All › AI › Braintrust

Braintrust

Evals, logging and prompt playground for AI products

Braintrust helps teams evaluate AI models and prompts, log production traces, and iterate in a shared playground.

Visit Braintrust ↗

Pricing: Free plan

Platforms: Web, API

Categories: AI, Developer Tools

Braintrust is an alternative to

LangSmith

Braintrust compared with similar tools

Product	Price	Open source	Self-host	Platforms
Braintrust	Free plan	–	–	Web, API
Langfuse	Free plan	Yes	Yes	Web, Self-hosted, API
Portkey	Free plan	Yes	Yes	Web, API, Self-hosted
Helicone	Free plan	Yes	Yes	Web, Self-hosted, API
Promptfoo	Free plan	Yes	–	Mac, Linux, Windows, Web
LiteLLM	Free plan	Yes	Yes	Self-hosted, API
Mintlify	Free plan	–	–	Web

Similar to Braintrust

Langfuse

Open-source LLM engineering platform for tracing and evals

Langfuse provides tracing, prompt management, evaluations and datasets for LLM applications, cloud or self-hosted.

Free plan · Web, Self-hosted, API · Website ↗

Portkey

AI gateway with observability and guardrails

Portkey provides an AI gateway for routing, caching and fallback across LLM providers, plus logging, prompts and guardrails.

Free plan · Web, API, Self-hosted · Website ↗

Helicone

Open-source LLM observability and gateway

Helicone logs and analyzes LLM requests for cost, latency and quality, and offers an AI gateway, self-hostable or managed.

Free plan · Web, Self-hosted, API · Website ↗

Promptfoo

Test and red-team LLM apps from the command line

Promptfoo is an open-source CLI for evaluating prompts and models with test cases and for red-teaming LLM apps for security issues.

Free plan · Mac, Linux, Windows, Web · Website ↗

LiteLLM

Open-source LLM gateway and SDK for 100+ providers

LiteLLM is a Python SDK and proxy server that calls many LLM providers through an OpenAI-style API, with budgets, keys and logging.

Free plan · Self-hosted, API · Website ↗

Mintlify

Hosted documentation platform for developer products

Mintlify builds documentation sites from MDX in your repo with API playgrounds, search and AI assistance.

Free plan · Web · Website ↗

Ollama

Run open large language models locally

Ollama downloads and runs open models such as Llama, Gemma, Qwen and Mistral on your computer with a CLI and local API.

Free plan · Mac, Windows, Linux · Website ↗

llama.cpp

LLM inference in C/C++ on everyday hardware

llama.cpp is an open-source C/C++ engine for running LLMs in GGUF format on CPUs and GPUs, with a built-in server.

Free · Mac, Windows, Linux · Website ↗

Questions

Is Braintrust free?

Braintrust is free to start, with paid plans.

What platforms does Braintrust run on?

Braintrust is available for Web, API.

What are some alternatives to Braintrust?

Similar indie products include Langfuse, Portkey, Helicone, Promptfoo and 4 more.

Is this your product? Submit an update.