MODEL PROOF
Moondream 3.1
NO LMARENA GENERAL SCORE
No LMArena general score is attached to this listing.
- Independent LMArena score
- No LMArena general score
- Context window
- 32K
- Maximum output
- 4.1K
- Input modalities
- text, image
- Output modalities
- text
- Published input price
- $0.300 / 1M tokens
- Published output price
- $2.50 / 1M tokens
- Pricing kind
- fixed
Inspect complete billing conditions and endpoint terms below.
Price from PrimeIntellect: the cheapest offer that is serving, at standard delivery, with at least 90% of the reference context and at a declared precision that is not 4-bit (fp8), at its standard rate. The maker’s own precision is not known.
Every price dimension · USD per million tokens
| Input | $0.300/M |
|---|---|
| Output | $2.50/M |
| Cached input | Unknown/M |
| Cache write | Unknown/M |
| Cache write 1h | Unknown/M |
| Reasoning | Unknown/M |
Who sells it
The same weights, different shops. Cheapest is not like-for-like when serving precision differs.
1 provider offers · rates, limits and conditions
Rates are USD per million tokens. Endpoint terms can differ even when the quoted price and precision match. A listed parameter is a provider declaration, not a task-success test.
| Seller | Input | Output | Precision | Uptime (1d) |
|---|---|---|---|---|
| PrimeIntellectprimeintellect/fp8 Endpoint terms
| $0.300 | $2.50 | fp8 | 100.00% |
Independent scores
No independent benchmark has measured this model. Unrated is not a score of zero.
Capability
| Context window | 32K |
|---|---|
| Max output | 4K |
| Input modes | text, image |
| Tool use | no |
| Reasoning | optional |
| Open weights | Unknown |
Provenance
| Price source | openrouter.ai |
|---|---|
| Fetched | 2026-10-21 |
| Quality data | unrated |
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...
Questions this page answers
What does Moondream 3.1 cost?
$0.300/M in, $2.50/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription.
Does Moondream 3.1 have an independent quality score?
Moondream 3.1 has no LMArena general score in this catalogue. Unrated is not a score of zero.
What beats Moondream 3.1?
Moondream 3.1 has no LMArena general score. Unrated is not a score of zero.
Does this page use Artificial Analysis scores for Moondream 3.1?
No. Artificial Analysis figures are not published here. Quality on this page is LMArena Elo where a score exists; otherwise the row is unrated.
Does a missing score mean Moondream 3.1 scored zero?
Unrated is not a score of zero.
MODEL MONUMENT
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Badge
The verdict as one SVG, for a README or a docs page. It states this model's dominance status at the balanced workload on the LMArena lens, with the date it was computed, and it is rebuilt with the catalogue — so it changes when the verdict changes, including to one you would rather it did not.
[](https://undominated.ai/models/moondream__moondream3.1-9b-a2b/)<a href="https://undominated.ai/models/moondream__moondream3.1-9b-a2b/"><img src="https://undominated.ai/badge/moondream__moondream3.1-9b-a2b.svg" alt="Moondream 3.1 — Undominated.ai dominance verdict" height="36"></a>Direct file: https://undominated.ai/badge/moondream__moondream3.1-9b-a2b.svg — a static SVG, written by scripts/build-badges.mjs on every build, so the copy you embed is never
older than the last deploy.
