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by Google DeepMind

Google: Gemini 3.1 Flash Lite Preview.

multimodal closed 1M ctx
Cheapest input
$0.25/M
on OpenRouter
Cheapest output
$1.5/M
on OpenRouter
Fastest
42 tok/s
on OpenRouter
Hosted equiv.
~$0.54/hr
@ 100 tok/s on OpenRouter

Gemini 3.1 Flash Lite Preview is Google's high-efficiency model optimized for high-volume use cases. It outperforms Gemini 2.5 Flash Lite on overall quality and approaches Gemini 2.5 Flash performance across...

Hosted API only

No self-host path — closed weights.

Google: Gemini 3.1 Flash Lite Preview's weights aren't published. Use it via the access providers below.

Where to use it

Cheapest hosted endpoints.

Provider Access $/M in $/M out
OpenRouter api aggregator $0.25 $1.5 Launch ↗
Performance

Speed across providers.

Tokens/sec and time-to-first-token measured against the same prompt template on each provider's API.

Provider Tokens/sec TTFT Total
OpenRouter 41.8 1334 ms 2152 ms
FAQ

Frequently asked.

How do I run Google: Gemini 3.1 Flash Lite Preview?
Google: Gemini 3.1 Flash Lite Preview is a closed-source API model. The cheapest way to access it is through the API providers listed on this page (direct API, aggregators, and hosted chat UIs).
Where can I access Google: Gemini 3.1 Flash Lite Preview?
Google: Gemini 3.1 Flash Lite Preview is available via OpenRouter. Each access option lists its own pricing (per million tokens or hourly hosting).
How much does it cost to run Google: Gemini 3.1 Flash Lite Preview?
API pricing starts at $0.25/M input tokens and $1.5/M output tokens. Self-hosting cost depends on the GPU you rent — see the Run It Yourself tab.
Is Google: Gemini 3.1 Flash Lite Preview open-source or proprietary?
Google: Gemini 3.1 Flash Lite Preview is a proprietary model from Google DeepMind. Access is API-only — there are no public weights to download.