Braintrust Alternatives
Every Braintrust alternatives roundup online is written by one of the tools it ranks first. This one isn't.
LangSmith, Langfuse, Arize AI, Galileo AI, and Helicone are the five real Braintrust alternatives worth pricing out, and most of the write-ups comparing them right now are published by a vendor with a stake in which one wins: Confident AI's own comparison ranks Confident AI best, PostHog's comparison only fully details PostHog, TrueFoundry's ranks TrueFoundry first. This page has no evaluation product to sell, so it verifies every tier against each vendor's own current pricing page and covers the one question none of those roundups ask: what happens after the agent ships, when a customer outside your own team wants to know what it actually did.
Why teams start comparing
What Braintrust does well, and the three reasons teams still look elsewhere
Braintrust treats evaluation, the scoring, the regression testing, the dataset management, as its main product with tracing built around it, rather than a tracer with evaluation added on. Its free Starter tier is genuinely generous on seats, unlimited users, projects, datasets, and experiments, with ten dollars of model credit and fourteen days of retention, and Pro runs $249 a month flat, no per-seat charge, for five gigabytes of processed data and fifty thousand scores before overage. For a team that has already built CI/CD regression gates around Braintrust's scoring API, that combination, evaluation-first tooling with a flat account price, is genuinely the right call and there is no reason to look further. The direct Braintrust vs Langfuse comparison goes deeper on that one specific trade-off, evaluation depth against tracing cost, than the fuller shortlist below does.
Three things still send teams shopping. Braintrust bills against three separate meters, model credit, processed data at $3 to $4 a gigabyte in overage, and evaluation scores at $1.50 to $2.50 per thousand past the included allowance, and working out what a real month of usage will cost before the invoice arrives takes more math than a single-meter tool like Langfuse. Some teams want tracing to be the starting point rather than a feature built around evaluation, which is the pitch LangSmith and Langfuse lead with. And some teams want to know roughly what Enterprise costs before a sales call: Braintrust's Enterprise tier has no published price at all, while Langfuse states a $2,499-a-month Enterprise starting point directly on its own pricing page.
Five alternatives, verified against their own pricing pages
What LangSmith, Langfuse, Arize AI, Galileo AI, and Helicone actually cost
Every figure below comes from each vendor's own pricing page as of this page's publish date, not a list price a third-party roundup forgot to update.
LangSmith
Built by the LangChain team, so it reads LangChain and LangGraph internals natively rather than through a generic hook. Developer is free for one seat and five thousand base traces a month. Plus runs $39 a month per seat with unlimited seats and ten thousand base traces included. Both tiers meter overage separately, $1.50 per Compute Unit and $1 per Storage Unit past the base allowance, and Enterprise is custom priced with self-hosted and hybrid deployment on top.
Langfuse
Tracing and evaluation combined in one open source tool, with a genuinely free self-hosted option and no usage cap. Cloud pricing starts at $0 for fifty thousand units a month across two seats with thirty days of data access, Core runs $29 a month for a hundred thousand units and unlimited seats with ninety days of access, Pro is $199 a month for the same hundred-thousand-unit allowance with three years of access, and Enterprise starts at $2,499 a month, published on its own pricing page rather than sales-quoted only.
Arize AI
Unlimited seats and unlimited evaluations on every tier, so cost scales with data instead of headcount. AX Free covers twenty five thousand spans and one gigabyte of ingestion with fifteen days of retention. AX Pro is $50 a month for fifty thousand spans, ten gigabytes of ingestion, and thirty days of retention, and AX Enterprise is custom priced with self-hosted deployment available. Full Arize pricing breakdown here.
Galileo AI
Evaluation-first like Braintrust, but at less than half the entry price. Free covers five thousand traces a month with unlimited users and unlimited custom evaluations. Pro is $100 a month billed yearly for fifty thousand traces, standard role-based access control, and advanced analytics, and Enterprise scales past that with custom rate limits and dedicated support, custom priced. Full Galileo AI pricing breakdown here.
