Olmo 3.1 32B Think

allenai

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.

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Capabilities

Extended Thinking

Example Use Cases

Advanced open-source reasoning

Demanding multi-step logic

Nuanced analytical thinking

Technical Specifications

Context Window

65,536 tokens

Max Output

65,536 tokens

Cache Miss Cost

$0.15 per 1M tokens

Non-Reasoning Cost

$0.50 per 1M tokens

Web Search Cost

$15 per 1K calls

Code Execution Cost

$0.19 per 1K calls

⚠️ Legacy

Made legacy on

Reason

Untested

Recommended Replacement

Qwen3.5 Plus