Open-source LLM eval and red teaming: test prompts, compare models, catch jailbreaks and data leaks locally and in CI.
Best alternatives to Braintrust in 2026
Companies that ship AI products need to know whether the AI's answers are actually good — and catch the bad ones before customers see them. Braintrust is a paid service that records everything your AI does, grades its answers, and can automatically block an update if quality drops: a quality-control lab for AI products. Braintrust is an evaluation and observability platform for teams shipping production AI products. It ingests traces from AI applications — prompts, responses, tool calls — and layers three capabilities on top: tracing for real-time inspection with custom facets and task-specific views, evaluation where outputs are scored by LLM judges, code checks or human reviewers, and automation that turns those scores into quality gates capable of blocking a problematic release before it reaches users. Topics, its AI-powered pattern analysis, surfaces recurring failure modes from production traffic, and traces convert directly into evaluation datasets so regressions found in production become permanent test cases. Telemetry is stored in Brainstore, a proprietary database built for AI-specific data, and framework-agnostic SDKs cover Python, TypeScript, Go, Ruby and C#, with MCP integration. Customers include Vercel, Notion, Coursera, Dropbox, Replit and Graphite. Pricing is usage-based: a free Starter tier, a $249/month Pro plan plus data and scoring volume charges, and enterprise plans with on-premise or hosted deployment.
Quick comparison of Braintrust alternatives
| # | Tool | Best for | Price |
|---|---|---|---|
| 1 | AI/LLM engineers | Security teams | — | |
| 2 | Développeurs | — | |
| 3 | Entreprises et équipes IA déployant des agents en production ayant besoin de gouvernance et de sécurité sur l'accès aux outils | — | |
| 4 | Développeurs et équipes construisant des agents IA (Cursor, Claude, Copilot) devant sécuriser leurs appels API en production | — | |
| 5 | Entreprises de taille moyenne à grande à fort volume d'appels : rénovation, immobilier, assurance, voyage, santé, gestion immobilière | — | |
| 6 | Utilisateurs non-techniques : équipes support, vente, RH, opérations voulant un agent IA sans développeur | — | |
| 7 | Équipes vente, support, recouvrement et CX ayant des besoins d'appels multilingues à volume élevé, notamment en Asie du Sud | — | |
| 8 | Agences, consultants en transformation digitale, entreprises automatisant leurs interactions client sur plusieurs canaux | — | |
| 9 | Équipes IT et architecture d'entreprises dans des secteurs réglementés (santé, finance, juridique) ayant besoin de workflows IA gouvernés | — | |
| 10 | Développeurs et équipes techniques construisant des apps ou agents LLM sans vouloir coder toute la logique à la main | — | |
| 11 | Équipes de taille moyenne à grande utilisant déjà Slack, Notion, Drive ou GitHub et voulant des assistants IA ancrés dans leurs données internes | — | |
| 12 | Utilisateurs de navigateur qui veulent un compagnon animé ludique, avec un vrai intérêt pour la confidentialité et l'IA locale plutôt que cloud. | — |
- ✓ De-facto standard for open-source LLM evals — 23k+ stars, huge community
- ✓ Automated red teaming: injections, jailbreaks, PII leaks, policy violations
A security control layer that lets AI agents safely use your company's tools — Stripe, Slack, Salesforce, and 1000+ others — without giving them free rein over sensitive systems.
- ✓ Open source, communauté active (3 300+ étoiles)
- ✓ Compatible avec tout agent MCP
A safety layer that sits between an AI coding agent and the real APIs it calls, checking that responses look right and blocking calls the agent shouldn't be allowed to make.
- ✓ Installation en une commande CLI, sans SDK
- ✓ Détecte les changements de schéma API avant qu'ils cassent l'agent
AI voice and text agents that answer inbound calls and run outbound campaigns — booking appointments, qualifying leads, and handing off to a human when needed — for businesses handling high call volumes.
- ✓ Produit clé en main avec téléphonie intégrée
- ✓ Transfert vers un humain intégré pour les cas sensibles
Lets a non-technical team spin up a working AI support or sales agent by pointing it at a URL, instead of hiring a developer to wire one together.
- ✓ Déploiement d'un agent depuis une URL en ~2 minutes
- ✓ Génération de workflow en langage naturel
An AI that makes and answers business phone calls for you — sales outreach, support, collections, or scheduling — at a fraction of a second's response delay.
- ✓ 70+ langues avec changement en cours d'appel
- ✓ Latence sous les 300ms
Builds and deploys AI chatbots across WhatsApp, Facebook, Instagram, SMS and your website from one platform, with a white-label option agencies can resell to their own clients.
- ✓ Acteur établi à grande échelle (150 000+ clients revendiqués)
- ✓ Déploiement multi-canal : WhatsApp, Facebook, Instagram, SMS, web
A no-code, drag-and-drop platform for building AI agents that enterprises in regulated industries can actually get approved for internal use.
- ✓ Déploiement flexible : multi-tenant, VPC ou 100% on-premise
- ✓ Gouvernance et logs d'audit natifs
A free, open-source drag-and-drop builder for wiring together chatbots and AI agents out of LLM building blocks, without writing the underlying code.
- ✓ Open-source et auto-hébergeable gratuitement
- ✓ Chatflow (linéaire) et Agentflow (agents autonomes)
Lets a company plug an AI assistant into its own Slack, Notion, Drive and GitHub so employees can ask questions and get answers pulled from actual internal documents, not the open internet.
- ✓ Connecteurs prêts à l'emploi vers Notion, Slack, Drive, GitHub
- ✓ Multi-modèle : OpenAI, Anthropic, Google, Mistral
A free Chrome/Firefox browser extension: a context-aware AI pet that reacts to what you're browsing in real time, using Google's on-device Gemini Nano so nothing leaves your machine, open-source with 32 GitHub stars.
- ✓ Genuinely on-device AI (Gemini Nano), zero cloud calls, verifiable because it's open-source
- ✓ Free, no account, no data collection
FAQ about Braintrust alternatives
- What is the best alternative to Braintrust in 2026?
- Based on our selection, promptfoo is the best alternative to Braintrust in 2026. Open-source LLM eval and red teaming: test prompts, compare models, catch jailbreaks and data leaks locally and in CI.. See our full ranking above to compare all options.
- Is Braintrust free?
- Braintrust is a paid tool. Several alternatives in our selection offer free or freemium versions.
- How many alternatives to Braintrust are there?
- mySelectas has listed 12 alternatives to Braintrust in the AI & Machine Learning category. Our selection is updated regularly to include the best options available.