Helicone
A lighter-weight proxy for cost and request tracking rather than a full evaluation suite. The free Hobby tier covers ten thousand requests, one gigabyte of storage, and seven-day retention on a single seat. Pro is $79 a month with unlimited seats and thirty-day retention, Team runs $799 a month with SOC 2 and HIPAA compliance, and Enterprise adds SAML SSO and on-premises deployment, custom priced.
What none of the five answer
Every one of them scores your agent. None of them show your customer what it's worth
Every published rundown of Braintrust alternatives describes the same audience: an engineering team choosing where to send evaluation runs and traces. Confident AI's rundown of seven tools, PostHog's comparison, and TrueFoundry's rundown of seven all build the entire piece around setup effort, framework fit, and pricing tiers, and not one of them raises the question of whether a customer outside the company should ever see any of it. That holds across LangSmith, Langfuse, Arize AI, Galileo AI, and Helicone too, and it held for Braintrust itself: every dashboard is built for the team that shipped the agent, scoped to one account, with no notion of a paying customer as a separate audience with numbers of their own.
If you sell an AI agent inside a product other companies pay for, that gap becomes the second problem right after evaluation gets handled. A customer renewing a contract wants their own deflection rate and cost per resolution, scoped to their own traffic only, and none of the five tools above, or Braintrust, were built with a second tenant layer in mind. AiAgRe's Node SDK connects to a LangChain, LlamaIndex, or CrewAI agent the same way an evaluator or tracer does, tags each event with an organization identity and a customer identity at the point of ingestion, and turns that into white-labeled dashboard components a customer sees inside your own product instead of a shared login to whichever tool replaced Braintrust. It doesn't replace the pre-launch evaluation work these tools do well: most teams keep one of them running for scoring an agent before it ships, and add AiAgRe for proving what it did once real customers are using it.
The honest answer, not the sales pitch
Three signs switching away from Braintrust isn't worth it yet
None of these show up in a feature comparison table. They show up once the migration is actually on the calendar.
Unlimited seats already fits how the team is growing
Braintrust's flat per-account pricing, not per-seat, means a twenty-person team pays the same $249 a month as a five-person one once it crosses the Pro tier. LangSmith and most seat-based alternatives lose that advantage fast as headcount grows.
CI/CD regression gates already run against Braintrust's API
A team that has wired Braintrust's scoring API into its deploy pipeline has real engineering time sunk into that integration. Rebuilding those gates on a new vendor's API usually costs more in migration time than whatever billing predictability or lower entry price it buys back.
The overage math, once worked out, is actually fine
The three-meter billing model looks unpredictable until it's run against real traffic. A team that does that math and finds Braintrust's Pro tier lands cheaper than a per-seat alternative like LangSmith Plus at its actual headcount has no real reason to switch on cost alone.
FAQs
Braintrust alternatives: frequently asked questions
Common questions from teams pricing a Braintrust alternative before they switch, or before they add a second tool on top.
What makes a team start looking for a Braintrust alternative?
Three reasons come up most often. Braintrust bills against three separate meters at once, model credit, processed data, and evaluation scores, and once a team goes past the included allowance on any one of them, the overage math ($3 to $4 per gigabyte of data, $1.50 to $2.50 per thousand scores, depending on tier) takes real work to predict before a bill arrives. Some teams want a tool that starts from tracing and reads their framework's internals natively, which is the pitch LangSmith and Langfuse lead with instead of Braintrust's evaluation-first approach. And some teams simply want to know what Enterprise costs before talking to sales, something Braintrust never publishes at all, while Langfuse at least states a $2,499-a-month Enterprise starting price on its own site.
Which Braintrust alternative fits a LangChain or LangGraph team best?
