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ModelCap

Olmo 3.1 32B Think

Arena #302Official publisher releaseOpen weights

Allen Institute·#260 of 351 on the current board

Olmo 3.1 32B Think is a language model from Allen Institute. It ranks #260 of 351 on ModelCap's current board, with an Index score of 25.0, measured on 2 public benchmarks. Its score range of 19.5–30.5 spans positions #233–#289. Its weights are openly downloadable.

Figures as of 25 Oct 2026, 23:19 UTC · download the public dataset · methodology

ModelCap Index · Current board
25.0#260
Measured on 2 public benchmarks · range 19.5–30.5
Evidence as of 22 Oct 2026, 00:00 UTC
Market Gravity
13.3
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 (2)

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
joelniklaus/LEXam-hard
lexam_hard
—18.37
Pinned
1bd50ee3ac80286fed27e5b89f03f4d8b4494244
Reported
Quarantined
Idavidrein/gpqa
diamond
—57.0707
Unpinned
not published
Reported
Quarantined

Other versions (1)

ModelCap Index · Current board

Methodology
25.0
Measured on 2 public benchmarks
Current board
#260 of 351
Score range
19.5–30.5
Rank range
#233–#289
Evidence as of
22 Oct 2026, 00:00 UTC
Benchmarks used
Arena Coding, Arena Overall
Technical details
Public rank basis
Measured (measured)
Evidence label
Measured · 2 public benchmark observations across 2 boards
Index support
56.8% · strong
Identity binding
Exact catalogue product · allenai/allenai/Olmo-3.1-32B-Think · aggregates disclosed benchmark configurations · endpoint configuration not claimed · artifact metadata allenai/Olmo-3.1-32B-Think@97ade57a9cc55ed48bcd76be4b7a3b6fee61b80d (not the evaluation revision)
Index observations used
2
Qualified Index evidence point
25.0
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
25.0
Evidence status
confirmed · 75% mass
General preference
24.5
Coding
28.4
Agents & tools
—
Reasoning
—
Evidence breadth
92%
Evidence coverage
57%
Market and catalogue signals · secondary, never the language Index rank
Usage (OpenRouter popularity)
—
Liquidity (providers × uptime)
—
Open reach (HF downloads)
78.7
Surface (context / tools / modalities)
0.0
Freshness
29.6
  • · HF 30d downloads 19269
  • · Catalogue surface
  • · First seen 2025-12-10

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

BES evidence selected · measured input only

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.

Deployment readiness

Metadata index
62.4
partial · 74% metadata coverage
Not capability
Artifact reproducibility
100.0
Access & legal clarity
100.0
Deployability
8.0
Evaluation provenance
50.1

Not yet published: a current serving provider, measured provider uptime, published provider pricing, declared context and output limits, 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
13.3
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

Status
Ranked
Source
LMArena
Official rank
#302 of 418
Rating
1286.4
95% confidence interval
1279–1294
Votes
8K
Source published at
22 Oct 2026, 00:00 UTC
Category
overall
Identity match confidence
100%

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%
78.7

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

Freshness5%
29.6

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

Specification

Model ID
allenai/Olmo-3.1-32B-Think
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
Outputs
Text
Cached input tokens
Not offered
First seen on OpenRouter
10 Dec 2025

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
97ade57a9cc5
Parameters
32.2B
Architecture
Olmo3ForCausalLM
Model type
olmo3
Hugging Face downloads (30d)
19K
Downloads (all time)
86K
Likes
117
Repository updated
13 Oct 2026, 21:06 UTC

Compare Olmo 3.1 32B Think with

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Benchmark leaderboards featuring Olmo 3.1 32B Think

All leaderboards
Public benchmark boards on which Olmo 3.1 32B Think has a published result
LeaderboardScoreSource rankConfigurationPublished
Arena text leaderboardArena (LMArena)12861279–1294#302 of 418Not reported22 Oct 2026
Arena coding leaderboardArena (LMArena)13411325–1356#284 of 413Default22 Oct 2026

Alternatives to Olmo 3.1 32B Think, by the numbers

Ranked neighbours

Models within 3 places of #260 on the ModelCap Index.

Other ranked Allen Institute models

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

Olmo 3.1 32B Think: common questions

How does Olmo 3.1 32B Think rank among AI models?

Olmo 3.1 32B Think holds ModelCap Index position #260 of 351 ranked language models as of 25 October 2026, with an Index score of 25.0 (interval 19.5–30.5); evidence: measured. The Index combines public benchmark boards with published uncertainty; the methodology page explains the weighting.

How much does Olmo 3.1 32B Think cost per 1M tokens?

No live API price is listed for Olmo 3.1 32B Think in the current snapshot as of 25 October 2026 because the latest endpoint refresh was unavailable. ModelCap shows a price only when a provider currently lists one.

Is Olmo 3.1 32B Think 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 allenai/Olmo-3.1-32B-Think on Hugging Face.

Which benchmarks has Olmo 3.1 32B Think been evaluated on?

Olmo 3.1 32B Think has published results on 2 public boards tracked by ModelCap as of 25 October 2026: Arena text 1286 (#302 of 418) and Arena coding 1341 (#284 of 413). Each board page ranks every tracked model on that benchmark. The ModelCap Index scores the results its methodology admits, with published uncertainty, and shows reference boards without scoring them.

How does Olmo 3.1 32B Think compare with Llama 3.1 Tulu 3 70B?

Olmo 3.1 32B Think ranks #260 (Index 25.0) and Llama 3.1 Tulu 3 70B ranks #267 (Index 24.2) on the ModelCap Index as of 25 October 2026. The head-to-head page lines up their benchmarks, listed prices, context windows and provider counts side by side.

When was Olmo 3.1 32B Think released?

Olmo 3.1 32B Think first appeared in the catalogue on 10 Dec 2025. It is the current version in its family. Rank and price movements since then are recorded on the site's changes feed.