---
title: "Braintrust Pricing, Features & Alternatives (2026)"
description: "Braintrust review: LLM Observability & Evals tool — Free tier, plans, pros & cons, and the best Braintrust alternatives compared for startups in 2026."
source: https://appstackbuilder.com/tools/braintrust
retrieved: 2026-10-07
---

![Braintrust logo](https://www.google.com/s2/favicons?domain=braintrust.dev&sz=128)

[LLM Observability & Evals](https://appstackbuilder.com/categories/llm-observability)Free tier

# Braintrust: Pricing, Features & Alternatives

Braintrust starts from evaluation rather than tracing: experiments, datasets, scorers and a playground for comparing prompts and models side by side, with production logging on the same data. Every plan has unlimited users. The free Starter plan includes 1 GB of processed data and 10k scores with 14-day retention. Pro is $249/month for 5 GB and 50k scores, then $3/GB and $1.50 per 1,000 scores, and qualifying startups can get 6–12 months of Pro free. It is closed source; there is no self-hosted tier below Enterprise.

Category

LLM Observability & Evals

Pricing

Free tier available

Free tier

Yes

Best for

LLM Observability & Evals — llm, evals

[Visit Braintrust official site](https://www.braintrust.dev/)

## Braintrust Pricing Plans (2026)

| Plan       | Price        | Highlights                                                                 |
| ---------- | ------------ | -------------------------------------------------------------------------- |
| Starter    | $0           | 1 GB processed data (+$4/GB) · 10k scores (+$2.50 / 1k) · 14-day retention |
| ProPopular | $249 / month | 5 GB processed data (+$3/GB) · 50k scores (+$1.50 / 1k) · 30-day retention |
| Enterprise | Custom       | Custom data and retention · Hybrid / self-hosted deployment                |

Pricing summary: Free · paid from $249/mo. Always confirm current pricing on the official site.

## Key Braintrust Features

* ✓5 GB processed data (+$3/GB)
* ✓50k scores (+$1.50 / 1k)
* ✓30-day retention
* ✓Unlimited users
* ✓6–12 months free for qualifying startups

### ✓ Pros

* +Strongest eval and experiment workflow in the category
* +Unlimited users, so PMs and domain experts can review outputs
* +Generous startup program

### ✗ Cons

* −$0 to $249 is a steep step with nothing in between
* −Closed source, and only Enterprise can self-host
* −Short default retention on both self-serve plans

## Best Braintrust Alternatives

[Compare all ](https://appstackbuilder.com/tool-alternatives/braintrust)

[![Langfuse logo](https://www.google.com/s2/favicons?domain=langfuse.com&sz=128)LangfuseFree · paid from $29/mo](https://appstackbuilder.com/tools/langfuse)[![LangSmith logo](https://www.google.com/s2/favicons?domain=langchain.com&sz=128)LangSmithFree · paid from $39/seat/mo](https://appstackbuilder.com/tools/langsmith)[![OpenTelemetry logo](https://www.google.com/s2/favicons?domain=opentelemetry.io&sz=128)OpenTelemetryFree](https://appstackbuilder.com/tools/opentelemetry)

## Braintrust Compared

[Braintrust vs Langfuse](https://appstackbuilder.com/compare/braintrust-vs-langfuse)[Braintrust vs OpenTelemetry](https://appstackbuilder.com/compare/braintrust-vs-opentelemetry)[Braintrust vs LangSmith](https://appstackbuilder.com/compare/braintrust-vs-langsmith)

## Braintrust FAQ

What is Braintrust used for?⌄

Braintrust is a llm observability & evals tool. Eval-first AI observability with unlimited users on every plan. It is priced on data processed and scores run, not seats.

Is Braintrust free?⌄

Yes — Braintrust has a free tier you can start with, and paid plans for more usage and features.

How much does Braintrust cost?⌄

Braintrust offers a free tier, with paid plans starting at $249/month. Some plans are usage-based (pay-as-you-go).

What are the best Braintrust alternatives?⌄

Popular Braintrust alternatives include Langfuse, LangSmith, OpenTelemetry. Compare pricing and features on our Braintrust alternatives page.

## Not sure if Braintrust fits your stack?

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