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ModelCap

Head-to-head comparison

OLMo 2 0325 32B Instruct vs Olmo 3.1 32B Think

OLMo 2 0325 32B Instruct (Allen Institute) and Olmo 3.1 32B Think (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 15 September 2026

As of 15 September 2026, Olmo 3.1 32B Think holds the stronger ModelCap Index position (#184 vs #193).

Which should you choose?

Choose OLMo 2 0325 32B Instruct if…

  • ModelCap publishes no field on which OLMo 2 0325 32B Instruct leads Olmo 3.1 32B Think for this pair.

Choose Olmo 3.1 32B Think if…

  • you want the stronger overall ModelCap Index position — #184 against #193 (17.4 vs 11.9 points).
  • you want the more recently listed model — Olmo 3.1 32B Think was listed 10 December 2025, OLMo 2 0325 32B Instruct 12 March 2025.

OLMo 2 0325 32B Instruct vs Olmo 3.1 32B Think: specs, pricing and context

Specification comparison of OLMo 2 0325 32B Instruct and Olmo 3.1 32B Think
FieldOLMo 2 0325 32B InstructAllen InstituteOlmo 3.1 32B ThinkAllen Institute
ModelCap Index position#193#184
Index score11.917.4
EvidenceMeasuredMeasured
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 listed12 March 202510 December 2025
PublisherAllen InstituteAllen Institute

Evidence: 1 public benchmark observation across 1 board · 2 public benchmark observations across 2 boards. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: OLMo 2 0325 32B Instruct vs Olmo 3.1 32B Think

Public benchmark boards where OLMo 2 0325 32B Instruct or Olmo 3.1 32B Think has a published result
BoardOLMo 2 0325 32B InstructOlmo 3.1 32B ThinkLeads
Arena codingArena (LMArena)—13401324–1356Only 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 2 0325 32B Instruct vs Olmo 3.1 32B Think: common questions

Is OLMo 2 0325 32B Instruct better than Olmo 3.1 32B Think?

Olmo 3.1 32B Think ranks higher on the ModelCap Index as of 15 September 2026: #184 against #193. 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 2 0325 32B Instruct cheaper than Olmo 3.1 32B Think?

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 2 0325 32B Instruct or Olmo 3.1 32B Think?

Both publish a —-token context window.

Which is better for coding, OLMo 2 0325 32B Instruct or Olmo 3.1 32B Think?

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 2 0325 32B Instruct and Olmo 3.1 32B Think open-weight models?

OLMo 2 0325 32B Instruct: Open weights. Olmo 3.1 32B Think: 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 2 0325 32B Instruct and Olmo 3.1 32B Think?

ModelCap currently lists 0 API providers for OLMo 2 0325 32B Instruct and 0 for Olmo 3.1 32B Think, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this OLMo 2 0325 32B Instruct vs Olmo 3.1 32B Think comparison?

Every figure comes from the sealed ModelCap dataset published 15 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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