How do I use Moondream models through the OpenRouter API?

OpenRouter serves 2 Moondream models behind one OpenAI-compatible API. Create an OpenRouter API key, point your client at https://openrouter.ai/api/v1, and set the model to an ID such as moondream/moondream3-preview. The quickstart has request examples for every supported SDK.

Which Moondream model has the largest context window?

Moondream 3 Preview has the largest context window of any Moondream model on OpenRouter, accepting up to 32,000 tokens per request.

What is the newest Moondream model on OpenRouter?

Moondream 3 Preview is the most recently added Moondream model on OpenRouter, listed on October 15, 2026.

Moondream

Access 2 Moondream models through the OpenRouter unified API including Moondream 3 Preview and Moondream 3.1. Compare pricing, context windows, benchmarks, and capabilities between different Moondream models.

Moondream tokens processed on OpenRouter

Moondream: Moondream 3 PreviewMoondream 3 Preview
584K tokens
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.
by moondreamOct 15, 202632K context$0.30/M input tokens$2.50/M output tokens
Moondream: Moondream 3.1Moondream 3.1
639K tokens
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.
by moondreamOct 15, 202632K context$0.30/M input tokens$2.50/M output tokens

Moondream

Access 2 Moondream models through the OpenRouter unified API including Moondream 3 Preview and Moondream 3.1. Compare pricing, context windows, benchmarks, and capabilities between different Moondream models.

Moondream tokens processed on OpenRouter

Moondream: Moondream 3 PreviewMoondream 3 Preview
584K tokens
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.
by moondreamOct 15, 202632K context$0.30/M input tokens$2.50/M output tokens
Moondream: Moondream 3.1Moondream 3.1
639K tokens
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.
by moondreamOct 15, 202632K context$0.30/M input tokens$2.50/M output tokens

Moondream

Frequently asked questions

Moondream

Frequently asked questions