Nano Banana 2.1 vs GPT-5.6 Luna

Price, context window & benchmark comparison

Google

Nano Banana 2.1

Google
$1.50 / $7.50
Input / Output · per 1M tokens
VS
OpenAI

GPT-5.6 Luna

OpenAI
$0.20 / $1.20
Input / Output · per 1M tokens
Compare different models
Google
OpenAI
Verdict: GPT-5.6 Luna is 6.7× cheaper than Nano Banana 2.1 on a typical 3:1 input/output mix. GPT-5.6 Luna has the larger context window (1.1M vs 66K).
Nano Banana 2.1GPT-5.6 Luna
Input price / 1M$1.50$0.20
Output price / 1M$7.50$1.20
Blended price (3:1)$3.00$0.45
Cached input / 1M—$0.02
Context window66K1.1M
Max output59K128K
Intelligence index—23.8
Coding index—71.4
Providers17
Best provider uptime (30m)100.0%100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-10-062026-07-09
Retirement——

Cost calculator

FAQ

Which is cheaper, Nano Banana 2.1 or GPT-5.6 Luna?

GPT-5.6 Luna is 6.7× cheaper than Nano Banana 2.1 on a typical 3:1 input/output mix.

Nano Banana 2.1 vs GPT-5.6 Luna: which has a bigger context window?

Nano Banana 2.1: 65,536 tokens. GPT-5.6 Luna: 1,050,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Nano Banana 2.1 ≈ $6,750, GPT-5.6 Luna ≈ $1,000.

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