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Model infoModelsSnapshot: 15 Oct 2026

Meshy / SeamFlow

SeamFlow

Joint research model for surface cutting and UV unwrapping. It predicts mesh-edge seam probabilities with flow matching; public code, weights and production access are not yet established.

restrictedClosed weights3D processing
Official documentation (opens in a new tab)Reviewed 14 Oct 2026
10 of 23 specification fields collected
Context windowNot collectedAwaiting source review
Maximum outputNot collectedAwaiting source review
Input billingNot collectedSeamFlow research collaboration
Output billingNot collectedNo inferred price

Specifications

Provider-documented facts. “Not collected” means we have not verified that field yet, not that the feature is unsupported.

Context / input limit
Not collected
Maximum input tokens
Not collected
Maximum output
Not collected
Reasoning
Not collected
Tool calling
Not collected
Structured output
Not collected

API task JSON is not caller-defined structured model output.

Streaming
Not collected

SSE reports task progress; streamed geometry output is not established.

Batch processing
Not collected

Multi-view inputs and queued tasks do not establish a discounted batch API.

Fine-tuning
Not collected

No customer model-weight fine-tuning contract documented.

Knowledge cutoff
Not collected
Release date
Not collected

Original release date not established by a later API or research announcement.

Parameters
Approximately 712 millionSource for Parameters (opens in a new tab)

Full model count reported in Appendix A.

Architecture
Flow matching on mesh-edge probabilities. A 28-block DiT uses width 1024, 16 attention heads and a 4096-wide SwiGLU feed-forward layer; local edge tokens attend to global shape features.Source for Architecture (opens in a new tab)
Languages
Not collected
Context caching
Not collected

No documented cache controls or cache price.

Output modalities
Mesh seam probabilities, UV layoutSource for Output modalities (opens in a new tab)
Research controls
50-step Euler sampling; alternate noise seeds produce different seam layouts. Local seam inpainting can hold unmasked areas fixed.Source for Research controls (opens in a new tab)

Research procedures, not hosted API request fields.

Training dataset
350,000 filtered Objaverse meshes with UVs and curated seam layouts; 2,000 held-out test meshes.Source for Training dataset (opens in a new tab)
Published training data
Training curation excludes meshes over 50,000 faces, degenerate geometry, self-intersections and implausible UV layouts.Source for Published training data (opens in a new tab)

Dataset curation threshold, not an API input limit or guaranteed maximum supported mesh.

Training hardware
8 NVIDIA H100 GPUsSource for Training hardware (opens in a new tab)

Training hardware, not inference deployment requirements.

Research output capabilities
Predicted edge probabilities are thresholded at 0.5. The evaluation pipeline uses SLIM for parameterization and Blender for UV packing.Source for Research output capabilities (opens in a new tab)
Endpoint availability
Research publication; project page marks code and models as forthcoming. No callable SeamFlow API selector is verified.Source for Endpoint availability (opens in a new tab)

Access & pricing

Prices belong to an endpoint and billing tier. A provider listing does not guarantee access for every account or region.

SeamFlow research collaboration

Provider source (opens in a new tab)
API model ID
Not collected

No callable public model selector is documented.

Access
Research publication and project page only. No public API, immutable checkpoint selector or model download verified.
Regions
No verified processing region
Endpoint availability
Research publication; project page marks code and models as forthcoming. No callable SeamFlow API selector is verified.Source for Endpoint availability (opens in a new tab)

Endpoint pricing has not been collected. Check the provider for applicable rates.

Data & enterprise terms

No model-specific commercial access, retention or hosting policy verified; Meshy API terms are not assumed to govern this joint research model.

Caching

Caching can reuse earlier input processing. Availability, lifetime and billing depend on the endpoint. A cache hit still generates a new response.

01 / INITIAL INPUTProcess & retain

The system processes eligible input and retains reusable state.

02 / LATER REQUESTCheck available state

Reuse depends on matching input, session state and the cache policy.

03 / CACHE HITReuse & generate

Reusing state can reduce repeated work. Any charges follow the billing rules below.

SeamFlow research collaboration

Not verified

No model-specific prompt-cache contract or discounted cache rate documented.

How it works
Not collected

No model-specific prompt-cache contract or discounted cache rate documented.

Minimum reusable input
Not collected

No model-specific prompt-cache contract or discounted cache rate documented.

Lifetime & refresh
Not collected

No model-specific prompt-cache contract or discounted cache rate documented.

How to enable it
Not collected

No model-specific prompt-cache contract or discounted cache rate documented.

Usage fields
Not collected

No model-specific prompt-cache contract or discounted cache rate documented.

Billing rules
Not collected

No model-specific prompt-cache contract or discounted cache rate documented.

Limits & data boundaries
Not collected

No model-specific prompt-cache contract or discounted cache rate documented.

No verified cache rate for this endpoint. An empty rate is not a zero charge.

Caching reviewed 14 Oct 2026

What the measurements say

No benchmark observations have been added for this model. We do not turn a vendor description into a performance score.

Latency and throughput depend on the host, request size, reasoning settings and load. There is no measured speed or global usage figure in this record.

The record behind the model

Why it is included

The authors’ project page explicitly marks code and models as forthcoming. This record describes currently unreleased weights, not a permanently proprietary license. Recheck when the promised release appears. The project-page template license does not license model weights.

Classification evidence (opens in a new tab)

Lifecycle dates

Research paper submitted4 Sept 2026Source (opens in a new tab)
Provider research article published21 Sept 2026Source (opens in a new tab)

Sources reviewed