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ModelCap

Xing4.0 29B A4B

Current board #60Official publisher releaseNewOpen weights

XingChen AGI·XingChen-AGI/Xing4.0-29B-A4B

Xing4.0 29B A4B is ModelCap current-board rank #60 with Index 57.8 (Modeled · peer benchmarks), from the ModelCap Index as of 17 Sept 2026, 13:44 UTC.

Xing4.0 29B A4B weight access is open weights, from ModelCap classification of published repository metadata as of 17 Sept 2026, 13:44 UTC.

Snapshot facts · download the public dataset · methodology

ModelCap Index · Current board
57.8#60
Estimated · 28% support · score interval 46.4–69.3
No admitted evaluation publication timestamp yet
Market Gravity
6.9
Secondary market signal

OpenRouter endpoint status could not be refreshed. This model is not treated as currently served until a successful observation arrives.

Input
Self-hosted
weights only · no listed API price
Output
Self-hosted
weights only · no listed API price
Context
tokens
Providers
0
endpoints
Gateway spend
latest · Vercel share

Providers

Uptime measured over the last 30 minutes

Current provider status is unavailable.

ModelCap Index · Current board

Methodology
57.8
Modeled · peer benchmarks · calibrated architecture-and-release-era fallback from static public metadata
Current board
#60
Public rank basis
Modeled · peer benchmarks (architecture)
Index support
27.7% · limited
Index interval
46.4–69.3
Rank posterior
Not available
Top 5 / Top 10 probability
Not available / Not available
Posterior as of
Snapshot timestamp unavailable
Evidence as of
No admitted evaluation publication timestamp
Identity binding
Exact catalogue product · xingchen-agi/XingChen-AGI/Xing4.0-29B-A4B · aggregates disclosed benchmark configurations · endpoint configuration not claimed · artifact metadata XingChen-AGI/Xing4.0-29B-A4B@c0b1a6d1ccbba5543eb0c30dd8b7f20eb28e84d6 (not the evaluation revision)
Index observations used
0
Qualified Index evidence point
57.8
How this position was produced · fused launch placement

No general-family board lists this model yet. Its point estimate is the precision-weighted mean of every channel that spoke for it; each channel’s share is the weight it carried. Independent measurements replace this placement as boards list the model.

Fused estimate
57.8 ± 8.9
Independent share
0%
Shrink toward corpus
-1.2
Peer ceiling share
20%
Optimism haircut
None required · cross lab probe, 3 probes
Method
precision-weighted-v1
Channels fused into this model’s launch placement
ChannelEstimateShare
Publisher corpus prior · not independent
global-corpus-prior over 197 held-out anchors
51.3 ± 22.716%
Launch card against resolved peers · not independent
launch card against 2 resolved peers on 5 rows
59.0 ± 9.785%
  • · Launch card row aime-2026: inside the resolved peer range
  • · Launch card row ifbench: inside the resolved peer range
  • · Launch card row swe-bench-multilingual: inside the resolved peer range
  • · Launch card row swe-bench-verified: inside the resolved peer range
  • · Launch card row terminal-bench-2-1: claims above every resolved peer
Bayesian Evidence Score · measured evidence input only

BES normalizes admitted public benchmark evidence for measured Index rows. Its legacy score and observables prior do not define the public language rank.

Observed capability
Evidence status
No admitted measured evidence
General preference
Coding
Agents & tools
Reasoning
Evidence breadth
0%
Evidence coverage
0%
Market and catalogue signals · secondary, never the language Index rank
Usage (OpenRouter popularity)
Liquidity (providers × uptime)
Open reach (HF downloads)
12.9
Surface (context / tools / modalities)
0.0
Freshness
99.5
  • · HF 30d downloads 61
  • · Catalogue surface
  • · First seen 2026-09-16

These adoption and deployment observations remain context only. They do not change this model's ModelCap Index score or rank.

The bounded 0–100 capability score blends each source’s competitive placement with its published achievement, then combines capability families. Evidence breadth adds a modest uncertainty adjustment; price and popularity are not part of benchmark-led rank.

Experimental capability estimate

Estimate policy
28.8
10.8–46.9 uncertainty interval
Excluded from rank
Confidence
71%
Training support
203 models · 117 lineages
Out-of-domain check
in domain
Feature coverage
71%
Lineage-held-out error
10.1 MAE

Experimental estimate. This layer predicts from admitted evidence and safe metadata only. It never enters ModelCap Score or rank.

