Braintrust

Hosted platform for evaluating, logging and monitoring LLM applications. A closed product from Braintrust.

Side by side

2 open source alternatives to Braintrust
Tool	Fit	Stars	Licence	Terms	Self-hosted	Language	Latest	Last push
promptfoo	Partial	26k	MIT	Open source	No	TypeScript	code-scan-action-0.2.1	2026-10-06
DeepEval	Partial	19k	Apache-2.0	Open source	No	Python	python-v4.2.4	2026-10-05

Every alternative

2 alternatives

promptfoo Partial

Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.

Evals and red-teaming from a YAML config, run from the CLI or in CI, with a local web viewer.

Language: TypeScript
Licence: MIT
Stars: 26k
Latest: code-scan-action-0.2.1
Last push: 2026-10-06

DeepEval Partial

The LLM Evaluation Framework

Pytest-style evaluations with LLM-as-judge metrics, in Python.

Language: Python
Licence: Apache-2.0
Stars: 19k
Latest: python-v4.2.4
Last push: 2026-10-05

Head to head

DeepEval vs promptfoo

About Braintrust

Vendor: Braintrust

Braintrust website ↗