Nano Banana Pro (Gemini 3 Pro Image Preview) vs GPT-6.1 Terra Pro

Price, context window & benchmark comparison

Nano Banana Pro (Gemini 3 Pro Image Preview)

Google

$2.00 / $12.00

Input / Output · per 1M tokens

GPT-6.1 Terra Pro

OpenAI

$1.00 / $5.00

Input / Output · per 1M tokens

Compare different models

Verdict: GPT-6.1 Terra Pro is 2.3× cheaper than Nano Banana Pro (Gemini 3 Pro Image Preview) on a typical 3:1 input/output mix. GPT-6.1 Terra Pro has the larger context window (1.1M vs 66K).

	Nano Banana Pro (Gemini 3 Pro Image Preview)	GPT-6.1 Terra Pro
Input price / 1M	$2.00	$1.00
Output price / 1M	$12.00	$5.00
Blended price (3:1)	$4.50	$2.00
Cached input / 1M	$0.20	$0.05
Context window	66K	1.1M
Max output	33K	128K
Intelligence index	—	—
Coding index	—	—
Providers	—	6
Best provider uptime (30m)	—	100.0%
Vision input	Yes	Yes
Reasoning	Yes	Yes
Tool calling	No	Yes
Released	2025-11-20	2026-10-26
Retirement	—	—

Cost calculator

Input tokens / requestOutput tokens / requestRequests / day

FAQ

Which is cheaper, Nano Banana Pro (Gemini 3 Pro Image Preview) or GPT-6.1 Terra Pro?

GPT-6.1 Terra Pro is 2.3× 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 GPT-6.1 Terra Pro: which has a bigger context window?

Nano Banana Pro (Gemini 3 Pro Image Preview): 65,536 tokens. GPT-6.1 Terra Pro: 1,050,000 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, GPT-6.1 Terra Pro ≈ $4,500.

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