Gemini 3.5 Flash Lite API Proxy 2026 Integration and Pricing Guide

The release date of Gemini 3.5 Flash Lite is pending hands-on testing. The model is positioned for low-cost multimodal calls and can be used for sub-agent task execution and document parsing. This article summarizes the known proxy-side pricing, group multipliers, and items to confirm before integration.

What's new: Current Model and Pricing Information

Gemini 3.5 Flash Lite has appeared in the proxy's list of models available for purchase, with the model ID gemini-3.5-flash-lite.
The benchmark price is $0.3 / 100 万 tokens for input, $2.5 / 100 万 tokens for output, and $0.03 / 100 万 tokens for cache hits.
The final price is calculated as “benchmark price × the multiplier for the user's group.” Confirm the account's group before making calls.
The platform has 452 models available for purchase. The public list includes only the 150 models with relatively high call volumes; models not listed are not necessarily unavailable.
The pricing data comes from the dashboard pricing API and was retrieved at 2026-08-04T16:16:08Z.

OpenLux

What is Gemini 3.5 Flash Lite API proxy?

The idea is simple — collapse several vendor APIs into one standard interface, so you integrate once and switch models by changing a parameter.

Going direct to Gemini 3.5 Flash Lite means maintaining vendor-specific auth, vendor-specific error handling, and a separate billing relationship for each provider.

OpenLux runs this layer as a hosted service: OpenLux official site aggregates 452 (total models available) major models behind one OpenAI-compatible endpoint, with a single API key and a single invoice.

Supported models and pricing

Model	Use cases	Context	Input price	Output price	Measured time to first token
gemini-3.5-flash-lite	Low-cost sub-agent task execution, document parsing, and multimodal input processing	Pending hands-on testing	$0.3 / 100 万 tokens (benchmark price)	$2.5 / 100 万 tokens (benchmark price)	Pending hands-on testing

Pricing on visit the site is authoritative; this page was updated 2026-08-05.

Why route through a gateway?

Designed for high-volume workloads：The model description positions it as a cost-efficient model for high-capacity Agent workflows, making it suitable for delegating decomposable tasks to sub-agents.
Supports multimodal inputs：Available documentation indicates that the model supports text, image, video, audio, and PDF inputs, making it suitable for workflows involving documents and multimedia assets.
Suitable for document parsing：The model description explicitly mentions document parsing, making it a candidate for document content extraction, organization, or downstream processing pipelines.
Benchmark pricing can be verified：The benchmark unit prices for input, output, and cache hits are listed in the dashboard pricing API; actual billing must be confirmed based on the account's group multiplier.
Unified access through a multi-model catalog：The proxy currently has 452 models available for purchase, making it suitable for development workflows that need to switch between different providers and model types.

All of the above is live on OpenLux — sign up and verify it yourself.

Get started

Confirm the account group and integration documentation first, then validate Gemini 3.5 Flash Lite with a small request

Get a free API key

Official site: see the docs

Last updated 2026-08-05　|　Written and maintained by OpenLux.
Latency and pricing figures come from our own measurements. Where they differ from the vendor's site, the vendor's live page wins.