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Helicone vs Braintrust
Trust Score comparison · March 2026
Signal Comparison
18k / wknpm downloads12k / wk
180 commitsCommits (90d)120 commits
3k ★GitHub stars1.2k ★
20 q'sStack Overflow10 q's
MediumCommunityMedium
HeliconeBraintrust
Key Differences
| Factor | Helicone | Braintrust |
|---|---|---|
| License | Apache 2.0 | Proprietary |
| Language | TypeScript | TypeScript / Python |
| Hosted | Self-hosted | Self-hosted |
| Free tier | — | — |
| Open Source | ✓ Yes | — |
| TypeScript | ✓ | ✓ |
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
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
Side-by-side Quick Start
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 automaticallyBraintrust
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 },
});Community 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.