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Favicon for moondream

Moondream: Moondream 3 Preview

moondream/moondream3-preview

Model weights
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Moondream 3 Preview is a vision-language model from Moondream with 9B total parameters and 2B active (mixture-of-experts). It handles visual question answering, captioning, OCR, and visual reasoning over images, with a 32K-token context and an optional reasoning mode.

Modalities
In / Out Price
$0.30 / $2.50per 1M
Context
32K
Released
Oct 15, 2026
Compare
ProvidersPricingPerformanceUptimeAppsActivityFAQExplore

Providers

This model is hosted by one provider. OpenRouter forwards every request to it directly — no routing decisions to make.

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

Performance

Throughput is how fast the model writes (tokens per second — higher is better). Latency is total round-trip time (lower is better). TTFT is time-to-first-token — how long before you see anything appear (lower is better).

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

Activity

Token volume and request traffic to this model over time.

API

Drop-in code to call this model. OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. The only thing that changes between models is the model slug below.

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$0.30$2.500.22s190 tps
100.00%
Throughput
190tok/s

P50, best across providers

Latency
0.22s

P50, best provider

Uptime (3d)The model was reachable. Request routed to a provider.
97.51%
Availability (3d)The model returned inference from any provider. Errors and empty responses count against it.
97.51%

Availability over the last 3 days

Last 72 hours
Availability 97.51%
3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability
100.00%

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and provider routing options.

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Frequently asked questions

Moondream 3 Preview is a vision-language model from Moondream with 9B total parameters and 2B active (mixture-of-experts). It handles visual question answering, captioning, OCR, and visual reasoning over images, with a 32K-token context and an optional reasoning mode.

Moondream 3 Preview costs $0.30/M input tokens and $2.50/M output tokens.

Moondream 3 Preview has a 32,000 token context window. It supports up to 4,096 completion tokens.

No. Moondream 3 Preview does not accept tools, so function calling is unavailable. It does not support response_format, so JSON output is not enforced.

Moondream 3 Preview accepts text and images as input and returns text.

Moondream 3.1 is another text model from Moondream.

Moondream 3 Preview was released on October 15, 2026.

More models from Moondream

Moondream 3.1

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). It handles visual question answering, captioning, OCR, and visual reasoning over images, with a 32K-token context and an optional reasoning mode.

Text32K context$0.30 / $2.50