Deployment readiness

Metadata index
47.9
partial · 52% metadata coverage
Not capability
Artifact reproducibility
85.0
Access & legal clarity
100.0
Deployability
8.0
Evaluation provenance
0.0

Missing: artifactReproducibility.base-lineage, deployability.independent-provider-records, deployability.measured-provider-uptime, deployability.published-provider-pricing, deployability.declared-capacity, evaluationProvenance.admitted-evaluation-observations, evaluationProvenance.capability-family-breadth, evaluationProvenance.evaluation-source-diversity, evaluationProvenance.identity-and-source-confidence, evaluationProvenance.evaluation-dataset-revisions.

A metadata completeness and deployability index—not a safety certification, quality grade, or production-readiness claim.

Market activity

Venue coverage
Market Gravity
6.9
OpenRouter weekly popularity
Not listed

Market Gravity uses OpenRouter’s full-catalogue popularity order. Sparse Vercel top-ten observations appear only when published and do not affect the score.

Arena preference

No matched Arena rating

This model is visible because it is available in the live catalogue, but it has no trustworthy community result yet. ModelCap does not infer a quality score from price, features, or market activity.

Market Gravity breakdown

Usage55%
0.0

OpenRouter weekly popularity across the full model catalogue.

Liquidity25%
0.0

Independent providers versus the model's open or closed cohort, weighted by uptime.

Open reach15%
12.9

Hugging Face 30-day downloads for open models; neutral for closed models.

Freshness5%
99.5

Time since first public availability, on a six-month half-life.

Specification

Context window
tokens
Max output
Inputs
Text
Outputs
Text
Tokenizer
Cached input tokens
Not offered
First seen on OpenRouter
16 Sept 2026

Capabilities

  • Not supported: Reasoning
  • Not supported: Tool use
  • Not supported: Structured output
  • Not supported: Response format
  • Not supported: Moderated

Weights & access

Open weights. Downloadable weights are published under an OSI or free-culture license in the current repository metadata. This describes weight availability, not whether the full training stack qualifies as Open Source AI.

Access
Open weights
Licence
apache-2.0
Pinned revision
c0b1a6d1ccbb
Parameters
31.2B
Architecture
Xing4_0ForCausalLM
Model type
xing4_0
Hugging Face downloads (30d)
61
Downloads (all time)
61
Likes
80
Repository updated
17 Sept 2026, 00:39 UTC

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Ranked neighbours

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Xing4.0 29B A4B: common questions

How does Xing4.0 29B A4B rank among AI models?

Xing4.0 29B A4B holds ModelCap Index position #60 of 224 ranked language models as of 17 September 2026, with an Index score of 57.8 (interval 46.4–69.3); evidence: modeled · peer benchmarks. The Index combines public benchmark boards with published uncertainty; the methodology page explains the weighting.

How much does Xing4.0 29B A4B cost per 1M tokens?

No live API price is listed for Xing4.0 29B A4B in the current snapshot as of 17 September 2026 because the latest endpoint refresh was unavailable. ModelCap shows a price only when a provider currently lists one.

Is Xing4.0 29B A4B open-weight?

Open weights (apache-2.0). Downloadable weights are published under an OSI or free-culture license in the current repository metadata. This describes weight availability, not whether the full training stack qualifies as Open Source AI. The repository is XingChen-AGI/Xing4.0-29B-A4B on Hugging Face.

Which benchmarks has Xing4.0 29B A4B been evaluated on?

Xing4.0 29B A4B's Index position rests on the evidence listed on this page; it has no result on the public boards ModelCap tracks as separate leaderboards as of 17 September 2026. The evidence panel names each source and its publication date.

How does Xing4.0 29B A4B compare with Ling 3.0 Flash VL?

Xing4.0 29B A4B ranks #60 (Index 57.8) and Ling 3.0 Flash VL ranks #59 (Index 57.9) on the ModelCap Index as of 17 September 2026. The head-to-head page lines up their benchmarks, listed prices, context windows and provider counts side by side.

When was Xing4.0 29B A4B released?

Xing4.0 29B A4B first appeared in the catalogue on 16 Sept 2026. It is the current version in its family. Rank and price movements since then are recorded on the site's changes feed.