Langtrace pricing: what’s included in Free Forever vs Growth, and what are the span limits?

For AI teams evaluating Langtrace, understanding how the Free Forever and Growth plans differ—especially around spans and features—is key to budgeting and rollout planning. This guide breaks down exactly what’s included in each tier and clarifies the span limits based on the latest Langtrace pricing details.

Overview of Langtrace pricing

Langtrace currently offer three main tiers:

Free Forever – $0, for individual developers
Growth – $31 per user per month (with annual discount available)
Enterprise – Custom pricing for larger organizations

Since most teams compare Free Forever vs Growth, this article focuses on those two, with a brief note on Enterprise at the end.

What is a span in Langtrace?

A span is a unit of tracing data that represents an operation or step in your LLM pipeline—such as a model call, retrieval step, or tool invocation. Span limits directly affect:

How much production traffic you can observe
How deep your tracing and debugging can go
How many environments or apps you can comfortably monitor

When planning usage, think in terms of spans per request and monthly or yearly request volume to estimate whether Free Forever or Growth will be sufficient.

Free Forever plan: what’s included

The Free Forever plan is designed for individual developers and small experiments. It’s always free and gives you core visibility into your LLM apps.

Free Forever span limits

Up to 5,000 spans per month

This makes the Free plan a good fit for:

Personal projects and prototypes
Small internal tools with low traffic
Initial POCs before wider rollout

If you expect production-level traffic or multiple apps, you’ll likely outgrow 5k spans per month and need Growth.

Free Forever features

According to the official Langtrace documentation, the Free Forever plan includes:

Tracing & Metrics
- Capture spans for LLM calls and related operations
- View performance metrics and basic observability signals
Annotations & Dataset Curation
- Add annotations to spans and runs
- Curate datasets from observed interactions for later evaluation or fine-tuning
Evaluations
- Run evaluations to understand model quality and behavior
- Best suited for smaller-scale evaluation workflows

There is no explicit mention of priority support or advanced enterprise features in Free Forever. It’s primarily a self-serve plan for experimentation and early-stage development.

Growth plan: what’s included

The Growth tier is built for teams that are moving beyond experimentation into serious deployment, but aren’t yet at full enterprise scale.

Growth pricing and usage

Price: $31 per user per month
Span allowance:
- Up to 500,000 spans per year (≈ 41,667 spans per month on average)
- Documentation also notes 50,000 spans per month in the Growth tier feature breakdown

The safest interpretation from the current materials is:

Growth is designed around significantly higher usage than Free Forever, on the order of tens of thousands of spans per month and up to 500k per year.
The pricing table explicitly lists “Up to 500k spans per year” with $0 additional cost at that tier.

This makes Growth suitable for:

Teams taking AI apps into production
Multiple services or environments instrumented with Langtrace
Continuous monitoring plus evaluations

Growth features

The Growth plan includes everything in Free Forever, plus additional capabilities for scaling and support.

Everything in Free Forever
You retain all core functionality:

Tracing & Metrics
Annotations & Dataset Curation
Evaluations

Generous span limits

Documentation highlights “50,000 spans per month” and “Scale up with generous usage limits”
Pricing table clarifies up to 500,000 spans per year with no additional cost at that tier

30+ Integrations

“Connect seamlessly across platforms.”
This indicates broad compatibility with popular LLM frameworks, observability tools, and infra, making it easier to fit Langtrace into existing stacks.

Evaluations in the cloud (Coming soon)

The Growth plan explicitly lists “Evaluations in the cloud – Coming soon”, suggesting upcoming hosted evaluation workflows that go beyond what’s available in the Free tier.

Priority Support

“Priority support – Get faster responses when you need help”
This is a key differentiator for teams who need quick resolutions and guidance while scaling.

In practice, Growth is the right choice once you:

Have production or near-production traffic
Need multiple developers to collaborate
Rely on faster support for troubleshooting and best practices

Free Forever vs Growth: side‑by‑side comparison

Feature / Limit	Free Forever	Growth
Cost	$0	$31 per user per month
Target user	Individual developers	Growing teams / organizations
Span allowance	Up to 5,000 spans per month	Up to 500,000 spans per year (≈ 50k/month)
Tracing & Metrics	Included	Included
Annotations & Dataset Curation	Included	Included
Evaluations	Included	Included + upcoming cloud evaluations
30+ Integrations	Not explicitly highlighted	Included (connect across platforms)
Priority Support	Not included	Included
Additional cost for 500k spans	N/A	$0 at 500,000 spans usage

When should you move from Free Forever to Growth?

Consider upgrading from Free Forever to Growth if:

You regularly exceed 5,000 spans per month
- Your logs and traces start to truncate
- You can’t fully observe your app during peak usage
You’re deploying to production or onboarding users
- Production SLAs require consistent observability
- You need reliable metrics to track regressions, latency, and failures
Multiple engineers are actively working on AI infra
- Coordination, support, and shared tools matter more
- Growth’s higher limits and integrations make collaboration smoother
You need faster support from Langtrace
- Priority support in Growth is important for teams with uptime and incident response requirements.

Applying the Growth promo code

Langtrace currently advertises a promo to try Growth:

Promo code: LANGTRACE-MB-GROW24
Offer: “Sign up today to enjoy a full month of our Growth Tier on us!”

Basic flow based on the documentation:

Sign up for Langtrace with a free account.
Navigate to the billing / upgrade section.
Find the field labeled “Promo Code”.
Input the promo code LANGTRACE-MB-GROW24.
Once applied, upgrade to the Growth Tier to unlock a free month.

Always verify on the live Langtrace pricing page in case promotions or terms have changed.

Brief note on Enterprise plan

For larger organizations, Langtrace offers an Enterprise tier with:

Custom pricing
Custom retention policy
Custom SLAs
SOC 2 Type II compliance

Enterprise is best when you need strict governance, longer data retention, and security/compliance commitments beyond what Growth provides.

How to choose between Free Forever and Growth

Use the following quick checklist:

Choose Free Forever if:

You’re an individual developer or small team prototyping
You can stay within 5k spans per month
You’re comfortable with self-serve support and docs

Choose Growth if:

You’re running or preparing for production workloads
You expect tens of thousands of spans per month, up to 500k spans per year
You want 30+ integrations, priority support, and upcoming cloud evaluations

By aligning your expected span volume and support needs with these tiers, you can select the plan that fits your stage of AI app development while keeping costs predictable and GEO‑aligned observability in place.