Head-to-head · Llm Monitoring
Datadog LLM Observability vs Opik
Datadog LLM Observability leads on 0 checks, Opik on 1, and 4 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreDatadog LLM Observability · 9.1/10
- Lowest starting priceOpik · $19/mo
- Free planboth
- Most featuresDatadog LLM Observability · 3 of 3
Datadog LLM Observability scores higher on our rubric for llm monitoring: 9.1 against 8.6 out of 10; our editors rank them #2 and #6.
Opik is cheaper to start at $19/mo against $160/mo. On deployment options, Opik gives you Both where Datadog LLM Observability offers Cloud.
Datadog LLM Observability is the better fit for teams already using Datadog. Opik is the better fit for teams prioritizing open-source tracing and evaluation.
- Datadog LLM Observability fits best
Teams already using Datadog
- Opik fits best
Teams prioritizing open-source tracing and evaluation
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Side by side
| Feature | Datadog LLM Observability 9.1/10 Visit ↗ | Opik 8.6/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.1 | 8.6 |
| Ranking | #2 in Llm Monitoring | #6 in Llm Monitoring |
| Best for | Teams already using Datadog | Teams prioritizing open-source tracing and evaluation |
| Pricing model | Free plan + paid | Free plan + paid |
| Starting price | $160/mo | $19/mo (best) |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Cloud | Cloud, Self-hosted |
| Platforms | Web | Web |
| Support | Docs | Email, Community, Docs |
| Integrations | 10 integrations | 40+ integrations |
| Built for | Small business, Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features Datadog LLM Observability 3/3 · Opik 2/3 | ||
| LLM tracing | ✓ | ✓ |
| Evaluation support | ✓ | ✓ |
| Alerts | ✓ (best) | Not checked yet |
| Specs | ||
| Deployment options | Cloud | Both |
| Trace retention | 15 days | Not checked yet |
| LLM providers | OpenAI, Anthropic, Gemini, Vertex AI, AWS Bedrock | Not checked yet |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | Datadog LLM Observability, now presented as Agent Observability, helps engineering teams monitor and troubleshoot LLM-powered applications and agents in development and production. It records model calls and workflows at span level,… Read the review → |
Opik is an LLM observability and evaluation platform from Comet for developers building chatbots, retrieval-augmented generation pipelines, and multi-step agents. It captures model calls, tool invocations, retrieval steps, and agent… Read the review → |
Strengths and trade-offs
Datadog LLM Observability — where it wins
- Links agent traces with backend services, infrastructure, and user sessions
- Combines evaluations, datasets, experiments, and annotations
- Free plan includes up to 40K LLM spans per month and full feature access
Where it doesn't
- Cloud-only deployment
- Free and Pro plans both retain traces for 15 days
- Pro costs $160/month with annual billing; extra spans are metered
Opik — where it wins
- Traces model calls, tools, retrieval steps, and agent actions
- Evaluates with datasets, assertions, experiments, and LLM-as-a-judge metrics
- Offers self-hosting and a Free Cloud plan alongside paid cloud tiers
Where it doesn't
- Pro Cloud limits and retention are customizable, so buyers must assess fit
- Enterprise pricing is custom
- Its broad tracing and evaluation workflow may exceed simpler monitoring needs
- Datadog LLM Observability9.1/10 · Free plan
LLM tracing and evaluation with Datadog context, plus a free plan and cloud-only deployment.
Visit DatadogFull verdict → - Opik8.6/10 · Free plan
Trace and evaluate LLM applications in the cloud or on your own infrastructure.
Visit OpikFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update