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ModelCap

Qwen3.8 27B

Current board #44Official publisher releaseOpen weights7d #44 → #44

Qwen·Qwen/Qwen3.8-27B

Qwen3.8 27B is ModelCap current-board rank #44 with Index 51.5 (Modeled · peer benchmarks), from the ModelCap Index as of 14 Aug 2026, 19:06 UTC.

Qwen3.8 27B weight access is open weights, from ModelCap classification of published repository metadata as of 14 Aug 2026, 19:06 UTC.

Snapshot facts · download the public dataset · methodology

ModelCap Index · Current board
51.5#44
Estimated · 17% support · score interval 51.5–92.1
No admitted evaluation publication timestamp yet
Market Gravity
4.9
Secondary market signal

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

Input
Free
per 1M tokens
Output
Free
per 1M tokens
Context
tokens
Providers
0
endpoints
Gateway spend
latest · Vercel share

Providers

Uptime measured over the last 30 minutes

Current provider status is unavailable.

Reported evaluation leads (5)

Excluded from score

Structured rows reported in this exact model repository at the pinned revision below. They are useful research leads, but remain quarantined until dataset revision, harness, configuration and identity pass ModelCap’s independent admission review.

Dataset / taskMetricValueRevisionProvenance
cais/hle
hle
30.8
Unpinned
not published
Reported
Quarantined
claw-eval/Claw-Eval
multimodal
57.4
Unpinned
not published
Reported
Quarantined
datacurve/deep-swe
deep_swe
42.2
Unpinned
not published
Reported
Quarantined
Idavidrein/gpqa
diamond
89.2
Unpinned
not published
Reported
Quarantined
ScaleAI/SWE-bench_Pro
SWE_Bench_Pro
61.7
Unpinned
not published
Reported
Quarantined

ModelCap Index · Current board

Methodology
51.5
Modeled · peer benchmarks · calibrated architecture-and-release-era fallback from static public metadata
Current board
#44
Public rank basis
Modeled · peer benchmarks (architecture)
Index support
16.8% · limited
Index interval
51.5–92.1
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 · qwen/Qwen/Qwen3.8-27B · aggregates disclosed benchmark configurations · endpoint configuration not claimed · artifact metadata Qwen/Qwen3.8-27B@1d4bf0f2ff6012fd82039f2fa52739d0dd7c60c0 (not the evaluation revision)
Index observations used
0
Qualified Index evidence point
71.8
Architecture fallback
estimated · 0% coverage · 0 anchors
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)
0.4
Surface (context / tools / modalities)
15.0
Freshness
96.5
  • · HF 30d downloads 2
  • · Catalogue: modalities Text/Image
  • · First seen 2026-08-05

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
Estimator abstained

uncertainty-above-gate

Feature coverage
71%
Training support
220 models · 142 lineages

uncertainty-above-gate. 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
4.9
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%
0.4

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

Freshness5%
96.5

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

Specification

Context window
tokens
Max output
Inputs
Text, Image
Outputs
Text
Tokenizer
Cached input tokens
Not offered
First seen on OpenRouter
5 Aug 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
1d4bf0f2ff60
Parameters
27.8B
Architecture
Qwen3_5ForConditionalGeneration
Model type
qwen3_5
Hugging Face downloads (30d)
2
Downloads (all time)
2
Likes
9K
Repository updated
14 Aug 2026, 15:00 UTC