Olmo 3.1 32B Think

Allen AI chatreasoningtool_use

API ID: allenai/olmo-3.1-32b-think-20251215

Input Price
$0.15
/1M tokens
Output Price
$0.50
/1M tokens

About Olmo 3.1 32B Think

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.

💰
Price Ranking
#755 lowest price among 1240 Chat models

Model Specifications

Context Length
66k
Max Output
66k
Release Date
2025-12-16
Capabilities
chat reasoning tool_use
Input Modalities
text
Output Modalities
text

Best For

  • Complex reasoning, math problems, multi-step logic
  • Conversations, content writing, general assistance

Consider Alternatives For

  • Image understanding (needs vision capability)
  • Simple Q&A (cheaper models available)

💰 Real-World Cost Examples

Estimated monthly costs for common use cases

Personal AI Assistant
$0.22
/month
50 conversations/day, ~500 tokens each
Customer Service Bot
$6.75
/month
1000 tickets/day, ~800 tokens each
Data Analysis Pipeline
$9.38
/month
500 analyses/day, ~2k tokens each

Allen AI Model Lineup

Compare all models from Allen AI to find the best fit

Model Input Output Context Capabilities
Olmo 3.1 32B Think Current $0.15 $0.50 66k chat reasoning tool_use
Llama 3.1 Tulu 3 405B Free Free - chat
Llama 3.1 Tulu 3 405B Free Free - chat
OLMo 7B Instruct Free Free 2k chat
OLMo 7B Instruct Free Free 2k chat
Olmo 2 32B Instruct $0.05 $0.20 128k chat tool_use

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🚀 Quick Start

Get started with Olmo 3.1 32B Think API

OpenAI-compatible SDK
from openai import OpenAI

client = OpenAI(
    base_url="https://api.provider.com/v1",
    api_key="YOUR_API_KEY"
)

response = client.chat.completions.create(
    model="allenai/olmo-3.1-32b-think-20251215",
    messages=[
        {"role": "user", "content": "Hello!"}
    ]
)
print(response.choices[0].message.content)