Gemini 3.1 Pro Preview vs Llama Guard 4 12B

Price, context window & benchmark comparison

Gemini 3.1 Pro Preview

Google

$2.00 / $12.00

Input / Output · per 1M tokens

Llama Guard 4 12B

Meta Llama

$0.18 / $0.18

Input / Output · per 1M tokens

Compare different models

Verdict: Llama Guard 4 12B is 25.0× cheaper than Gemini 3.1 Pro Preview on a typical 3:1 input/output mix. Gemini 3.1 Pro Preview has the larger context window (1M vs 164K).

	Gemini 3.1 Pro Preview	Llama Guard 4 12B
Input price / 1M	$2.00	$0.18
Output price / 1M	$12.00	$0.18
Blended price (3:1)	$4.50	$0.18
Cached input / 1M	$0.20	—
Context window	1M	164K
Max output	66K	16K
Intelligence index	—	—
Coding index	68.8	—
Providers	—	3
Best provider uptime (30m)	—	100.0%
Vision input	Yes	Yes
Reasoning	Yes	No
Tool calling	Yes	No
Released	2026-02-19	2025-04-30
Retirement	—	—

Cost calculator

Input tokens / requestOutput tokens / requestRequests / day

FAQ

Which is cheaper, Gemini 3.1 Pro Preview or Llama Guard 4 12B?

Llama Guard 4 12B is 25.0× cheaper than Gemini 3.1 Pro Preview on a typical 3:1 input/output mix.

Gemini 3.1 Pro Preview vs Llama Guard 4 12B: which has a bigger context window?

Gemini 3.1 Pro Preview: 1,048,576 tokens. Llama Guard 4 12B: 163,840 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Gemini 3.1 Pro Preview ≈ $10,000, Llama Guard 4 12B ≈ $450.00.

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