Tool A
Braintrust
Enterprise AI evaluation, prompt playground, and continuous LLM monitoring
Tool B
Portkey
Production AI gateway, load-balancing, and LLMOps control plane
Choose this if…
Braintrust
- 1You need Code Execution
Choose this if…
Portkey
- 1You need Open Source
Overview
Braintrust is an enterprise-grade AI evaluation, prompt engineering, and LLM observability platform built to help software teams safely iterate and deploy generative AI features to production. It bridges the gap between ad-hoc prompt tweaking and rigorous software engineering CI/CD workflows. With Braintrust, teams run automated evaluation benchmarks on every prompt change, comparing output quality, hallucination rates, and latency across multiple LLM versions before committing changes to production codebases.
The platform features an interactive collaborative prompt playground where non-technical product managers and engineers can experiment with system prompts against real customer test cases. Its runtime proxy captures production logs, auto-flags anomalies, and builds curated regression datasets from live traffic. Braintrust is designed with privacy-first architecture, supporting secure client-side proxying and encrypted evaluation pipelines trusted by high-growth startups and Fortune 500 enterprises.
Portkey is an enterprise-grade AI Gateway and LLMOps control plane designed to make production AI applications fast, reliable, and cost-efficient. By acting as a unified proxy between your applications and 250+ LLMs, Portkey handles automated provider fallbacks, load balancing, rate-limiting, and semantic caching with zero code changes. Engineering teams use Portkey to eliminate single-provider downtime risks (e.g. automatic failover from OpenAI to Anthropic during outages) while cutting inference latency and API costs by up to 40% through intelligent semantic caching.
Portkey provides comprehensive real-time observability, tracing every request, token cost, and latency percentile in a unified dashboard. The gateway supports fine-grained budget limits, user-level rate-limiting, and content moderation guardrails to protect production systems from abuse. With ultra-fast 10ms gateway overhead and SOC 2 Type II compliance, Portkey is engineered for high-throughput enterprise workloads.
Features Comparison
22 totalPricing & Plans
Free tier with up to 1,000 evaluations/month, collaborative prompt playground, and basic tracing
Team from $100/mo and Enterprise with custom dataset volume, self-hosted proxy, and SOC 2 security
Free tier with up to 10,000 monthly requests, universal API routing, and basic logging
Growth at $99/mo for multi-provider load balancing, semantic caching, and team guardrails
Pros & Cons
Pros
Integrates AI evaluations directly into automated CI/CD testing pipelines
Collaborative prompt playground allows product managers and engineers to align on prompts
Transforms production logs into curated regression test datasets automatically
Supports custom programmatic scorers and LLM-as-a-judge evaluation frameworks
Enterprise-grade security with SOC 2 compliance and encrypted telemetry
Cons
Targeted primarily at professional engineering teams rather than casual solo builders
Team tier subscription starts at $100/mo for growing data volumes
Pros
Automated multi-provider fallbacks and load balancing prevent application downtime
Semantic caching cuts API costs and reduces response latency by up to 40%
Single unified API format for 250+ language models and embedding endpoints
Fine-grained user budget controls and rate-limiting guardrails
Blazing fast gateway proxy with sub-10ms added latency
Cons
Advanced semantic caching features require a paid subscription tier
Self-hosted enterprise gateway deployment requires custom support contract
Use Cases
The Verdict
Braintrust
9/22 features · ⭐4.8
Braintrust is an enterprise-grade AI evaluation, prompt engineering, and LLM observability platform built to help software teams safely iterate and deploy gener…
Portkey
9/22 features · ⭐4.8
Portkey is an enterprise-grade AI Gateway and LLMOps control plane designed to make production AI applications fast, reliable, and cost-efficient. By acting as …
Both Braintrust and Portkey are capable AI tools serving distinct use cases. Both tools are evenly matched on feature coverage — the right pick comes down to your specific workflow and budget.
Frequently Asked Questions
What is the main difference between Braintrust and Portkey?
Braintrust — "Enterprise AI evaluation, prompt playground, and continuous LLM monitoring" — focuses on agent-ai, productivity-ai, while Portkey — "Production AI gateway, load-balancing, and LLMOps control plane" — targets agent-ai, automation-ai. The key differences lie in their feature sets and pricing models.
Is Braintrust free to use?
Yes, Braintrust offers a free tier. Free tier with up to 1,000 evaluations/month, collaborative prompt playground, and basic tracing
Is Portkey free to use?
Yes, Portkey offers a free tier. Free tier with up to 10,000 monthly requests, universal API routing, and basic logging
Which is better: Braintrust or Portkey?
It depends on your use case. Braintrust is rated ⭐4.8 and is best suited for developers, product-managers, ai-engineers, enterprises, teams. Portkey is rated ⭐4.8 and is ideal for developers, ai-engineers, engineering-managers, startups, enterprises. Use this comparison to evaluate features that matter to your workflow.
Does Braintrust have an API?
Yes, Braintrust provides API access for developers and integrations.
More AI Matchups
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