Is Deepgram or LangSmith better?

Neither clearly leads. Deepgram starts at Free and LangSmith at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Deepgram or LangSmith?

Deepgram has a free tier; the other does not. Paid plans start at Free for Deepgram and On request for LangSmith.

Does Deepgram or LangSmith run on more platforms?

Deepgram runs on web, api. LangSmith runs on Web.

Can I use Deepgram for free?

Yes. Deepgram has a free tier, so you can try it without paying. LangSmith starts at On request.

What is Deepgram best used for?

Deepgram is most often used for building real-time voice agents for customer support, transcribing recorded audio at scale via batch stt, adding conversational text-to-speech to voice applications, self-hosting speech models for data residency requirements. Of those, building real-time voice agents for customer support and transcribing recorded audio at scale via batch stt are not what LangSmith is typically brought in for.

What can Deepgram do that LangSmith cannot?

Deepgram covers Flux speech-to-text, Flux text-to-speech, Voice Agent API, Real-time and batch processing.

AI Tools · head to head

Deepgram vs LangSmith

Deepgram

AI Tools

Voice AI API platform for speech-to-text, text-to-speech, and voice agents

From: Free
Rated: -

Full review Website

LangSmith

Software Development

Know what your agents are really doing

From: On request
Rated: -

Full review Website

The short version

Only Deepgram has a free tier, so it costs nothing to try first.
Each has a real cost: Deepgram pricing is entirely usage-based, so total cost can be harder to predict than flat subscription tools.; LangSmith usage beyond the included trace allotment is billed in LangChain Compute Units at $1.50 per LCU and Storage Units at $1.00 per LSU, an unfamiliar metering unit compared to flat per-seat pricing, as of August 2026.

Where they differ

Only the attributes on which Deepgram and LangSmith actually diverge.

Attributes where Deepgram and LangSmith differ
Attribute	Deepgram	LangSmith
Starting price	Free	On request
Pricing model	usage-based	subscription
Free tier	Yes	No
Platforms	web, api	Web
Category	AI Tools	Software Development

Identical on both: user rating (Not yet rated).

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 Deepgram

Flux speech-to-text
Flux text-to-speech
Voice Agent API
Real-time and batch processing
Self-hosted deployment
Audio intelligence

Only in LangSmith

Nothing recorded that Deepgram does not also cover.

What people use each for

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

Deepgram

Building real-time voice agents for customer supportnot LangSmith
Transcribing recorded audio at scale via batch STTnot LangSmith
Adding conversational text-to-speech to voice applicationsnot LangSmith
Self-hosting speech models for data residency requirementsnot LangSmith

LangSmith

No use cases recorded yet. See the LangSmith review.

Where each one falls short

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

Deepgram

Pricing is entirely usage-based, so total cost can be harder to predict than flat subscription tools.
The Growth plan requires a minimum $4K/year commitment to unlock discounted rates.
Enterprise features and custom SLAs require a direct sales conversation rather than self-serve signup.
Some promotional per-minute rates are time-limited, meaning long-term pricing may differ from current promotional rates.

LangSmith

Usage beyond the included trace allotment is billed in LangChain Compute Units at $1.50 per LCU and Storage Units at $1.00 per LSU, an unfamiliar metering unit compared to flat per-seat pricing, as of August 2026.

Pricing, plan by plan

Deepgram

Free

Pay As You Go$undefined/mo
- $200 free credit to start
- No minimums or expiration
- No credit card required to start
Growth$undefined/mo
- Save up to 20% with annual pre-paid credits
- Minimum $4K/year commitment
- Credits applied against actual usage
Enterprise$undefined/mo
- Custom pricing for large-scale deployments
- Dedicated support and contracts

LangSmith

On request

No published plan breakdown. See the LangSmith review.

Which should you pick?

Choose Deepgram if

You need flux speech-to-text.
You want to start without paying.
You work on web, api.
You also want flux text-to-speech.

Deepgram review

Choose LangSmith if

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

LangSmith review

Questions people ask

Is Deepgram or LangSmith better?: Neither clearly leads. Deepgram starts at Free and LangSmith at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Deepgram or LangSmith?: Deepgram has a free tier; the other does not. Paid plans start at Free for Deepgram and On request for LangSmith.
Does Deepgram or LangSmith run on more platforms?: Deepgram runs on web, api. LangSmith runs on Web.
Can I use Deepgram for free?: Yes. Deepgram has a free tier, so you can try it without paying. LangSmith starts at On request.
What is Deepgram best used for?: Deepgram is most often used for building real-time voice agents for customer support, transcribing recorded audio at scale via batch stt, adding conversational text-to-speech to voice applications, self-hosting speech models for data residency requirements. Of those, building real-time voice agents for customer support and transcribing recorded audio at scale via batch stt are not what LangSmith is typically brought in for.
What can Deepgram do that LangSmith cannot?: Deepgram covers Flux speech-to-text, Flux text-to-speech, Voice Agent API, Real-time and batch processing.

Answered from the vendors’ own pages

Deepgram: What does Deepgram cost?

Deepgram uses usage-based pricing starting with $200 in free credit, pay-as-you-go rates per minute or per character, a Growth plan with annual pre-paid credits requiring a $4K/year minimum, and custom Enterprise pricing.

Source

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

New users get $200 of free credit with no credit card required, which can be applied to speech-to-text, text-to-speech, or voice agent usage before any payment is needed.

Source

Deepgram: How is usage metered?

Usage is metered per minute of audio for speech-to-text and voice agent calls, and per 1,000 characters for text-to-speech, with add-ons like redaction and entity detection billed separately per minute.

Source

Deepgram vs LangSmith

Deepgram

LangSmith

The short version

Where they differ

What each one covers

Only in Deepgram

Only in LangSmith

What people use each for

Deepgram

LangSmith

Where each one falls short

Deepgram

LangSmith

Pricing, plan by plan

Deepgram

LangSmith

Which should you pick?

Choose Deepgram if

Choose LangSmith if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Deepgram

More on LangSmith

Keep looking

Other head to heads