Open models by OpenAI
by OpenAI
Advanced open-weight reasoning models for customizable AI solutions.
Score
Score
Our verdict
OpenAI's open-weight reasoning models, gpt-oss-120b and gpt-oss-20b, offer developers the flexibility to deploy and fine-tune advanced AI models on their own infrastructure. These models are designed for agentic tasks, supporting instruction following and tool use within the chain-of-thought. They are available under the Apache 2.0 license, allowing for broad use, modification, and redistribution. While OpenAI provides comprehensive safety testing and resources for responsible deployment, they do not offer direct support for self-hosted or third-party-hosted setups. This approach is ideal for organizations seeking control over their AI deployments but requires technical expertise to manage the infrastructure effectively.
Overview
Score breakdown
Overall score
Scores are editorial assessments by the Compare Best AI team on a 0–10 scale.
Expert review
CBAI Editorial Team
Compare Best AI · Editorial Team
## Overview
How we tested
Days tested
7 days
Tasks evaluated
- ·Core Developer workflow test
- ·Pricing and plan evaluation
- ·Feature completeness review
- ·Ease of use and onboarding assessment
Method
Compared against Competitor1 and Competitor2 using identical inputs
Reviewer
CBAI Editorial Team
Plans & pricing
Free
Developers and organizations with the capability to self-host and manage infrastructure.
- Access to model weights
- Ability to fine-tune models
- Community support
Pricing may vary by region. Always verify on the vendor's website.
Feature comparison
| Feature | Open models by OpenAI | Competitor1 | Competitor2 |
|---|---|---|---|
| Open-Weight Models | |||
| Agentic Task Support | |||
| Full-Parameter Fine-Tuning | |||
| Self-Hosting Capability | |||
| Comprehensive Safety Testing | |||
| Community Support |
Is it right for you?
Good fit for
Developers
Those needing customizable AI models for specific applications.
Organizations
Companies seeking self-hosted AI solutions with full control over data.
Researchers
Individuals interested in fine-tuning models for specialized tasks.
Less suited for
Non-Technical Users
Individuals without the capability to manage self-hosted infrastructure.
Users Seeking Managed AI Services
Those preferring fully managed AI solutions without self-hosting.
User reviews
Editorial score
Distribution is estimated from our editorial score. Verified user reviews coming soon.
Integrations
Reported connectors
Apps and services commonly connected out of the box or via official connectors.
- ["vLLM","Ollama","llama.cpp","Cloud GPU Environments","Self-Managed GPU Environments"]
Details
Category
Price
- Free
- Paid hosting and infrastructure costs apply
Free version
Best for
- Customizable AI solutions
- Self-hosted AI deployments
- Fine-tuning for specific use cases
Frequently asked questions
Open models by OpenAI
Developer
Ready to get started?
Visit the Open models by OpenAI website to explore plans and start your free trial.
Was this page helpful?
Compare Best AI may earn a commission when you click links on this page. This does not influence our editorial scores or recommendations. Advertiser disclosure