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Gemini 3 Flash Preview

google/gemini-3-flash-previewPOST /v1/chat/completions

Gemini 3 Flash Preview is a high speed, high value thinking model designed for agentic workflows, multi turn chat, and coding assistance. It delivers near Pro level reasoning and tool...

Extended reasoningVisionTool callingStructured outputStreamingPrompt caching
Input / 1M
$0.5000
via OpenRouter
Output / 1M
$3.00
via OpenRouter
Cached input / 1M
$0.0500
on a cache hit
Context
1.0M
max out 66K
Providers
1
single route

1 provider serves this model

Multigrid picks between them on every request using your policy. Each price is what that route costs us, and we add no spread of our own to it.

ProviderUpstream model idIn / 1MOut / 1MBilling
OpenRoutergoogle/gemini-3-flash-preview$0.5000$3.00Credit
This model is reached through OpenRouter, and the rate reflects that

We hold no direct key for google, so every route above goes through OpenRouter. We do not buy tokens from them — we buy their credit, and a dollar of it costs $1.055. The rate shown here is their price with that 5.5% included, because that is what the route costs us. We add nothing on top of it.

The consequence, plainly: for this model we cannot be cheaper than OpenRouter. Their fee sits underneath ours. What you get here instead is one balance and one key across the whole catalogue, failover, spend caps and the audit trail — and if you already hold a google contract, bring that key and we take nothing at all.

No performance data published yet
Time to first token, throughput and uptime are measurements, and Multigrid has not served enough traffic through Gemini 3 Flash Preview to publish honest ones. When it has, they will appear here per provider, taken from real requests. Nothing on this page is estimated: prices, context window and capabilities all come from the provider’s own documentation.

Call it

Same request shape as every other model in the catalogue.

example.ts
const res = await client.chat.completions.create({
  model: "google/gemini-3-flash-preview",
  messages: [{ role: "user", content: "Hello" }],
  reasoning: { effort: "medium" },
});

Send Gemini 3 Flash Preview a real request

Signing up takes no card and commits you to nothing — you start at a zero balance, so nothing can be charged until you decide to add credit. The playground opens on Gemini 3 Flash Preview and prices every answer as it arrives, at the rate shown above — what the route costs us, with nothing of ours added. Already have an account? The second button skips the form.

Gemini 3 Flash Preview — API and pricing · Multigrid