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ModelCap

Qwen3.5 2B

Official publisher releaseOpen weights

Qwen·Qwen/Qwen3.5-2B

Qwen3.5 2B weight access is open weights, from ModelCap classification of published repository metadata as of 9 Sept 2026, 20:46 UTC.

Snapshot facts · download the public dataset · methodology

ModelCap Index · Current board
Not scored · 0% support · score interval not available
Market Gravity
17.2
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.

Reported evaluation leads (15)

Not independent measurement

Structured rows reported in this exact model repository at the pinned revision below. They are the publisher talking about itself: never measured evidence, never a score input on their own. They remain quarantined until dataset revision, harness, configuration and identity pass ModelCap’s independent admission review.

Dataset / taskMetricValueRevisionProvenance
Idavidrein/gpqa
diamond
44.9495
Unpinned
not published
Reported
Quarantined
likaixin/ScreenSpot-Pro
overall
54.5
Unpinned
not published
Reported
Quarantined
LiquidAI/ifstruct-v1.0
ifstruct_v1
33.15
Unpinned
not published
Reported
Quarantined
llamaindex/ExtractBench
mean
63.4
Unpinned
not published
Reported
Quarantined
llamaindex/ExtractBench
short
71.22
Unpinned
not published
Reported
Quarantined
llamaindex/ExtractBench
medium
50.93
Unpinned
not published
Reported
Quarantined
llamaindex/ExtractBench
long
25.93
Unpinned
not published
Reported
Quarantined
llamaindex/ParseBench
mean
27.3
Unpinned
not published
Reported
Quarantined
llamaindex/ParseBench
text_content
87.2
Unpinned
not published
Reported
Quarantined
llamaindex/ParseBench
text_formatting
31.1
Unpinned
not published
Reported
Quarantined
llamaindex/ParseBench
layout
18.3
Unpinned
not published
Reported
Quarantined
llamaindex/ParseBench
chart
0.1
Unpinned
not published
Reported
Quarantined
llamaindex/ParseBench
table
0
Unpinned
not published
Reported
Quarantined
MMMU/MMMU_Pro
mmmu_pro_vision
50.3
Unpinned
not published
Reported
Quarantined
TIGER-Lab/MMLU-Pro
mmlu_pro
55.3
Unpinned
not published
Reported
Quarantined

ModelCap Index · Current board

Methodology
Not scored · peers unresolved
Public rank basis
Not scored (abstained)
Index support
0.0% · not applicable
Index interval
Not available
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/Qwen3.5-2B · aggregates disclosed benchmark configurations · endpoint configuration not claimed · artifact metadata Qwen/Qwen3.5-2B@15852e8c16360a2fea060d615a32b45270f8a8fc (not the evaluation revision)
Index observations used
0
Architecture fallback
abstained · 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)
98.3
Surface (context / tools / modalities)
15.0
Freshness
48.0
  • · HF 30d downloads 3115741
  • · Catalogue: modalities Text/Image
  • · First seen 2026-02-28

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
187 models · 107 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
52.4
partial · 56% metadata coverage
Not capability
Artifact reproducibility
100.0
Access & legal clarity
100.0
Deployability
8.0
Evaluation provenance
0.0

Missing: 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
17.2
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%
98.3

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

Freshness5%
48.0

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
28 Feb 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
15852e8c1636
Parameters
2.3B
Architecture
Qwen3_5ForConditionalGeneration
Model type
qwen3_5
Hugging Face downloads (30d)
3.1M
Downloads (all time)
14.1M
Likes
384
Repository
Qwen/Qwen3.5-2B
Repository updated
2 Mar 2026, 11:26 UTC

Benchmark leaderboards featuring Qwen3.5 2B

All leaderboards
Public benchmark boards on which Qwen3.5 2B has a published result
LeaderboardScoreSource rankConfigurationPublished
Terminal-Bench 2.1 (Artificial Analysis run)Artificial Analysis3.0%#219 of 236terminal-bench:2.1:terminus-2:e2b:pass-at-1:3-repeats:source-model="Qwen3.5 2B":reasoning=true9 Sept 2026
τ²-Bench Telecom (Artificial Analysis run)Artificial Analysis69.0%#168 of 436tau2:telecom:dual-control:pass-at-1:3-repeats:source-model="Qwen3.5 2B":reasoning=true9 Sept 2026
Humanity's Last Exam (Artificial Analysis run)Artificial Analysis2.6%#597 of 603hle:may-2025:text-only-2158:no-tools:pass-at-1:source-model="Qwen3.5 2B":reasoning=true9 Sept 2026

Qwen3.5 2B: common questions

How does Qwen3.5 2B rank among AI models?

Qwen3.5 2B has no public ModelCap Index position as of 9 September 2026: the snapshot lacks enough matched benchmark evidence, or the identity match is unresolved. Its catalogue facts (price, context, providers) are shown without a rank.

How much does Qwen3.5 2B cost per 1M tokens?

No live API price is listed for Qwen3.5 2B in the current snapshot as of 9 September 2026 because the latest endpoint refresh was unavailable. ModelCap shows a price only when a provider currently lists one.

Is Qwen3.5 2B 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 Qwen/Qwen3.5-2B on Hugging Face.

Which benchmarks has Qwen3.5 2B been evaluated on?

Qwen3.5 2B has published results on 3 public boards tracked by ModelCap as of 9 September 2026: AA Terminal-Bench 2.1 3.0% (#219 of 236), AA τ²-Bench Telecom 69.0% (#168 of 436) and AA Humanity's Last Exam 2.6% (#597 of 603). Each board page ranks every tracked model on that benchmark; the ModelCap Index combines them with published uncertainty.

When was Qwen3.5 2B released?

Qwen3.5 2B first appeared in the catalogue on 28 Feb 2026. It is the current version in its family. Rank and price movements since then are recorded on the site's changes feed.