LangWatch vs Portkey
Which Observability AI tool is better in 2026?
LangWatch
Platform for LLM evaluations, agent testing and observability
Portkey
The control plane for production AI
Side-by-side
Portkey is the more established option (raised $18M); pricing is comparable on both sides.
| Metric | LangWatch | Portkey |
|---|---|---|
| Taglinei | Platform for LLM evaluations, agent testing and observability | The control plane for production AI |
| Foundedi | 2023 | 2023 |
| HQi | Amsterdam, NL | San Francisco, US |
| Employeesi | 1-10 | 11-50🏆 |
| Neuron scorei | 60 | 73🏆 |
| Total fundingi | $1.1M | $18M🏆 |
| Latest roundi | Pre-Seed · Jan 2024 | Seed |
| Valuationi | — | — |
| Cheapest paid plani | Pricing not disclosed | Pricing not disclosed |
| Free plani | ✓ | ✓ |
| Free triali | ✗ | ✓ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Open source | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for LangWatch and Portkey.
| Capability | LangWatch | Portkey |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✓ | ✓ |
| Free trial | ✗ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of LangWatch
- Strong in AI Observability
🔵 Strengths of Portkey
- Has raised more capital ($18M vs $1.1M)
- Higher Neuron score (73 vs 60)
- Offers a free trial
Which should you choose?
Choose Portkey if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Observability tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Portkey if you want the most established option — it has raised $18M, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
LangWatch vs Portkey — which is better?
It depends on your priority. LangWatch is the leaner option; Portkey has broader feature depth. See the side-by-side table above.
Is LangWatch cheaper than Portkey?
No — Portkey's cheapest paid plan is Free, while LangWatch's is Open source.
Do LangWatch and Portkey offer free plans?
LangWatch: Yes, has a free plan. Portkey: Yes, has a free plan.
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