LangSmith is the closest fit if the agent already runs on LangChain or LangGraph, since it is built by the same team and reads the framework's internals natively rather than through a generic SDK hook. Langfuse is worth a look if the team wants tracing and evaluation combined in one tool with a genuinely free, unlimited self-hosted option. Arize AI fits better if unlimited seats and unlimited evaluations on every tier matter more than the lowest entry price, since its cost scales with data volume instead of headcount. Galileo AI is the pick for a team that wants an evaluation-first tool like Braintrust but at less than half the entry price of Braintrust's Pro tier, and Helicone fits a team that only needs lightweight request and cost tracking, not full evaluation depth.
Is LangSmith or Langfuse actually cheaper than Braintrust?
At the free tier, both start ahead of Braintrust on at least one dimension: Langfuse's Hobby plan covers fifty thousand units a month with thirty days of data access against Braintrust Starter's fourteen-day retention, though Braintrust Starter includes unlimited users where Langfuse Hobby caps at two seats. Past the free tier the three get harder to compare directly, since a Braintrust score, a Langfuse unit, and a LangSmith trace are three different meters billed at three different rates. Braintrust's flat $249-a-month Pro tier beats LangSmith's $39-per-seat Plus plan once a team passes roughly six or seven seats, a crossover worked out in full on the LangSmith vs Braintrust page, and Langfuse's Pro tier at $199 a month undercuts Braintrust's $249 flat fee at any headcount, though it covers a different unit entirely.
Does switching away from Braintrust mean losing LangChain, LlamaIndex, or CrewAI support?
No, it does not. LangSmith, Langfuse, Arize AI, Galileo AI, and Helicone all integrate with LangChain, LlamaIndex, and CrewAI through an SDK hook or callback handler, the same general pattern Braintrust uses today. Moving evaluation and tracing tools does not mean rebuilding an agent that already runs on any of those frameworks. AiAgRe's own Node SDK ships the same three integrations, which is why it sits alongside whichever tool replaces Braintrust rather than asking a team to change how the agent is built and observed in the first place.
Is there a real reason to stay on Braintrust instead of switching?
Yes, and it is worth saying plainly since most roundups skip it. Braintrust gives unlimited users, projects, datasets, and experiments even on its free Starter tier, a deal none of the five alternatives on this page fully match at the same price point, and its flat per-account pricing (not per-seat) means a large team pays the same $249 a month as a five-person team once it crosses the Pro tier. A team that has already built CI/CD gates and regression testing around Braintrust's scoring API also has real migration cost to weigh against whatever the switch is meant to fix. Switching only pays off once the specific gap, billing predictability, a lower entry price, or framework-native tracing, actually costs more than the migration itself.
Do any of these five alternatives let a customer see their own dashboard?
No. LangSmith, Langfuse, Arize AI, Galileo AI, and Helicone all render results inside a workspace scoped to your own account, built for your own engineers, with no separate view for a customer outside your company, the same limit Braintrust itself has. AiAgRe covers that second job specifically: a Node SDK that reads the same kind of trace and score data these tools already produce and turns it into a white-labeled dashboard your own customer sees inside your product, scoped so one customer never sees another customer's numbers.
Can I run AiAgRe alongside Braintrust or any of these alternatives?
Yes, and that is the usual setup rather than a workaround. AiAgRe's SDK taps the same underlying agent events a tracer or evaluator already reads, tags each one with an organization and customer identity at ingestion, and does not require removing whichever tool is already scoring the agent. Most teams keep one of the five tools on this page, or Braintrust itself, running for evaluation and debugging, and add AiAgRe's dashboard components for what their own customers see once the agent is live.
Does AiAgRe replace Braintrust or any of its alternatives?
No, and it is not trying to. Braintrust, and every alternative on this page, is built for scoring and testing an agent for the team that shipped it: regression datasets, prompt evaluation, CI/CD gates, trace-level debugging. AiAgRe starts only once that part is done, reading the same events a tool like Braintrust or LangSmith already scores and turning them into the deflection rate, cost per resolution, and resolution rate your own paying customer sees. Most teams run one of the tools above for the first job and add AiAgRe for the second, rather than asking one tool to do both.
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