What is Moondream: Moondream 3.1's context window?

Moondream: Moondream 3.1 accepts up to 32,000 tokens in a single request, and can return up to 4,096 output tokens.

Is there a cheaper OpenRouter model than Moondream: Moondream 3.1?

Yes. Free Models Router is free per 1M input tokens versus $0.300 for Moondream: Moondream 3.1, with a 200,000 token context window.

Where does this Moondream: Moondream 3.1 price come from?

From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Moondream: Moondream 3.1 pricing

Moondream 3.1 is a vision-language model from Moondream, the successor to Moondream 3 Preview, with 9B total parameters and 2B active (mixture-of-experts). Moondream: Moondream 3.1 from OpenRouter costs $0.300 per 1M input tokens and $2.50 per 1M output tokens. Context window 32,000 tokens.

API id moondream/moondream3.1-9b-a2b · OpenRouter · source · updated 2026-11-10 · general-purpose

$0.300

Input / 1M tokens

$2.50

Output / 1M tokens

—

Cached input / 1M

32K

Context window

Moondream: Moondream 3.1 specifications

Provider: OpenRouter
API id: moondream/moondream3.1-9b-a2b
Model type: general-purpose
Context window: 32K tokens
Max output: 4K tokens
Currency: USD
Price source: Provider API
Last checked: 2026-11-10

What Moondream: Moondream 3.1 costs in practice

Estimated cost at common usage volumes
Workload	Input tokens	Output tokens	Estimated cost
Short chat turn	1,000	500	$0.0015
Document summary	50,000	2,000	$0.02
1M tokens in, 200K out	1,000,000	200,000	$0.80

Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.

Common questions

How much does Moondream: Moondream 3.1 cost per 1M tokens?: Moondream: Moondream 3.1 costs $0.300 per 1M input tokens and $2.50 per 1M output tokens on the standard tier.
What is Moondream: Moondream 3.1's context window?: Moondream: Moondream 3.1 accepts up to 32,000 tokens in a single request, and can return up to 4,096 output tokens.
Is there a cheaper OpenRouter model than Moondream: Moondream 3.1?: Yes. Free Models Router is free per 1M input tokens versus $0.300 for Moondream: Moondream 3.1, with a 200,000 token context window.
Where does this Moondream: Moondream 3.1 price come from?: From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Head-to-head comparisons

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Moondream: Moondream 3.1 specifications

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What Moondream: Moondream 3.1 costs in practice

Common questions

Head-to-head comparisons

Other OpenRouter models