Models

Nano Banana 2 (Gemini 3.1 Flash Image Preview)

google ↗ · 66K ctx · 2 providers · updated 2026-08-17 15:21 UTC

Cheapest
$1.13 via OpenRouter
Avg price
$8.25 /1M
providers
2
(3 × $0.500 + $3.00) ÷ 4 = $1.13/1M — the $/1M figure blends input and output at 3:1 — that is the only way models with two different rates can be ranked on one axis. Your actual rate depends on your own input:output mix — input only $0.500, 3:1 $1.13, 1:1 $1.75, output only $3.00 per 1M.

The board shows this model's cheapest measured offer ($1.13/1M); the smaller figure under it is the mean of the 2 offers listed below ($8.25/1M). Add those up and divide — it matches.

ProviderRouter / Source$ in /1M$ out /1MTTFTTPSUptimeEvidence
openrouter-best OpenRouter $0.500$3.00 API-measured
burncloud burncloud $0.500$60.00 API-measured

Price trend

Cheapest blended price, last 31 days (USD/1M): $0.875 → $0.875 → $0.875 → $0.875 → $0.875 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125 → $1.125

Data & method

Cheapest ranked by blended = (3×in + out) ÷ 4; performance columns show only when a source provides them, never estimated. “Official list” = LiteLLM open pricebook (MIT); “API-measured” = provider/aggregator public APIs. Machine-readable data: /api/v1/models/gemini-3.1-flash-image-preview.json. Free reuse requires attribution to tkx.org.

FAQ

How much does Nano Banana 2 (Gemini 3.1 Flash Image Preview) cost?

Cheapest measured offer right now: $0.5/1M input, $3/1M output via openrouter-best — across 2 tracked providers, refreshed hourly.

Who serves Nano Banana 2 (Gemini 3.1 Flash Image Preview)?

2 providers currently serve it. The table above lists each with input/output price, TTFT, TPS, uptime and an evidence tier.

Is the price of Nano Banana 2 (Gemini 3.1 Flash Image Preview) going up or down?

The daily candles above track the cheapest blended price ($/1M, 3:1 in:out). TKX snapshots every hour, so drops and hikes show up the same day they happen.

Related analysis

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