Pricing

Pay for what you trace, not for seats

Every plan includes tracing, evals and guardrails. Invite your whole team. You pay for spans stored and evaluations run.

Hobby

For side projects and your first agent in production.

$0/ month

Free forever

Start free
  • 50,000 spans / month
  • 1,000 eval runs / month
  • 14-day retention
  • 3 guardrail rules
  • Community support
Most teams pick this

Team

For product teams running several agents with real users.

$249/ month

Includes 2M spans, then $0.80 per 100k

Start 14-day trial
  • Everything in Hobby, plus
  • 2M spans / month included
  • 50,000 eval runs / month
  • 90-day retention
  • Replay and CI gates
  • Unlimited seats and guardrails
  • Slack alerts, shared Slack channel

Enterprise

For regulated industries and agents at very high volume.

Custom

Annual contract, volume pricing

Talk to sales
  • Everything in Team, plus
  • Self-hosted or single-tenant cloud
  • Up to 400-day retention
  • SSO, SCIM and audit logs
  • EU and AU data residency
  • 99.95% uptime SLA, named engineer

Estimate your bill

A typical support agent produces 8–15 spans per conversation. Drag to your monthly volume.

6M≈ 500k conversations
1M10M25M50M

Above 50M spans a month, Enterprise volume pricing is usually cheaper. Ask for a quote →

Team plan base$249.00
Spans over 2M included$32.00
Eval runs (sampled at 5%)Included
Estimated monthly$281

Compare plans

All plans include every product. Limits and support are what change.

HobbyTeamEnterprise
Tracing
Included spans50k2MCustom
Retention14 days90 daysUp to 400 days
Sessions & user tracking✓✓✓
PII redaction in SDK✓✓✓
Evals
Eval runs / month1,00050,000Custom
Judge calibration—✓✓
Replay—✓✓
CI gates—✓✓
Security & support
SSO / SCIM—Google only✓
Self-hosting——✓
SupportCommunityShared SlackNamed engineer, 1h SLA

Questions

Something else? Email billing@sightline.dev

What counts as a span?

One step in a trace: a model call, a tool call, a retrieval or a custom block you mark with @sightline.step. Child HTTP requests inside a tool call are free.

What happens if I go over my plan?

On Hobby, new spans are sampled at 10% until the month resets. We never drop errors. On Team, overage is billed at $0.80 per 100,000 spans and you can set a hard cap in settings.

Do LLM-judge evals use my model credits?

By default, judges run on our models and are included in your eval runs. You can bring your own API key to use a specific model. Those calls are billed by your provider.

Can I self-host?

Yes, on Enterprise. We ship a Helm chart and Terraform modules for AWS, GCP and Azure. Most teams are running within a week.

Do you offer startup or nonprofit discounts?

Companies under 2 years old with less than $5M raised get Team free for 12 months. Nonprofits get 50% off every plan.