Stax vs Braintrust Comparison in 2025

Stax

Learn More | Visit Site

Stax: Confidently ship LLM apps. Evaluate AI models & prompts against your unique criteria for data-driven insights. Build better AI, faster.

Braintrust

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Braintrust: The end-to-end platform to develop, test & monitor reliable AI applications. Get predictable, high-quality LLM results.

Stax

Launched	2008-11
Pricing Model
Starting Price
Tech used
Tag	Data Analysis,Developer Tools,Data Science

Braintrust

Launched	2023-03
Pricing Model	Freemium
Starting Price	$249 / month
Tech used	Next.js,Vercel,Webpack,HSTS
Tag	Data Analysis,Developer Tools,Software Development

Stax Rank/Visit

Global Rank
Country
Month Visit

Top 5 Countries

Traffic Sources

Braintrust Rank/Visit

Global Rank	196333
Country	United States
Month Visit	174588

Top 5 Countries

60.41%

7.54%

2.36%

2.26%

1.63%

United States India United Kingdom France Belgium

Traffic Sources

3.99%

0.53%

0.13%

10.59%

31.36%

53.36%

social paidReferrals mail referrals search direct

Estimated traffic data from Similarweb

What are some alternatives?

When comparing Stax and Braintrust, you can also consider the following products

Evaligo - Evaligo: Your all-in-one AI dev platform. Build, test & monitor production prompts to ship reliable AI features at scale. Prevent costly regressions.

Flowstack - Flowstack: Monitor LLM usage, analyze costs, & optimize performance. Supports OpenAI, Anthropic, & more.

Deepchecks - Deepchecks: The end-to-end platform for LLM evaluation. Systematically test, compare, & monitor your AI apps from dev to production. Reduce hallucinations & ship faster.

Confident AI - Companies of all sizes use Confident AI justify why their LLM deserves to be in production.