Customer Stories

Loved by engineers
shipping autonomous agents.

See why 847 engineering teams trust Reins to govern every dollar their agent fleet spends.

0 Teams
0+ Agents governed
$0M/mo Spend controlled
Priya Nair
@priya_builds
Caught a runaway eval loop in 3 minutes flat. Reins flagged it before it ate through our monthly budget. That single catch saved us $40k in Q1.
↺ 312 ♥ 847
"
We ship agents without fearing the bill now. Budget caps + real-time alerts = the peace of mind we couldn't put a price on — until we did. It turns out it's very reasonably priced.
Marcus Ellroy VP Engineering, Driftline (Series B)
Sofia Ben-David
@sofiabuildsai
Reins made our CFO stop worrying about agent spend. That's literally the whole job done. ROI is obvious.
↺ 189 ♥ 423
Budget Alert — Slack
app.reins.io/alerts
🚨 eval-agent exceeded budget $847.20
Auto-paused at $800 cap ✓ paused
Slack notified in 4s $0 overage
"
The audit log alone is worth it. Full trace of every token, every decision, every dollar. When your compliance team asks "what did the agent do last quarter?" — Reins has the answer.
Dev Okonkwo Head of AI Infra, Meridian Health
Yuki Tanaka
@yukiinfra
Onboarded in 20 minutes. First runaway eval caught within the hour. Setup was the hardest part of the whole thing.
↺ 94 ♥ 210
Aisha Kowalski
CTO · Lattice AI · Series A
We went from "we can't let agents spend unsupervised" to "actually let's give them more budget" in one quarter. Reins changed how we think about agent autonomy.
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847 reactions · 43 comments
Rohan Mehta
@rohanmehta_ai
Used to run spend reviews monthly. Now we do it daily and it takes 5 minutes because Reins surfaces exactly what needs attention. Productivity unlocked.
↺ 156 ♥ 389
"
I was skeptical. How much does spend governance really matter? Then Reins caught a loop that was about to cost us $12k in a weekend. I'm not skeptical anymore.
Lena Hartmann Lead Engineer, Stackwave
Spend Dashboard
app.reins.io/dashboard
Total governed spend $2.4M
Active agents 847
Avg cost per agent/mo $94.20
Budget overruns caught 12
Chioma Obi
@chioma_eng
The NPS went from 34 to 71 once we rolled out Reins. Engineering team stopped dreading the "how much did we spend this month?" question.
↺ 203 ♥ 541
Tobias Reinhardt
Principal Architect · Palantir alum
Finally, an observability layer that treats agent cost as a first-class metric. Everything else just logs it and moves on.
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1.2k reactions · 89 comments
Nadia Volkov
@nvolkov_dev
We gave our support agent a budget. Reins auto-paused it when it hit the cap. Customer didn't notice. Support SLA intact. Exactly what we wanted.
↺ 78 ♥ 167
"
Our agents are doing in two weeks what used to take a quarter. Reins is the reason we can scale them. Without governance, every new agent is a risk. With Reins, it's just math.
Carlos Vega AI Product Lead, Apex Analytics
Amara Johnson
@amaraj_builds
The Slack integration alone is chef's kiss. Budget alert hits our #eng-alerts channel before we're over budget. That's not a nice-to-have. That's a requirement.
↺ 134 ♥ 312
Agent Performance
app.reins.io/agents
code-review-agent $0.04/run
data-synth-agent $2.18/run
doc-gen-agent $0.12/run
support-agent $0.08/run
Jordan Ellis
@jordan_eng
We tried building this in-house. Three engineers, six weeks, one dashboard that nobody trusted. Switched to Reins. Done in an afternoon. Way better.
↺ 445 ♥ 987
"
From "we need to pause agent rollout" to "actually we can triple the fleet." Reins showed us the math. The math said go. We went.
Isabel Santos CEO, Conduit AI (Series A)
Wei Zhang
@wei_devops
