Olmo 3.1 32B Think is a large-scale, 32-billion-parameter model designed for deep reasoning, complex multi-step logic, and advanced instruction following. Building on the Olmo 3 series, version 3.1 delivers refined reasoning behavior and stronger performance across demanding evaluations and nuanced conversational tasks. Developed by Ai2 under the Apache 2.0 license, Olmo 3.1 32B Think continues the Olmo initiative’s commitment to openness, providing full transparency across model weights, code, and training methodology.
Tested on 1 benchmarks. Top scores: Chatbot Arena Elo — Overall (1285.6%).
Chatbot Arena overall Elo rating. Crowdsourced human preference ranking from blind head-to-head comparisons across all topics.
- Typetext
- Context66K tokens (~33 books)
- ReleasedDec 2025
- LicenseOpen Source
- StatusActive
- Cost / Message~$0.001
Frequently Asked Questions
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Chatbot Arena Elo — OverallKey facts · as of 2026-04-05
- Olmo 3.1 32B Think by allenai. Not enough public benchmark scores to rank yet.
- List price $0.15 input · $0.50 output per 1M tokens (as of 2026-04-05).
How to cite · data as of 2026-04-05
Olmo 3.1 32B Think · benchmarks, pricing and providers. BenchGecko, data as of 2026-04-05. https://benchgecko.ai/model/olmo-3-1-32b-think
Credit "Source: BenchGecko" with a link. Prices per provider and Gecko Tests are BenchGecko data (CC BY 4.0); benchmark scores keep their original source, listed in the JSON. JSON · llms.txt · MCP