Fiddler AI vs HoneyHive (2026)
vs
Overview
Rating
10.0 / 10
Rating
10.0 / 10
Best For
Enterprises in regulated industries (financial services, healthcare, insurance, government) running AI agents and predictive ML models
Best For
Enterprise teams managing prompts and running evals
Product Summary
Fiddler AI is an enterprise platform for observing, evaluating, and governing AI agents and ML models, with guardrails that run in your own environment.
Product Summary
Prompt management + regression evals in one platform. SOC 2 compliant with annotation queues.
Starting Price
0
Starting Price
paid
Free Trial
No
Free Trial
No
Free Version
Yes
Free Version
No
Website
Website
Key features
Core capabilities each platform advertises.
- Agentic observability across multi-step agent workflows
- Continuous evaluations from testing through production
- Inline guardrails for PII, PHI, prompt injection, and jailbreaks
- AI governance, risk, and compliance reporting
- Prompt management
- Regression testing
- SOC 2
- Annotation queues
Strengths and tradeoffs
What each tool does well, and the limitations to keep in mind.
Pros
- Covers AI agents and predictive ML models in one platform
- Evaluations and guardrails run in-environment, with no external LLM API call per check
- Free tier includes real-time guardrails
- Supports SaaS, VPC, on-premises, and AWS GovCloud deployment
Cons
- The free tier covers guardrails only; observability starts on the paid Developer plan
- VPC and on-premises deployment require the Enterprise plan
- Every plan on the pricing page starts with a demo request rather than self-serve signup
- No model routing or provider failover, so a gateway is a separate tool
Pros
- Comprehensive observability with OpenTelemetry-native distributed tracing across 100+ LLMs and frameworks
- Strong security and compliance (SOC 2 Type II, GDPR, HIPAA) with flexible deployment options
- Built-in evaluation tools with 25+ pre-built evaluators and human review workflows
- Centralized prompt versioning with Git-native version control and GitOps workflows
- Session replay and multi-agent system visualization for debugging complex AI applications
Cons
- Pricing information not transparently available on website
- May have steep learning curve for teams new to AI observability
- Enterprise-focused features may be overkill for smaller projects
Fiddler AI or HoneyHive — which should you choose?
Choose Fiddler AI if you wantChoose if you want
- Governing AI agents in regulated industries
- Monitoring predictive ML models for drift and performance
- Redacting PII and PHI on agent requests and responses
Choose HoneyHive if you wantChoose if you want
Data not available
Compare Fiddler AI and HoneyHive on your own traffic
10KFree traces/mo
1,000+Models
5 minSetup
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 1,000+ models through one gateway.
Try Respan free