Quick Answer
Last verified:
High confidence

Datadog LLM Observability costs Free to $41 per month as of August 2026, with 5 plans available including a free tier. Plans: Free (free), Pro at $18/month, Enterprise at $27/month, DevSecOps Pro at $27/month, and DevSecOps Enterprise at $41/month. Pricing depends on your chosen tier, contract length, and negotiated discounts.

Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.

  • Free tier: Yes

Datadog LLM Observability offers 5 pricing tiers: Free, Pro, Enterprise, DevSecOps Pro, DevSecOps Enterprise. A free plan is available. Paid plans include Pro at $18/per host, per month, Enterprise at $27/per host, per month, DevSecOps Pro at $27/per host, per month.

Last verified: | Sources: 1 pricing pages and reviews
Know Before You Buy — Try Datadog LLM Observability Free

Datadog LLM Observability lists $0-$41/month, but hidden costs like implementation and support add to the total as of August 2026. Key hidden costs: ai workload bill increases, token ingestion, session billing (rum integration). Verified from 1 sources by CostBench.

Hidden Costs Breakdown

1

AI Workload Bill Increases

critical implementation

AI workloads, particularly when integrating LLM Observability, can cause bill increases ranging from 40% to 200%.

industry

AI workloads, in particular, can cause bill increases ranging from 40% to 200%

2

Token Ingestion

medium overage

Datadog charges approximately $0.10 per 1,000 tokens for both prompts and completions in LLM Observability.

industry

Specific costs associated with LLM Observability include: * Token Ingestion: Approximately $0.10 per 1,000 tokens, which covers both prompts and completions

3

Session Billing (RUM Integration)

medium addon

Integrating LLM Observability with Real User Monitoring (RUM) incurs additional charges of approximately $1.50 per 1,000 sessions for end-to-end AI visibility.

industry

Session Billing: If LLM Observability is integrated with Real User Monitoring (RUM), additional charges of approximately $1.50 per 1,000 sessions apply for end-to-end AI visibility

4

Automatic LLM Premium

high addon

LLM Observability can automatically activate a premium of approximately $120 per day when AI spans are detected, with no apparent opt-out option.

industry

Automatic Premium: Datadog's LLM Observability can automatically activate a premium of approximately $120 per day when AI spans are detected, with no apparent opt-out option

5

Per-Host Billing (High-Water Mark)

high overage

Datadog uses a high-water mark system for per-host billing in dynamic environments, charging for peak usage throughout the month based on a broadly defined 'host'.

industry

This includes per-host billing in dynamic environments, where a "host" can be broadly defined and a high-water mark system bills for peak usage throughout the month

6

Log Indexing

medium overage

Log management incurs costs for indexing ranging from $1.70 to $2.55 per million log events, depending on retention.

industry

Log management also incurs costs for ingestion ($0.10 per GB) and indexing ($1.70 to $2.55 per million log events depending on retention)

7

LLM Requests

medium overage

Datadog's LLM Observability is priced at $8 per 10,000 monitored LLM requests per month.

industry

LLM Requests: Datadog's LLM Observability is priced at $8 per 10,000 monitored LLM requests per month.

8

Volume-Based Fees

high addon

Datadog's ingestion pipeline automatically routes LLM data into the LLM Observability product, triggering volume-based fees separate from existing APM contracts.

industry

Volume-Based Fees Separate from Existing Contracts: Datadog's ingestion pipeline automatically routes LLM data into the LLM Observability product, triggering volume-based fees separate from existing Application Performance Monitoring (APM) contracts.

9

Custom Metrics Overages

high overage

Datadog charges a premium for custom metrics, with overages on the Pro plan billed at $5.00 per 100 custom metrics/month after 100 included per host, and Enterprise plans charging $2 per 100,000 additional custom events after 200 included per host.

industry

On the Pro plan, 100 custom metrics per host are included, with overages billed at $5.00 per 100 custom metrics/month.

10

Tiered Retention

medium overage

Different retention periods for logs and spans significantly impact costs, with longer retention periods increasing the expense.

industry

Longer retention periods increase the expense.

11

Infrastructure and APM Costs

high addon

LLM Observability often layers on existing Datadog services, with Infrastructure monitoring costing $15/host/month (Pro, annual) or $23/host/month (Enterprise, annual), and APM costing $31-$40 per host per month plus overages of $0.10/GB for additional span ingestion and $1.27–$2.50 per million additional indexed spans.

industry

Each APM host includes an allotment of 150 GB of ingested spans and 1 million indexed spans per month, with overages charged at $0.10/GB for additional span ingestion and $1.27–$2.50 per million additional indexed spans.

12

Product Sprawl

high addon

Datadog offers over 20 separately priced products, and enabling multiple products can lead to costs stacking up rapidly.

industry

Product Sprawl: Datadog offers over 20 separately priced products, and enabling multiple products (e.g., Infrastructure, APM, Log Management, RUM, Synthetics, AI Observability) can lead to costs stacking up rapidly.

13

Unexpected Cost Escalation

critical overage

Many teams report actual bills being 2 to 3 times higher than initial estimates, with one real-world comparison showing a 58x cost difference compared to an alternative for identical telemetry data.

industry

Unexpected Cost Escalation: Many teams report actual bills being 2 to 3 times higher than initial estimates due to the compounding effect of logs, APM, and custom metrics.

Frequently Asked Questions

01 What hidden costs should I budget for with Datadog LLM Observability?

Beyond the license fee, budget for: AI Workload Bill Increases (40% to 200%); Token Ingestion ($0.10 per 1,000 tokens); Session Billing (RUM Integration) ($1.50 per 1,000 sessions); Automatic LLM Premium ($120 per day); Log Indexing ($1.70 to $2.55 per million log events); LLM Requests ($8 per 10,000 monitored LLM requests per month); Custom Metrics Overages ($5.00 per 100 custom metrics/month (Pro), $2 per 100,000 additional custom events (Enterprise)); Infrastructure and APM Costs ($15/host/month (Pro, annual), $23/host/month (Enterprise, annual), $31-$40 per host per month (APM), $0.10/GB (span ingestion overage), $1.27–$2.50 per million (indexed span overage)); Unexpected Cost Escalation (2 to 3 times higher than initial estimates, 58x cost difference). Exact totals depend on your deployment size and negotiated terms.

02 Does Datadog LLM Observability charge for implementation?

Datadog LLM Observability implementation is not included in the license cost. AI workloads, particularly when integrating LLM Observability, can cause bill increases ranging from 40% to 200%.. Estimated impact: 40% to 200%.

03 How much does Datadog LLM Observability support cost?

Premium support pricing for Datadog LLM Observability depends on your tier and contract terms. See the sourced cost breakdown above for any verified figures we have.

04 Are there overage or storage costs with Datadog LLM Observability?

Datadog charges approximately $0.10 per 1,000 tokens for both prompts and completions in LLM Observability. Estimated impact: $0.10 per 1,000 tokens.

05 What add-ons cost extra with Datadog LLM Observability?

Add-on pricing for Datadog LLM Observability varies by feature. The sourced cost breakdown above lists any verified add-on costs we have.

Now You Know the Real Cost — Try Datadog LLM Observability Free

Check current Datadog LLM Observability pricing

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