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Tools/Braintrust vs Fiddler AI
Braintrust

Braintrust

observability
vs
Fiddler AI

Fiddler AI

observability

Braintrust vs Fiddler AI — Comparison

Overview
What each tool does and who it's for

Braintrust

Turn production traces into evals, compare prompts and models, and improve quality with every release.

I notice that while you've mentioned there are reviews and social mentions for Braintrust, the actual content of those reviews and social media posts wasn't included in your message. The social mentions section only shows placeholder text indicating YouTube videos about "Braintrust AI" without the actual content or commentary from users. To provide an accurate summary of user sentiment about Braintrust, I would need to see the actual text of the reviews and social mentions. Could you please share the specific user feedback and comments you'd like me to analyze?

Fiddler AI

The Fiddler AI Control Plane provides enterprises with visibility, context, and control across the agentic lifecycle with observability, guardrails, a

Trust is a fundamental part of humanity, but with the evolution of AI this decade, we are giving AI the agency to make autonomous decisions that affect people's lives and livelihoods, often without visibility into their reasoning, context for their actions, or control over their behavior. We experienced the early version of this pain firsthand with machine learning models and founded Fiddler to solve it: first with explainability, then expanded to observability to track how models change over time. As agents emerged, the same challenge resurfaced at a larger scale: autonomous systems making consequential decisions across enterprises. Organizations needed not just visibility, but control, a way to govern AI systems at scale. When governance becomes necessary, a Control Plane always emerges to enable organizations to deploy high-performing, compliant, and secure AI systems at scale. Today, Fiddler is the Control Plane for AI Agents. We believe in the promise of AI to benefit and elevate our lives in every way. We are acutely aware of the challenges when AI is deployed without proper oversight and guardrails. Fiddler was founded to bring trust, transparency, and accountability to AI everywhere. As AI systems gain autonomy and make consequential decisions at scale, responsible AI requires more than good intentions: it requires governance. Our Control Plane enables organizations to operationalize responsible AI through continuous monitoring, enforceable policies, and auditable accountability. Our approach is grounded in these principles: Our team of engineers, data scientists, product managers, and sales and marketing experts bring a wide set of skills and experiences from companies like Meta, Google, Lyft, X, Microsoft, and other well-known large companies and high growth startups. Backed by top-tier investors and trusted by Fortune 500 companies worldwide, we're recognized as one of the leading startups shaping the future of enterprise AI. Our culture is built on the values of humility, respect, kindness, transparency, and collaboration. Fiddlers are driven by the mission of the company and work hard to make a difference towards the cause.

Key Metrics
—
Avg Rating
—
0
Mentions (30d)
0
12
GitHub Stars
—
3
GitHub Forks
—
—
npm Downloads/wk
—
—
PyPI Downloads/mo
—
Community Sentiment
How developers feel about each tool based on mentions and reviews

Braintrust

0% positive100% neutral0% negative

Fiddler AI

0% positive100% neutral0% negative
Pricing

Braintrust

subscription + contract + tieredFree tier

Pricing found: $0 / month, $4/gb, $2.50/1k, $249 / month, $3/gb

Fiddler AI

tieredFree tier

Pricing found: $30, $1, $0.002

Features

Only in Braintrust (10)

ObservabilityEvalsEverything you need to build smarter, fasterSOC 2 Type IISSO / SAMLHIPAA compliantGDPR compliantGranular permissionsHybrid deploymentHow Coursera builds next-generation learning tools

Only in Fiddler AI (10)

Evaluate and monitor agents and predictive applications throughout their lifecycle.Analyze and understand agent behavior, model performance, and associated risks.Protect and enforce AI applications with guardrails that prevent costly incidents in real-time.Gain enterprise-wide visibility into AI applications and meet compliance requirements.Evaluate agents and models in development with curated test datasets and stress tests.Run experiments to compare prompts, models, parameters, and guardrail settings.Test for hallucinations, drift, and policy violations before launch.Customize Fiddler evaluators for domain-specific use cases.Integrate external judges from OpenAI, Anthropic, and other providers for advanced reasoning.Support for structured and unstructured data.
Developer Ecosystem
85
GitHub Repos
—
174
GitHub Followers
—
2
npm Packages
—
—
HuggingFace Models
—
—
SO Reputation
—
Product Screenshots

Braintrust

Braintrust screenshot 1Braintrust screenshot 2Braintrust screenshot 3Braintrust screenshot 4

Fiddler AI

Fiddler AI screenshot 1Fiddler AI screenshot 2Fiddler AI screenshot 3Fiddler AI screenshot 4
Company Intel
information technology & services
Industry
information technology & services
130
Employees
110
$121.1M
Funding
$112.7M
Series B
Stage
Series C
Supported Languages & Categories

Braintrust

AI evaluationLLM evaluationAI testingLLM testingAI observability

Fiddler AI

AI/MLFinTechSecurityDeveloper Tools
View Braintrust Profile View Fiddler AI Profile