Braintrust vs Helicone: Observability, Prompts & Evals Comparison
Compare Braintrust and Helicone side by side. Both are tools in the Observability, Prompts & Evals category.
The short answer
Choose Braintrust if custom-built Brainstore database optimized for AI data with fast full-text search and low latency.
Choose Helicone if open-source with 5.2K GitHub stars and strong community support.
Want to compare Braintrust and Helicone on your own traffic?
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 250+ models through one gateway. Free tier covers 10K traces per month. Setup in 5 minutes, no credit card.
Quick Comparison
| Category | Observability, Prompts & Evals | Observability, Prompts & Evals |
| Pricing | Freemium | — |
| Best For | AI teams who need a unified platform for logging, evaluating, and improving LLM applications | — |
| Website | braintrust.dev | helicone.ai |
| Key Features |
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| Use Cases |
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Pros & Cons: Braintrust vs Helicone
- +Custom-built Brainstore database optimized for AI data with fast full-text search and low latency
- +Framework agnostic with native SDKs for multiple languages and no vendor lock-in
- +Comprehensive security and compliance certifications including SOC 2 Type II, GDPR, and HIPAA
- +AI-assisted Loop Agent for automated optimization of prompts and evaluations
- +Strong backing with $80M Series B funding and customers including Vercel, Notion, Coursera, and Dropbox
- −Relatively new platform founded in 2022, less mature than some competitors
- −Pro plan at $249/month may be expensive for smaller teams or individual developers
- −Limited public information about advanced features and customization options
- +Open-source with 5.2K GitHub stars and strong community support
- +Minimal latency overhead (under 1ms for self-hosted)
- +Flexible deployment options including cloud-hosted, self-hosted, or SDK-only
- +Y Combinator-backed with SOC 2 Type II and HIPAA compliance
- +No code changes required for AI Gateway features like caching and rate limiting
- −Adds computational cost and one network hop for cloud deployment
- −Limited pricing transparency on website
- −May require infrastructure expertise for self-hosted setup
When to Choose Braintrust vs Helicone
- Iterating on prompts with real production data
- Running evaluations across model versions
- Building golden datasets from production traffic
About Braintrust
Braintrust is an AI observability and evaluation platform that helps teams build, monitor, and improve AI applications in production. The platform enables users to turn production traces into evaluations, compare prompts and models, and improve quality with every release. Built on a custom database called Brainstore designed specifically for AI data complexity, Braintrust provides real-time trace inspection, performance monitoring for latency, cost, and quality, along with automated alerts. The platform features Loop Agent for AI-assisted optimization of prompts, scorers, and datasets, and offers framework-agnostic native SDKs for Python, TypeScript, Go, Ruby, and C# with no vendor lock-in. Braintrust is SOC 2 Type II, GDPR, and HIPAA compliant with SSO/SAML integration and granular role-based access control.
About Helicone
Helicone is an open-source AI Gateway and LLM Observability platform that enables developers to route, debug, and analyze their AI applications with end-to-end visibility from user sessions to individual token decisions. As a Y Combinator-backed company, Helicone combines observability with infrastructure management, offering token-level cost analysis, prompt version tracking, and session tracing alongside intelligent routing features like caching, rate limiting, and load balancing. The platform provides real-time dashboards, user metrics tracking, alert systems, and multi-step LLM interaction visualization for root cause analysis. Helicone is SOC 2 Type II certified, HIPAA compliant, and offers flexible deployment options including cloud-hosted gateway leveraging Cloudflare's global network, self-hosted via Kubernetes Helm charts, or SDK-only observability without proxying.
What is Observability, Prompts & Evals?
Tools for monitoring LLM applications in production, managing and versioning prompts, and evaluating model outputs. Includes tracing, logging, cost tracking, prompt engineering platforms, automated evaluation frameworks, and human annotation workflows.
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