Author's Description
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.
Key Specifications
Supported Parameters
This model supports the following parameters:
Features
This model supports the following features:
Performance Summary
AllenAI: Olmo 3.1 32B Think demonstrates exceptional reliability, achieving a 99% success rate across benchmarks, indicating consistent and stable operation. However, its speed performance is a notable weakness, ranking in the 12th percentile with generally longer response times. Pricing is moderate, falling into the 28th percentile. The model exhibits strong performance in several key areas. It achieves high accuracy in Reasoning (90.0%, 79th percentile) and Coding (91.0%, 72nd percentile), aligning with its design for deep reasoning and complex logic. General Knowledge is also robust at 99.0% accuracy (64th percentile). Instruction Following shows solid capability at 64.6% accuracy (69th percentile). While its hallucination rate is relatively low at 91.5% accuracy (45th percentile for not hallucinating), there's room for improvement in consistently acknowledging uncertainty. Mathematics performance is average at 88.4% (57th percentile), and Ethics (98.0%, 38th percentile) and Email Classification (96.8%, 40th percentile) are competent but not top-tier. Its primary weakness lies in its slower processing speeds across all evaluated tasks.
Model Pricing
Current Pricing
| Feature | Price (per 1M tokens) |
|---|---|
| Prompt | $0.15 |
| Completion | $0.5 |
Price History
Available Endpoints
| Provider | Endpoint Name | Context Length | Pricing (Input) | Pricing (Output) |
|---|---|---|---|---|
|
Parasail
|
Parasail | allenai/olmo-3.1-32b-think-20251215 | 65K | $0.15 / 1M tokens | $0.5 / 1M tokens |
Benchmark Results
| Benchmark | Category | Reasoning | Strategy | Free | Executions | Accuracy | Cost | Duration |
|---|
Other Models by allenai
|
|
Released | Params | Context |
|
Speed | Ability | Cost |
|---|---|---|---|---|---|---|---|
| AllenAI: Olmo 3 32B Think | Nov 21, 2025 | 32B | 65K |
Text input
Text output
|
★ | ★★★ | $$$$ |
| AllenAI: Olmo 3 7B Instruct | Nov 21, 2025 | 7B | 65K |
Text input
Text output
|
— | — | $$ |
| AllenAI: Olmo 3 7B Think | Nov 21, 2025 | 7B | 65K |
Text input
Text output
|
— | ★ | $$ |
| AllenAI: Molmo 7B D Unavailable | Mar 26, 2025 | 7B | 4K |
Text input
Image input
Text output
|
— | — | $$ |
| AllenAI: Molmo 7B D Unavailable | Mar 26, 2025 | 7B | 4K |
Text input
Image input
Text output
|
— | — | $$ |
| AllenAI: Olmo 2 32B Instruct | Mar 14, 2025 | 32B | 4K |
Text input
Text output
|
★★★★ | ★★ | $$$$ |