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Automation Integration · head to head

Inngest vs Relevance AI

Inngest logo

Inngest

Automation Integration

Unbreakable Agents. Invisible Infra.

From
Free
Rated
-
Full reviewWebsite
Relevance AI logo

Relevance AI

Automation Integration

Specialist AI Agents for Every Task

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Inngest has a free tier, so it costs nothing to try first.
  • Each has a real cost: Inngest hobby plans pause execution once free quota exhausted; upgrade required to continue; Relevance AI no published standard pricing tiers or plans
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Inngest and Relevance AI actually diverge.

Attributes where Inngest and Relevance AI differ
AttributeInngestRelevance AI
Starting priceFreeOn request
Pricing modelfreemiumusage-based
Free tierYesNo

Identical on both: platforms (Web), user rating (Not yet rated), category (Automation Integration).

What people use each for

The jobs each tool is most often brought in to do.

Inngest

  • Handling unpredictable LLM behavior with fine-grained error controlnot Relevance AI
  • Retrying failed workflow steps independently without restartingnot Relevance AI
  • Rate limiting per-tenant usage on shared infrastructurenot Relevance AI
  • Processing thousands of webhooks per event with replay capabilitynot Relevance AI
  • Persisting state across serverless function invocationsnot Relevance AI

Relevance AI

  • AI agent platform for automating business processes with LLMsnot Inngest
  • Low-code automation and workflow orchestration using language modelsnot Inngest

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Inngest

  • Hobby plans pause execution once free quota exhausted; upgrade required to continue
  • Pro plan overages carry tiered metering: additional concurrent steps at $25 per 25, span data at $3/GB, scores at $1.50 per 1K, events at $0.50 per 1M

Relevance AI

  • No published standard pricing tiers or plans
  • Pay-per-task model pricing varies significantly by AI model selection
  • Enterprise quotes require direct contact with sales
  • Task costs range from 0.01 to 0.11 USD depending on model used

Pricing, plan by plan

Inngest

Free
  • HobbyFree
    • 50k executions/month
    • 5 concurrent steps
    • 500 MB span data
  • Pro$99/month starting
    • 1M executions included, pay-as-you-go up to 20M
    • 100+ concurrent steps
    • 5 GB span data ingested
  • Enterprise$null/custom
    • customizable metrics
    • 90-day trace retention
    • SAML, RBAC, audit trails

Relevance AI

On request

No published plan breakdown. See the Relevance AI review.

Which should you pick?

Choose Inngest if

  • You want to start without paying.
Inngest review

Choose Relevance AI if

Nothing in the data separates Relevance AI from Inngest on the points above - pick on price and on how each one feels to use.

Relevance AI review

Questions people ask

Is Inngest or Relevance AI better?
Neither clearly leads. Inngest starts at Free and Relevance AI at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Inngest or Relevance AI?
Inngest has a free tier; the other does not. Paid plans start at Free for Inngest and On request for Relevance AI.
Does Inngest or Relevance AI run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Inngest for free?
Yes. Inngest has a free tier, so you can try it without paying. Relevance AI starts at On request.
What is Inngest best used for?
Inngest is most often used for handling unpredictable llm behavior with fine-grained error control, retrying failed workflow steps independently without restarting, rate limiting per-tenant usage on shared infrastructure, processing thousands of webhooks per event with replay capability. Of those, handling unpredictable llm behavior with fine-grained error control and retrying failed workflow steps independently without restarting are not what Relevance AI is typically brought in for.

Answered from the vendors’ own pages

Inngest: How much does Inngest cost?

Inngest offers a free Hobby plan with 50k executions per month and up to 3 users. Pro plans start at $99 per month with 1M executions included and support for up to 15 users. Additional Pro users cost $10 each. Enterprise plans require custom pricing.

Source
Relevance AI: What is Relevance AI's pricing model?

Relevance AI uses a pay-per-task model where costs vary by AI model selected. Average cost per task is approximately 0.09 USD, with actual costs ranging from 0.01 to 0.11 USD depending on which model the system routes to. The platform automatically selects the lowest-cost model that meets performance requirements.

Source
Inngest: Is there a free version of Inngest?

Yes, the Hobby plan is completely free and includes 50k executions per month, 5 concurrent steps, 500 MB span data ingested, 10K scores, 500k events ingested, and support for up to 3 users. Plan changes pause execution once the free quota is exhausted.

Source
Relevance AI: How much do Relevance AI tasks cost?

Task costs depend on model selection. Example usage shows customers spending 11800 USD monthly while processing 1.24 million tasks. For enterprise custom pricing, users must book a demo or contact the sales team.

Source
Inngest: What are the overage costs on Inngest Pro?

Inngest Pro includes 1M executions with additional executions at $0.50 per 1M up to 20M. Span data overages cost $3 per GB, scores at $1.50 per 1K, and events at $0.50 per 1M. Additional concurrent steps cost $25 per 25 steps beyond the included 100+.

Source
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