Best Braintrust Alternatives in 2026

#1 alternative

Vellum

Build, evaluate, and deploy LLM apps and agents with confidence.

#2 alternative

OpenObserve

OpenTelemetry-native observability for LLM calls, tools, and agent handoffs

#3 alternative

Helicone

Open-source LLM observability and AI gateway in one line of code.

#4 alternative

LiteLLM

Open-source AI gateway to call 100+ LLM APIs in one format

#5 alternative

Mixdesk

AI customer engagement across every messaging channel, with no per-seat fees

#6 alternative

Magic Hour

All-in-one AI studio with 100-plus tools for video, image, and audio

#7 alternative

Claude

Claude is an AI chatbot developed by Anthropic, offering conversational AI capabilities with multiple model tiers (Opus, Sonnet, Haiku) and specialized products including Claude Code for software deve

#8 alternative

Voiceflow

A collaborative platform to design, build and ship AI agents.

#9 alternative

ChatGPT

ChatGPT is an AI chatbot developed by OpenAI that handles conversational tasks including writing, coding, learning, and brainstorming

#10 alternative

Gemini

Gemini is Google's multimodal AI chatbot that handles text, images, audio, and video understanding with real-time Google Search integration and deep Google Workspace compatibility

#11 alternative

SciSpace

AI research assistant to find, understand, and write about papers

#12 alternative

Google Veo

Google DeepMind's text- and image-to-video model, generating high-quality clips with native audio.