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Braintrust vs Helicone
Trust Score comparison · March 2026
Signal Comparison
12k / wknpm downloads18k / wk
120 commitsCommits (90d)180 commits
1.2k ★GitHub stars3k ★
10 q'sStack Overflow20 q's
MediumCommunityMedium
BraintrustHelicone
Key Differences
| Factor | Braintrust | Helicone |
|---|---|---|
| License | Proprietary | Apache 2.0 |
| Language | TypeScript / Python | TypeScript |
| Hosted | Self-hosted | Self-hosted |
| Free tier | — | — |
| Open Source | — | ✓ Yes |
| TypeScript | ✓ | ✓ |
Pick Braintrust if…
- Systematic eval-driven development — score outputs across test datasets
- You want a managed product with a polished eval UI
- Running A/B prompt experiments with statistical rigor
Pick Helicone if…
- You want minimal-friction observability — just change your base URL
- Caching identical LLM requests to cut costs
- Quick cost and latency dashboards without SDK changes
Side-by-side Quick Start
Braintrust
import * as braintrust from 'braintrust';
const experiment = braintrust.init('my-project', {
apiKey: process.env.BRAINTRUST_API_KEY,
experiment: 'gpt-4o-baseline',
});
experiment.log({
input: 'What is 2+2?',
output: '4',
expected: '4',
scores: { accuracy: 1.0 },
});Helicone
import OpenAI from 'openai';
const client = new OpenAI({
apiKey: process.env.OPENAI_API_KEY,
baseURL: 'https://oai.helicone.ai/v1',
defaultHeaders: { 'Helicone-Auth': `Bearer ${process.env.HELICONE_API_KEY}` },
});
// All calls are now logged automaticallyCommunity Verdict
Based on upvoted notes🏆
Helicone wins this comparison
Trust Score 73 vs 70 · 3-point difference
Helicone leads on Trust Score with stronger signal data across downloads and community health. That said, the other tool is worth considering if your use case matches its specific strengths above.