughly 50% cheaper on input tokens. For tasks like large-scale document summarization, high-volume classification, or multimodal processing, Gemini 3.5 Flash-Lite provides a superior balance of speed, capacity, and cost-efficiency for modern developers.

Is my data used to train the Gemini models?

No. We take data privacy seriously. Any data you send via the GPTProto.com platform to the Gemini 3.5 Flash-Lite API is not used to train the underlying foundation models. We provide a unified OpenAI-compatible endpoint with consolidated billing and automatic failover across multiple Google Cloud regions to ensure higher uptime, allowing you to build enterprise-grade applications with full confidence in your data security.