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AI · head to head

Helicone vs NotebookLM

Helicone logo

Helicone

AI

Open-source LLM observability and gateway platform for AI applications

From
Free
Rated
-
Full reviewWebsite
NotebookLM logo

NotebookLM

AI

Google research assistant that grounds answers in user-uploaded documents

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Helicone the free Hobby plan is capped at 10,000 requests per month, which teams with production traffic can exceed quickly.; NotebookLM requires Google account; no standalone access without Gmail or Google Workspace
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Helicone and NotebookLM actually diverge.

Attributes where Helicone and NotebookLM differ
AttributeHeliconeNotebookLM
Platformsweb, apiWeb

Identical on both: starting price (Free), pricing model (freemium), free tier (Yes), user rating (Not yet rated), category (AI).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Helicone

  • Request dashboard and tracking
  • Sessions and segments
  • Helicone Query Language (HQL)
  • Prompt datasets and improvement
  • Playground
  • Rate limits and alerts

Only in NotebookLM

Nothing recorded that Helicone does not also cover.

What people use each for

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

Helicone

  • Monitoring cost and latency of production LLM applicationsnot NotebookLM
  • Debugging multi-step agent sessionsnot NotebookLM
  • Managing and iterating on prompts across a teamnot NotebookLM
  • Routing requests across multiple LLM providersnot NotebookLM

NotebookLM

  • Research synthesis and document analysis for students and academicsnot Helicone
  • Knowledge extraction from large document sets for business intelligencenot Helicone
  • Audio-based learning through generated overviews and lecturesnot Helicone
  • Grounded Q&A over proprietary documents or repositoriesnot Helicone

Where each one falls short

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

Helicone

  • The free Hobby plan is capped at 10,000 requests per month, which teams with production traffic can exceed quickly.
  • Advanced compliance features like SOC 2 and HIPAA are only available starting at the $799/month Team plan.
  • Usage beyond the free tier is billed on top of the base subscription, adding cost unpredictability at scale.
  • On-premises deployment is restricted to the custom Enterprise tier.

NotebookLM

  • Requires Google account; no standalone access without Gmail or Google Workspace
  • Free tier details not published; unclear what features or usage limits apply
  • Upgrade options mentioned but not specified in available public documentation
  • Limited integrations outside Google Workspace ecosystem

Pricing, plan by plan

Helicone

Free
  • HobbyFree
    • 10,000 free requests
    • 1 GB storage
    • 1 seat
  • Pro$79/month
    • 10K free requests included, usage-based beyond
    • 7-day free trial
    • Unlimited playgrounds and workspaces
  • Team$799/month
    • 5 organizations
    • SOC 2 and HIPAA compliance
    • Dedicated Slack channel access
  • Enterprise$undefined/mo
    • Custom MSAs and SAML SSO
    • On-premises deployment
    • Bulk cloud discounts

NotebookLM

Free

No published plan breakdown. See the NotebookLM review.

Which should you pick?

Choose Helicone if

  • You need request dashboard and tracking.
  • You want to start without paying.
  • You work on web, api.
  • You also want sessions and segments.
Helicone review

Choose NotebookLM if

  • You want to start without paying.
NotebookLM review

Questions people ask

Is Helicone or NotebookLM better?
Neither clearly leads. Helicone starts at Free and NotebookLM at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Helicone or NotebookLM?
Helicone starts at Free and NotebookLM at Free.
Does Helicone or NotebookLM run on more platforms?
Helicone runs on web, api. NotebookLM runs on Web.
Can I use Helicone for free?
Both have a free tier, so you can try either at no cost before committing.
What is Helicone best used for?
Helicone is most often used for monitoring cost and latency of production llm applications, debugging multi-step agent sessions, managing and iterating on prompts across a team, routing requests across multiple llm providers. Of those, monitoring cost and latency of production llm applications and debugging multi-step agent sessions are not what NotebookLM is typically brought in for.
What can Helicone do that NotebookLM cannot?
Helicone covers Request dashboard and tracking, Sessions and segments, Helicone Query Language (HQL), Prompt datasets and improvement.

Answered from the vendors’ own pages

Helicone: What does Helicone cost?

Helicone offers a free Hobby plan, a Pro plan at $79/month, a Team plan at $799/month, and custom Enterprise pricing, with usage-based charges applying beyond included request limits.

Source
Helicone: Is there a free plan, and what are its limits?

The free Hobby plan includes 10,000 requests per month, 1 GB of storage, 1 seat, and 1 organization, aimed at kickstarting AI projects.

Source
Helicone: Are there discounts available?

Helicone offers 50% off the first year for qualifying startups, discounts for non-profits, a $100 annual credit for open-source projects, and free access for students.

Source
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