Nano Banana Pro (Gemini 3 Pro Image Preview) vs Kimi K3.1 Pro

Price, context window & benchmark comparison

Nano Banana Pro (Gemini 3 Pro Image Preview)

Google

$2.00 / $12.00

Input / Output · per 1M tokens

Kimi K3.1 Pro

Moonshot AI

$2.00 / $10.00

Input / Output · per 1M tokens

Compare different models

Verdict: Kimi K3.1 Pro is 11% cheaper than Nano Banana Pro (Gemini 3 Pro Image Preview) on a typical 3:1 input/output mix. Kimi K3.1 Pro has the larger context window (1M vs 66K).

	Nano Banana Pro (Gemini 3 Pro Image Preview)	Kimi K3.1 Pro
Input price / 1M	$2.00	$2.00
Output price / 1M	$12.00	$10.00
Blended price (3:1)	$4.50	$4.00
Cached input / 1M	$0.20	$0.20
Context window	66K	1M
Max output	33K	944K
Intelligence index	—	46.5
Coding index	—	—
Providers	—	23
Best provider uptime (30m)	—	100.0%
Vision input	Yes	Yes
Reasoning	Yes	Yes
Tool calling	No	Yes
Released	2025-11-20	2026-10-23
Retirement	—	—

Cost calculator

Input tokens / requestOutput tokens / requestRequests / day

FAQ

Which is cheaper, Nano Banana Pro (Gemini 3 Pro Image Preview) or Kimi K3.1 Pro?

Kimi K3.1 Pro is 11% cheaper than Nano Banana Pro (Gemini 3 Pro Image Preview) on a typical 3:1 input/output mix.

Nano Banana Pro (Gemini 3 Pro Image Preview) vs Kimi K3.1 Pro: which has a bigger context window?

Nano Banana Pro (Gemini 3 Pro Image Preview): 65,536 tokens. Kimi K3.1 Pro: 1,048,576 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Nano Banana Pro (Gemini 3 Pro Image Preview) ≈ $10,000, Kimi K3.1 Pro ≈ $9,000.

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