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Head-to-head comparison

Olmo 3.1 32B Think vs Olmo 3 1125 32B

Olmo 3.1 32B Think (Allen Institute) and Olmo 3 1125 32B (Allen Institute) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.

Snapshot as of 12 September 2026

As of 12 September 2026, Olmo 3 1125 32B holds the stronger ModelCap Index position (#171 vs #172).

Which should you choose?

Choose Olmo 3.1 32B Think if…

  • you want the more recently listed model — Olmo 3.1 32B Think was listed 10 December 2025, Olmo 3 1125 32B 4 November 2025.

Choose Olmo 3 1125 32B if…

  • you want the stronger overall ModelCap Index position — #171 against #172 (18.5 vs 17.6 points).

Olmo 3.1 32B Think vs Olmo 3 1125 32B: specs, pricing and context

Specification comparison of Olmo 3.1 32B Think and Olmo 3 1125 32B
FieldOlmo 3.1 32B ThinkAllen InstituteOlmo 3 1125 32BAllen Institute
ModelCap Index position#172#171
Index score17.618.5
EvidenceMeasuredEstimated
Input price / 1M tokensUnlistedUnlisted
Output price / 1M tokensUnlistedUnlisted
Context window— tokens— tokens
Max output tokens——
API providers listed00
Weight accessOpen weightsOpen weights
Input modalitiesTextText
First listed10 December 20254 November 2025
PublisherAllen InstituteAllen Institute

Evidence: 2 public benchmark observations across 2 boards · publisher-corpus-prior over 188 held-out anchors (9%); launch card against 3 resolved peers on 6 rows (91%); exceeds every named peer on 1 of 6 rows; no cross-lab optimism probe available; shrunk 0.2 up toward the measured corpus. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Olmo 3.1 32B Think vs Olmo 3 1125 32B

Public benchmark boards where Olmo 3.1 32B Think or Olmo 3 1125 32B has a published result
BoardOlmo 3.1 32B ThinkOlmo 3 1125 32BLeads
Arena codingArena (LMArena)13401324–1356—Only one result

Scores are the sources' own published figures for each model's best evaluated configuration; ModelCap never re-runs a benchmark.

Want a different pairing? Open the interactive comparison tool to swap either model for any current ranked language model.

Olmo 3.1 32B Think vs Olmo 3 1125 32B: common questions

Is Olmo 3.1 32B Think better than Olmo 3 1125 32B?

Olmo 3 1125 32B ranks higher on the ModelCap Index as of 12 September 2026: #171 against #172. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.

Is Olmo 3.1 32B Think cheaper than Olmo 3 1125 32B?

At least one of the two has no listed API price on ModelCap right now, so no price comparison is made.

Which has the bigger context window, Olmo 3.1 32B Think or Olmo 3 1125 32B?

Both publish a —-token context window.

Which is better for coding, Olmo 3.1 32B Think or Olmo 3 1125 32B?

The two models do not share a coding benchmark board on ModelCap yet, so no head-to-head coding score is published; the ModelCap Index position is the closest overall signal.

Are Olmo 3.1 32B Think and Olmo 3 1125 32B open-weight models?

Olmo 3.1 32B Think: Open weights. Olmo 3 1125 32B: Open weights. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.

Where can I run Olmo 3.1 32B Think and Olmo 3 1125 32B?

ModelCap currently lists 0 API providers for Olmo 3.1 32B Think and 0 for Olmo 3 1125 32B, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Olmo 3.1 32B Think vs Olmo 3 1125 32B comparison?

Every figure comes from the sealed ModelCap dataset published 12 September 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.

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