Question 1

How much does Gemini 3.1 Pro cost?

Accepted Answer

Gemini 3.1 Pro costs $2 per 1 million input tokens and $12 per 1 million output tokens. This pricing is set by Google.

Question 2

What tokenizer does Gemini 3.1 Pro use?

Accepted Answer

Gemini 3.1 Pro uses the cl100k_base tokenizer. This tokenizer has a vocabulary of ~100,000 tokens and is widely used across many models.

Question 3

What is Gemini 3.1 Pro's context window?

Accepted Answer

Gemini 3.1 Pro supports a context window of 1.0M tokens (1,048,576 tokens). The maximum output length is 66K tokens.

Question 4

How does Gemini 3.1 Pro compare to other models?

Accepted Answer

You can compare Gemini 3.1 Pro's pricing and capabilities against other LLMs in the comparison table above, or visit the full pricing page for a side-by-side view of all models.

Question 5

How do I count tokens for Gemini 3.1 Pro?

Accepted Answer

Use the token counter at the top of this page or visit the homepage calculator. Paste your text and it will show the exact token count and cost for Gemini 3.1 Pro using the cl100k_base tokenizer.

Model	Input / 1M	Output / 1M	Context	Max Output
Gemini 3.1 Pro	$2	$12	1.0M	66K
Gemini 3 Pro	$2	$12	1.0M	66K
GPT-4o	$2.5	$10	128K	16K
Command A	$2.5	$10	128K	4K

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