Gemini 3.5 Flash
⧉Gemini 3.5 Flash is the next-generation fast model from Google with built-in thinking: fast and cost-efficient, for high-volume chat and agent workloads. Fully OpenAI-API compatible: set model to gemini-3.5-flash.
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About Gemini 3.5 Flash
Gemini 3.5 Flash is Google's new-generation high-speed thinking model that pairs low latency and high concurrency with an explicit thinking (reasoning) step, making it well suited to conversations and processing tasks that need both speed and some logical reasoning. On NezhaGate it is served through an OpenAI-compatible endpoint: point your base_url at NezhaGate and set the model parameter to "gemini-3.5-flash" to reuse your existing OpenAI SDK code, with pay-as-you-go billing where failed requests are not charged.
Use cases
Power customer-support bots and Q&A assistants that need low-latency replies and stable behavior under heavy traffic.
Use the thinking step for tasks that need simple logical inference — classification, conditional decisions, multi-step Q&A — without reaching for a heavier flagship model.
Summarize, rewrite, extract, or classify large volumes of documents, using high throughput and pay-as-you-go billing to keep unit costs in check.
Act as a fast decision node inside tool-calling and multi-turn orchestration loops to cut the wait at every step.
Stand up conversational features quickly during validation, then switch cleanly to a balanced or flagship model when needed.
How to choose
Pick Gemini 3.5 Flash when you want a balance of speed, cost, and some reasoning: it is faster and cheaper than the flagship Gemini 3.1 Pro, yet adds an explicit thinking step over the more speed-only Gemini 3 Flash and Gemini 2.5 Flash. Reach for Gemini 3.1 Pro when a task needs the deepest reasoning, step up to Gemini 3.6 Flash for a newer fast thinking model, or compare GPT-5.6 Luna if you prefer a fast model from the OpenAI ecosystem.
FAQ
What is Gemini 3.5 Flash?
Does Gemini 3.5 Flash support streaming?
How do I call Gemini 3.5 Flash with the OpenAI SDK?
What is Gemini 3.5 Flash best for?
Gemini 3.5 Flash vs Gemini 3 Flash — how do I choose?
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