Shortlist by what you need
Start here if you know why you are leaving Distributional.
Want the closest match?
BraintrustMost similar to Distributional in what it does, its category and its price.
Visit (opens Braintrust in a new tab)Want the best rated?
ArizeRated 4.2 out of 5 in our review, against 3.9 for Distributional.
Visit (opens Arize in a new tab)
At a glance
Green means better than Distributional, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 DistributionalBaseline | 3.9 | $99/mo | Yes | Enterprise platform that auto-generates statistical tests to catch AI model and application regressions before deployment. | |
| Braintrust | 4.2+0.3 | $249/mo$150 more | Yes | Raised an ICONIQ-led $80M Series B building the evaluation layer teams use to ship AI products with confidence | vs Distributional |
| Arize | 4.2+0.3 | Not listed | No | Grew from traditional ML monitoring into a $1B+ AI engineering platform for evaluating agents in production | vs Distributional |
The alternatives in detail
In order of how closely each one matches Distributional.
Braintrust
4.2$249/mo
vs Distributional$150 more+0.3
Raised an ICONIQ-led $80M Series B building the evaluation layer teams use to ship AI products with confidence.
- Evaluation-first platform, not just logging and tracing after the fact
- Lets teams test and score AI product behavior before shipping
- Tracing priced per GB for production observability
Evaluation-first approach catches failures a pure logging tool would only surface after the fact
Jump from free straight to $249/month with no mid-tier option limits gradual scaling
Arize
4.2Not listed
vs Distributional+0.3
Grew from traditional ML monitoring into a $1B+ AI engineering platform for evaluating agents in production.
- Started in traditional ML drift and performance monitoring before expanding to LLMs
- Open-source Arize Phoenix framework for generative AI observability
- LLM evaluation and prompt versioning through a Prompt Hub
Covers both traditional ML monitoring and generative AI evaluation in one platform
Enterprise pricing isn't published, so budgeting requires a sales conversation
FAQ
Questions people ask
Is Distributional free?
Distributional has a free plan, and paid plans start from $99/mo.
What is the best free alternative to Distributional?
Braintrust is the highest-rated alternative here with a free plan (4.2 out of 5).
What is the cheapest alternative to Distributional?
Among paid plans, Braintrust has the lowest starting price (from $249/mo). If you need it free, start with Braintrust.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.