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Olmo 3.1 32B Think

by allenai · Released Dec 2025

Open Source
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Context
66K tokens (~33 books)
Input $/1M
$0.15
Output $/1M
$0.50
Type
text
License
Open Source
Benchmarks
1 tested
Data updated today
About

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 with 0.0% average. Top scores: Chatbot Arena Elo — Overall (1285.6%).

Benchmark Scores
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Tested on 1 benchmarks · Ranked across 1 categories
Score Distribution (all 233 models)
0255075100
Chatbot Arena Elo — Overall

Chatbot Arena overall Elo rating. Crowdsourced human preference ranking from blind head-to-head comparisons across all topics.

1286
Excellent (85+) Good (70-85) Average (50-70) Below (<50)
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olmo-3-1-32b-think
Specifications
  • Typetext
  • Context66K tokens (~33 books)
  • ReleasedDec 2025
  • LicenseOpen Source
  • StatusActive
  • Cost / Message~$0.001
Available On
allenai logoallenai$0.15
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Olmo 3.1 32B Think is an open-source text AI model by allenai, released in December 2025. Context window: 66K tokens.