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Intern S2 Preview

Official publisher releaseOpen weights6.9d #77 → #79

Internlm·#79 of 352 on the current board

Intern S2 Preview is a language model from Internlm. It ranks #79 of 352 on ModelCap's current board, with an Index score of 61.3, modeled from public metadata, not measured. Its score range of 38.0–84.7 spans positions #5–#185. Its weights are openly downloadable.

Figures as of 6 Nov 2026, 20:49 UTC · download the public dataset · methodology

ModelCap Index · Current board
61.3#79
Modeled from public metadata, not measured · range 38.0–84.7
Market Gravity
11.6
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

Providers

Uptime measured over the last 30 minutes

Current provider status is unavailable.

Reported evaluation leads (6)

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. Rows marked as used were laddered against independently measured peers inside the launch-card channel of this model's modeled placement, with the replay-measured optimism haircut applied; the others played no part.

Dataset / taskMetricValueRevisionProvenance
cais/hle
hle
—21.94
Unpinned
not published
Reported
Not used in launch estimate
internlm/WildClawBench
overall
—39.2
Unpinned
not published
Reported
Not used in launch estimate
MathArena/hmmt_feb_2026
MathArena/hmmt_feb_2026
—87.31
Unpinned
not published
Reported
Not used in launch estimate
MMMU/MMMU_Pro
mmmu_pro_vision
—76.88
Unpinned
not published
Reported
Not used in launch estimate
SWE-bench/SWE-bench_Verified
swe_bench_%_resolved
—64
Unpinned
not published
Reported
Not used in launch estimate
TIGER-Lab/MMLU-Pro
mmlu_pro
—88
Unpinned
not published
Reported
Not used in launch estimate

Other versions (1)

ModelCap Index · Current board

Methodology
61.3
Modeled from public metadata, not measured
Current board
#79 of 352
Score range
38.0–84.7
Rank range
#5–#185
Technical details
Public rank basis
Modeled · prior (architecture)
Evidence label
Modeled · prior · 5 reported rows against measured corpus ladders (41%); global-corpus-prior over 210 held-out anchors (59%); shrunk 11.2 toward the measured corpus
Index support
23.1% · limited
Identity binding
Exact catalogue product · internlm/internlm/Intern-S2-Preview · aggregates disclosed benchmark configurations · endpoint configuration not claimed · artifact metadata internlm/Intern-S2-Preview@4f57cab513689b089019fce4ad24e26520df183c (not the evaluation revision)
Index observations used
0
Qualified Index evidence point
61.3
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
61.3 ± 18.2
Independent share
0%
Shrink toward corpus
-11.2
Optimism haircut
None applied
Method
precision-weighted-v1
Channels fused into this model’s launch placement
ChannelEstimateShare
Corpus ladder · not independent
5 reported rows against measured corpus ladders
72.5 ± 28.441%
Publisher corpus prior · not independent
global-corpus-prior over 210 held-out anchors
53.5 ± 23.859%
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)
60.5
Surface (context / tools / modalities)
15.0
Freshness
51.2
  • · HF 30d downloads 2573
  • · Catalogue: modalities Text/Image
  • · First seen 2026-05-15

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
29.9
13.8–46.0 uncertainty interval
Excluded from rank
Confidence
71%
Training support
221 models · 129 lineages
Out-of-domain check
in domain
Feature coverage
71%
Lineage-held-out error
8.3 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

Not yet published: the base model it derives from, a current serving provider, measured provider uptime, published provider pricing, declared context and output limits, admitted benchmark results, results across several capability areas, results from more than one source, a confident match to its benchmark entries, pinned evaluation dataset versions.

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

Market activity

Venue coverage
Market Gravity
11.6
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%
60.5

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

Freshness5%
51.2

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

Specification

Model ID
internlm/Intern-S2-Preview
Declared output cap
Unknown

OpenRouter catalogue or provider-endpoint declaration. Limits can vary by provider and prompt length; a model-wide maximum has not been independently verified. OpenRouter metadata

Inputs
Text, Image
Outputs
Text
Cached input tokens
Not offered
First seen on OpenRouter
15 May 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
4f57cab51368
Parameters
36.1B
Architecture
InternS2PreviewForConditionalGeneration
Model type
intern_s2_preview
Hugging Face downloads (30d)
3K
Downloads (all time)
32K
Likes
123
Repository updated
29 May 2026, 07:30 UTC

Alternatives to Intern S2 Preview, by the numbers

Ranked neighbours

Models within 3 places of #79 on the ModelCap Index.

Other ranked Internlm models

The same publisher's other current models with a public Index position.

Intern S2 Preview: common questions

How does Intern S2 Preview rank among AI models?

Intern S2 Preview holds ModelCap Index position #79 of 352 ranked language models as of 6 November 2026, with an Index score of 61.3 (interval 38.0–84.7); evidence: modeled · prior. The Index combines public benchmark boards with published uncertainty; the methodology page explains the weighting.

How much does Intern S2 Preview cost per 1M tokens?

No live API price is listed for Intern S2 Preview in the current snapshot as of 6 November 2026 because the latest endpoint refresh was unavailable. ModelCap shows a price only when a provider currently lists one.

Is Intern S2 Preview 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 internlm/Intern-S2-Preview on Hugging Face.

Which benchmarks has Intern S2 Preview been evaluated on?

Intern S2 Preview'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 6 November 2026. The evidence panel names each source and its publication date.

When was Intern S2 Preview released?

Intern S2 Preview first appeared in the catalogue on 15 May 2026. It is the current version in its family. Rank and price movements since then are recorded on the site's changes feed.