Alternatives · sourced · verified 2026-10-24
Langfuse alternatives (cheaper)
Answer: As of 2026-10-24, Langfuse states paid entry as $29/mo (100k units, +$8/100k) and a free plan (50k units/mo; all platform features with limits; no card). Among 9 verified LLM observability peers in our dataset, 8 list a free plan and 2 state a lower numeric paid_from than Langfuse. We never invent a blended bill — compare stated fields below or run the free savings estimate.
Key stats
- Langfuse paid from: $29/mo (100k units, +$8/100k)
- Langfuse free: 50k units/mo; all platform features with limits; no card
- Verified peers in category: 9
- Listed alternatives: 9
- Last verified: 2026-10-24
- Source: https://langfuse.com/pricing
Langfuse at a glance
| Field | Recorded value |
|---|---|
| Free plan | Hobby |
| Free limits | 50k units/mo; all platform features with limits; no card |
| Paid from | $29/mo (100k units, +$8/100k) |
| Pricing model | Units-based |
Verified alternatives in LLM observability
| Vendor | Free? | Free limits | Paid from | Checked | Why listed |
|---|---|---|---|---|---|
| Opik (Comet) | Free tier | Cloud: 25k spans/month. Open source: $0 | $19/month | 2026-10-24 | Lower stated paid_from |
| Laminar | Free tier | $0/month | $30/month then $2/GB | 2026-10-24 | Has free plan |
| LangSmith | Free tier | $0/seat; up to 5k base traces/mo; 1 seat | $39/seat/mo (Plus) | 2026-10-24 | Has free plan |
| Portkey | Free tier | 10k recorded logs/month | $49/month (100k logs) | 2026-10-24 | Has free plan |
| Arize AX / Phoenix | Free tier | 25k spans/mo; 1 GB/mo; 10 issues/mo; no card. Phoenix is open source | $50/month | 2026-10-24 | Has free plan |
| Braintrust | Free tier | $0/month; $10 credits; free usage for traces, evals and whole team; no card | $249/month | 2026-10-24 | Has free plan |
| Helicone | Free tier | 10,000 free requests; 1 GB storage; 1 seat | $79/mo | 2026-10-24 | Has free plan |
| W&B Weave | Free tier | $0/mo; Weave ingestion 1 GB/mo | $60/month | 2026-10-24 | Has free plan |
| Lunary | No free tier | No new free workspaces: payment required to activate cloud workspace | $20/user/mo (50,000 events) | 2026-10-24 | Lower stated paid_from |
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Data: Langfuse alternatives as of 2026-10-24. Source: O11y Watch (https://o11y-watch.pages.dev). License: CC BY 4.0. Please attribute "O11y Watch" with a link to https://o11y-watch.pages.dev/.