
About AI21 Labs
AI21 Labs offers post-training for AI models tailored to a specific business. Its team works with customers to adapt a model to their own data and tasks.
What it does
The service trains models on customer data and evaluates them against frontier models for the task at hand. The company describes a combined approach that tunes the model and the agent harness around it together. Its platform covers evaluation, training, serving and ongoing improvement.
Key features
- Post-training on your own data
- Evaluation suites built for your tasks
- Model and agent harness tuned together
- Serving and continuous improvement steps
- Access to the company's research team
Who it's for
- Enterprises with proprietary data
- Teams that need a model tuned to one domain
- Product teams that want an edge built on their own data
Pricing and good to know
This is a service engagement rather than a self-serve plan, so pricing is discussed directly with the company. Results depend on the quality and volume of the training data you provide. Plan time for data preparation and evaluation, and ask for clear success measures before the work starts.
Highlights
- Train models on your own data
- Build evaluation suites for your tasks
- Tune the model and agent harness together
- Serve and improve models over time
- Work directly with the research team