Time to detect a budget anomaly: 4 minutes. Time to respond: 30 seconds. Time to sleep soundly: priceless.
↺ 267 ♥ 723
Prashant Rao
Head of Platform · Former Stripe
Reins thinks about agent cost the same way Stripe thinks about payment cost. It's a first-class product concern, not an afterthought.
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2.1k reactions · 134 comments
Ingrid Bjornstad
@ingrid_bjorn
Our agents are now writing better PRDs, doing faster code reviews, and costing less per task than when we didn't have Reins. Go figure.
↺ 88 ♥ 194
"
Our board wanted spend visibility. We gave them Reins. Now board meetings are 20 minutes shorter. True story.
Ben Okafor Co-founder, Narrative AI (Seed)
Budget Rules Config
app.reins.io/rules
Global monthly cap $50,000
Per-agent daily limit $500
Auto-pause threshold 80%
Slack alert threshold 60%
Felix Braun
@felixbraun_de
Our CFO just asked "can we see this data in real-time?" I said yes, because Reins. She's now a believer.
↺ 312 ♥ 681
Mei Lin
Staff Engineer · Scale AI alumni
We were hemorrhaging money on agents nobody was watching. Reins is the seatbelt we needed to let the car go fast.
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1.8k reactions · 76 comments
Anya Petrov
@anya_mleng
We compared Reins against three competitors. None of them had the depth of the audit log. That was the deciding feature.
↺ 201 ♥ 478
"
Best $299/mo we spend on AI tooling. Not close. The per-agent breakdown alone would justify the price. Everything else is value-add.
Samuel Adeyemi Director of Engineering, Nexus AI
Lucia Martinez
@lucia_mtz
The team asked "can we give the agent more budget?" I said yes, because Reins auto-regulates. Nobody's watching the watchers.
↺ 178 ♥ 412
Runaway Detection
app.reins.io/alerts
eval-loop-agent ! runaway
Sessions in last hour 4,821
Spend delta (vs baseline) +1,840%
Auto-pause triggered ✓ yes
"
We went from 12 engineers supervising agents to 1 part-time ops person. Reins automated the oversight. That's not a feature. That's a business model change.
Hana Kobayashi CTO, Relay Systems (Series B)
Kwame Asante
@kwame_platform
Reins + Claude = agents we actually trust. Without it, we'd still be doing manual oversight. Hard pass.
↺ 290 ♥ 644
Omar Khoury
Co-founder & CEO · Cloudnode
Every investor asks about AI cost control. Reins is now part of our standard answer. "Yes, we have governance." Done.
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923 reactions · 58 comments
Fatima Al-Rashid
@fatima_ai
We cut agent spend by 61% in 30 days. Not by using less AI. By allocating better. Reins showed us where the waste was hiding.
↺ 521 ♥ 1,204
"
We measure everything. Agent cost should be no different. Reins makes it measurable, governable, and optimizable. That's the trifecta.
Alex Park Data Engineering Lead, Quorum (F500)
Imani Clarke
@imani_clarke
Reins is the only tool where the team actually thanks me for adding it to the stack. That's a first in three years.
↺ 156 ♥ 334
Raj Patel
VP Product · Ex-Anthropic
Spent two months trying to build spend governance internally. Reins shipped what we couldn't. Good engineering knows when to buy, not build.
Like Comment Repost
3.4k reactions · 218 comments

Trusted by teams at

Verdix
Stratal
Apexlytics
Nexus AI
Driftline
Conduit
Meridian
Quorum
Relay Sys
Cloudnode
Stackwave
Narrative AI
Lattice AI
Palantir
Scale AI
Anthropic
OpenAI
Cohere

What teams are saying

61%
Avg spend reduction
4 min
Avg time to detect
$4.2M
MRR governed
+71
Net promoter score

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Testimonials are illustrative and fictional. All names, companies, and quotes are fabricated for demonstration purposes. Case studies forthcoming.