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Head-to-head comparison

Olmo 3.1 7B RL Zero Math vs Olmo 3 7B RL Zero Mix

Olmo 3.1 7B RL Zero Math (Allen Institute) and Olmo 3 7B RL Zero Mix (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 7B RL Zero Mix holds the stronger ModelCap Index position (#209 vs #211).

Which should you choose?

Choose Olmo 3.1 7B RL Zero Math if…

  • you want the more recently listed model — Olmo 3.1 7B RL Zero Math was listed 12 December 2025, Olmo 3 7B RL Zero Mix 1 December 2025.

Choose Olmo 3 7B RL Zero Mix if…

  • you want the stronger overall ModelCap Index position — #209 against #211 (9.0 vs 9.0 points).

Olmo 3.1 7B RL Zero Math vs Olmo 3 7B RL Zero Mix: specs, pricing and context

Specification comparison of Olmo 3.1 7B RL Zero Math and Olmo 3 7B RL Zero Mix
FieldOlmo 3.1 7B RL Zero MathAllen InstituteOlmo 3 7B RL Zero MixAllen Institute
ModelCap Index position#211#209
Index score9.09.0
EvidenceInheritedInherited
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 December 20251 December 2025
PublisherAllen InstituteAllen Institute

Evidence: finetune of allenai/Olmo-3-1025-7B · finetune (100%) · finetune of allenai/Olmo-3-1025-7B · finetune (100%). Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Olmo 3.1 7B RL Zero Math vs Olmo 3 7B RL Zero Mix

Neither model has a published result on a public benchmark board ModelCap tracks yet.

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 7B RL Zero Math vs Olmo 3 7B RL Zero Mix: common questions

Is Olmo 3.1 7B RL Zero Math better than Olmo 3 7B RL Zero Mix?

Olmo 3 7B RL Zero Mix ranks higher on the ModelCap Index as of 15 September 2026: #209 against #211. 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 7B RL Zero Math cheaper than Olmo 3 7B RL Zero Mix?

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 7B RL Zero Math or Olmo 3 7B RL Zero Mix?

Both publish a —-token context window.

Which is better for coding, Olmo 3.1 7B RL Zero Math or Olmo 3 7B RL Zero Mix?

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 7B RL Zero Math and Olmo 3 7B RL Zero Mix open-weight models?

Olmo 3.1 7B RL Zero Math: Open weights. Olmo 3 7B RL Zero Mix: 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 7B RL Zero Math and Olmo 3 7B RL Zero Mix?

ModelCap currently lists 0 API providers for Olmo 3.1 7B RL Zero Math and 0 for Olmo 3 7B RL Zero Mix, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Olmo 3.1 7B RL Zero Math vs Olmo 3 7B RL Zero Mix 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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