Lunary
Lunary is a hosted LLM logging + prompt desk: you open a Generations table (model, tokens, cost, prompt/output), then version the prompt that produced the row.
OUR TAKE
Pick Lunary for app teams who will pay Team $20/user/month (or self-host the AGPL repo) to open a first Generations table — not Langfuse first unless they want that OSS trace warehouse. New cloud starts at $20/user.
Good fit
App teams who will pay Team $20/user/month (or self-host the AGPL repo) to open a first Generations table — not Langfuse first unless they want that OSS trace warehouse.
Poor fit
Self-host (AGPL) · Team $20/user/mo
USD, before tax · Checked 2026-10-27 · lunary.ai/pricing
OUR TAKE
Pick Lunary for app teams who will pay Team $20/user/month (or self-host the AGPL repo) to open a first Generations table — not Langfuse first unless they want that OSS trace warehouse. New cloud starts at $20/user. Do not invent a public $0 tile for new workspaces.
Good fit
App teams who will pay Team $20/user/month (or self-host the AGPL repo) to open a first Generations table — not Langfuse first unless they want that OSS trace warehouse.
Poor fit
Self-host (AGPL) · Team $20/user/mo
USD, before tax · Checked 2026-10-27 · lunary.ai/pricing
What it costs
USD, before tax · Checked 2026-10-27 · lunary.ai/pricing
Team
50,000 events / month included, then / 50k. 300 playground queries / month, then . Unlimited projects. 1-year history. Prompt management and human reviews. New cloud workspaces require payment before access
Lowest paid
$20/user/mo
Enterprise
Not published by the vendor
Not published by the vendor
Self-host (AGPL)
Not published by the vendor
Not published by the vendor
Checked 2026-10-27·lunary.ai/pricing
Before you pay
Good fit
App teams who will pay Team $20/user/month (or self-host the AGPL repo) to open a first Generations table — not Langfuse first unless they want that OSS trace warehouse.
Watch out
New cloud starts at $20/user. Do not invent a public $0 tile for new workspaces.
Instead, try
Langfuse if traces / evals you can self-host when you want Langfuse’s public Cloud $, not Lunary Team $20; Phoenix if local-first OTel traces when you want Phoenix $0 self-host, not a $20 cloud seat
Compare Lunary with
Limits, in full
- 01
New cloud starts at $20/user. Do not invent a public $0 tile for new workspaces.
- 02
Events over 50k are $10 / 50k. Playground overage is $0.05 / query.
- 03
A Generations , not Langfuse’s self-host traces. For that OSS see Langfuse.
If Lunary isn't it
Why: traces / evals you can self-host when you want Langfuse’s public Cloud $, not Lunary Team $20.
Free· paid from$2/mo
Hobby is two users and 30-day retentionChecked 2026-10-19·langfuse.com/pricing
vs Lunary
Why: local-first OTel traces when you want Phoenix $0 self-host, not a $20 cloud seat.
Free· paid from$50/mo
ELv2, not ApacheChecked 2026-10-27·arize.com/pricing
vs Lunary
Why: Comet’s eval/trace desk when Lunary’s Generations table is not the job.
Free· open source,open source
Free Cloud is 25k spansChecked 2026-10-22·comet.com/site/pricing
vs LunaryLimits & alternatives3 limits · Langfuse, Phoenix, Opik instead
Limits, in full
- 01
New cloud starts at $20/user. Do not invent a public $0 tile for new workspaces.
- 02
Events over 50k are $10 / 50k. Playground overage is $0.05 / query.
- 03
A Generations , not Langfuse’s self-host traces. For that OSS see Langfuse.
If Lunary isn't it
Why: traces / evals you can self-host when you want Langfuse’s public Cloud $, not Lunary Team $20.
Free· paid from$2/mo
Hobby is two users and 30-day retentionChecked 2026-10-19·langfuse.com/pricing
vs LunaryWhy: local-first OTel traces when you want Phoenix $0 self-host, not a $20 cloud seat.
Free· paid from$50/mo
ELv2, not ApacheChecked 2026-10-27·arize.com/pricing
vs LunaryWhy: Comet’s eval/trace desk when Lunary’s Generations table is not the job.
Free· open source,open source
Free Cloud is 25k spansChecked 2026-10-22·comet.com/site/pricing
vs Lunary